Bigger Fuel Injectors Without Tune

The 1100cc high impedance injector can be used with any fuel type. I have a 224 cam, polished and ported GM Performance LS2 Heads, Long tubes, with no cats, A K&N. We stock new and remanufactured fuel injectors and injector assemblies for Detroit Diesel 271, 371, 471, and 671 natural and turbocharged engines. Introduction. there is nothing you can really do to "trim" the fuel in vacuum conditions, without having a costume tune done. You won't get more power just adding bigger injectors, but you will hit power limits with other mods fitted if you don't supply enough fuel. The length of fuel lines from the pump to each injector is normally the same for each cylinder in order to obtain the same pressure delay. 7 Bar Boost using only RON 95 Petrol. Fuel pumps deliver the fuel from the fuel tank to the engine. Without the special tool, you could damage the throttle valve. Fuel injectors do not create horsepower, they support horsepower. Of course that is not accounting for the injector latency that Ferm. You will need a special tool to do this job. Electronic fuel injectors are built to precise dimensions, measured in microns. PD's do not run with larger injectors/nozzles without a tune I doubt the fuel feed to the injector will make any difference to overall power judging by the amount of fuel is returned even at WOT Slamhouse - you need a larger turbo to get more power! Ry _____. 9L/100km over 756km of testing in the GXL. Precision Turbo & Engine is a leader in turbocharger technology for street and race applications. If you have the need for extra fuel, like with a large turbo, larger injectors are a must. The spray behaviors of one new and one aged injector are compared using Mie-scattering. Because if your doing N2O then you need more fuel so you need to do fuel regulator and if your doing alot of N2O then get a bigger fuel pump and tune it all with a s-afc. If you throw in bigger injectors it will hold that injector open for the same amount of time as the smaller injectors and it will dump TONS of fuel in. By starting the flow of fuel sooner, and ending it later than the stock software will allow. I figure the computer should be able to adjust for the extra fuel slightly and If its running a big rich that's ok cos I have the boost higher and the car is running lean as it is anyway. Fuel injectors are finely tuned devices with narrow inlets and outlets. If a modification is made to the ECM increasing fuel flow to the cylinders without boosting the air flow via a turbo, the engine will operate less efficiently by burning more fuel, creating higher exhaust temperatures (EGT) and dramatically lowering fuel economy. I’ve given my two cents to SIBO Amigos here, but I thought it would be worthwhile to Continue Reading about A Guide to Healthy Snacking with IBS (+ 10 Low FODMAP Snack Recipes). Larger injectors do not add power. You can connect the on-car fuel injector cleaner to the fuel pressure test port, if available. Cons: It's possible to lose that sound of the engine you love when using fuel injectors. The only way to modify for bigger injectors is to tune the ECU. The injectors that we and others use are the Siemens Deka 80lb/hr shorty injectors part number A2C32624700. The fuel injector is easy to install, and they are quite simple to replace. In 2020 -- a year that has included the company's long-awaited eligibility for inclusion in the S&P 500 -- Tesla (ticker: TSLA) shares jumped by more than 400% before a 5-for-1 stock split in late August. We have found that you can increase the injector about 50% to 90% without any issues on most vehicles. Smarty doesn't have enough timing for larger injectors. Ford uses the concept of injector slopes, breakpoints and battery voltage latency adjustment to cover the behavior of injectors. 5 afr with -10 fuel trim i have made some. I current have a PowerAxel base tune with air intake and turboback exhaust set up. 8 injectors are like a 230cc where the 1. Q - Can you change the flow rate of my injectors?. Without a way to tune the ecu (below), you cannot add larger injectors without causing other issues. Whether you need bigger injectors should be based on capacity or duty cycle. So what happens here in terms of fuel flow with this stroker pump from S and S 3000 RPM. HPFP Upgrade – This upgraded replaces the internals of the HPFP with a larger bore pump. The “easiest” way to add big power to your C5, C6 or C7 Corvette is nitrous oxide. Bosch provides a specification for protection of electronic fuel injectors, which is a minimum capture efficiency of 87% at 5 microns, and 100% capture efficiency at 35 microns. Start modding it then your fuel system will need to be looked at. 8 30 valve without changing fuel pump? I already have intake system and exhaust by the way!. 0 ms (this is important!), and; Then we get our "best idle" fuel delivery amount of: 2. I already have tuner so wanted to save some cash. Atomizer 3 850 PPH. Fuel Injector Guide. You can;t do a stock tune unless you can fool the ecu into thinking it is getting more or less air. the other reason is due to misinformation that they are maxxed out and that more fuel gives more powe. As per industry standard, all injector flow rates are calculated at a fuel pressure of 43. Now, there is also the idea of putting 2 injectors per cylinder at differing angles to increase efficiency and increase the torque response levels and prevent the 100% duty cycling of the injectors. The Driver Demand, Smoke Limiter and Torque Limiter IQ values are set on the basis that if the ECU requests 35mg of fuel at 2500rpm, the injectors are going to deliver 35mg. I am not a retail store and not a distributor for fast or Bosch so I have no way of warranting them. So my educated guess is that stock injectors are EV6? and some places sell EV6 m and EV6 L, whats the difference? I need to buy some soon. i have heard some guys have big problems with the sniper set-up. Better still. Clogged fuel injectors allow either too much or too little fuel into the engine, causing any number of problems with your cars performance, fuel economy and emissions. A fuel return line is essential, and must be included in your fuel tank/delivery setup. 60lbs injectors will work and will idle on the stock system but not nearly as smooth as it will with a boost referenced fuel system with a return line from the fuel regulator at the rail back to the tank. The stock "Narrowband" oxygen sensors on your car are only calibrated to be accurate in a range near 14. Thing like ported and polished heads with larger valves, racing cams, racing pistons, headers, etc. In 2020 -- a year that has included the company's long-awaited eligibility for inclusion in the S&P 500 -- Tesla (ticker: TSLA) shares jumped by more than 400% before a 5-for-1 stock split in late August. Brand NEW nozzles. comp came wid d kit, Aza. 7272 (ratio from above * old master fuel number) Better to be rich than lean, so I would round up to a new master fuel number of 9ms. With this much flow there may be issues with running the fuel tank below ¼ full. The typical response will be 80% duty cycle. is it safe to run 650cc injectors on a cobb stage 2 map for the ap. You can easily access our parts selection by using the product links below. 55lb hour, and i want bigger injectors what type of car or another holden would i get them out of and if u have the injector number it would be good i was thinking go abit bigger around the 20lb 24lb mark. Ford truck owners who like the durability of the factory fuel settings on their 7. The current injectors were a surprise when we went to pull the ones off a second motor that we picked up and seen how different looking they were. The 2020 Cadillac CT5 is a compact luxury sedan uniquely positioned between small luxury sedans (think Audi A4, Mercedes-Benz C-Class and BMW 3 Series) and their larger, more expensive mid-size. Mfg#: BOS380CC4 Qty: Choose how many gift cards you would like below. So, here's the layout: If you have an ECCS from 1984-1987, then it is designed for peak and hold fuel injectors. If the fuse is okay a fuel injection wiring diagram is needed to help trace the wire and repair the connection. Chips, exhaust, larger turbos, bigger/slotted/drilled rotors, high performance brake pads, manual boost controllers, performance shocks/struts/springs, airbox mods and more!. therefore, i want to do it once and only once unless i get cams. Running Bigger Injector’s. The smallest of particles can increase wear, or even destroy a fuel injector. is it safe to run 650cc injectors on a cobb stage 2 map for the ap. Bosch provides a specification for protection of electronic fuel injectors, which is a minimum capture efficiency of 87% at 5 microns, and 100% capture efficiency at 35 microns. The fuel injector is easy to install, and they are quite simple to replace. 0 @ 124mph on 93oct - 10. 6 and with the fuel trim on it would idle at 2. The direct drive ignition feature allows users to drive a coil directly from the ECU, without the need for an igniter or ignition module. Having the injectors isnt a bad idea with him doing N2O. 12 OHMS) Saturated Bosch injectors which work on most top feed Bosch fuel injected vehicles. If the injectors are replaced with 80lb injectors, the ecu will now be spraying approximately (80/19=) 421% more fuel than needed. When we have finished the tuning process, the fuel injectors always mix the correct amount of fuel into the air in the intake manifold, before the air/fuel mix enters the cylinders. I was wondering if the stock fuel injectors were too small for bigger fuel rails because I'm sure the air/fuel ratio is proportionate for these motors and the stock injectors seem a bit to small. Smarty S-03 tuner is designed for stock injectors and caps out the timing too low. Electronic fuel injectors are built to precise dimensions, measured in microns. First of all, adding larger fuel injectors WILL NOT CREATE EXTRA HORSE POWER! There is a common misconception that the larger the fuel injector, the more power they create. On the LS PCM's there is a table which controls the end of injection target so you can fudge when the injector pulses. First, some background information on how the Subaru ECU controls Air-to-Fuel Ratio at low load (idle, low throttle, cruising) where AFR is kept at ~14. it states ur driving with larger injectors WITHOUT a tune. Then about a year later I got the 36lb/hr injectors and kept running the same hi-lo chip and I was able to run the stock turbo all in without leanout. I'd really like to install bigger fuel injectors (from a vibe GT) and run without the fith injector on the s/c. It doesn't cure all of the rich smell, but does make it more livable in a daily. i will probably have to make the fpr adjustable anyways bc of all the extra fuel it will have to flow. It might not be necessary to scale all of the fuel tables as described below. Holley EFI. If you throw in bigger injectors it will hold that injector open for the same amount of time as the smaller injectors and it will dump TONS of fuel in. 2005 STI - 11. Even with computer chips, larger injectors and bigger air meters, there are times where the requirements of an engine package could better be served with an aftermarket EFI system. Corvette C5 1997-2000 LS1 Holley STS Twin Turbo System With Tuner & Fuel Injectors SKU: STS2006 This is a Holley Air-to-Air Intercooled STS Twin Turbocharger system without tuner and fuel injectors for the Chevy Corvette C5 1999-2000 LS1 which will get you horsepower and torque gains of 30-50 percent over stock. if i was to get bigger injectors (deatschwerks 650ccs) without tune for a couple months would this be ok? 2. Whether you need bigger injectors should be based on capacity or duty cycle. On the other hand, a large portion of the market likes to increase performance. You will need a special tool to do this job. NB: We got 90% BHP Increase on the Perodua Viva! Warranty is 6 months. On high-speed engines the plunger pumps are together in one unit. First of all, I am a tuner (I'll let my credentials speak for my abilities). Very few production engines use an injector flowing more than 500cc/minute or 50lbs. Injector Pulse Width Multiplier vs. However people regularly upgrade nozzles without a tune and see increased mileage and increased performance (even if mpg increase is just from having worn nozzles). I think the 2001 PCM isn't programmed to correctly run the 1999 injectors and creating a lean cond. Enough that it won't run right without a tune. SL 450 models are powered by a 3. The standard fuel injector for the GTS is IWP182, with three holes and a flow rate of 158 cc/min at 3 bar pressure. In the lower right, enter in your new injector flow rating and the fuel pressure it is rated at. and instead use larger injectors and tune the engine management system. You mean the WOT afr will need to be adjusted and tuned, correct? That is a given. I figured on average the Evo fuel pressure is about 35psi base, hence the small scalings for large injectors (I. Another way of increasing the FI fuel delivery for larger displacement engines would be to switch to different injectors which have higher flow rates. 5 exhaust RR, 230/236 - 110 lobe sep, 108 intake centerline (2 deg. Right now, my injectors are bigger than they need to be, but that leaves room for future mods. In essence, fuel economy. 8 litres per 100km on the combined fuel economy cycle for all three grades and both transmissions, we used 66 litres of diesel to achieve a real-world figure of 8. These injectors flow 88 lbs/hr at 43. You can;t do a stock tune unless you can fool the ecu into thinking it is getting more or less air. Bosch provides a specification for protection of electronic fuel injectors, which is a minimum capture efficiency of 87% at 5 microns, and 100% capture efficiency at 35 microns. It spins the rear wheel via a four-speed semi-automatic transmission. Next year i am looking forward to finish up my fuel system minus the tuning device, due to money issues i will have to save up a. If fuel is full of gunk, other injectors will fail sooner or later. 6 back down to 776, I subtract 37. You need to find what is causing your engine to run lean. I will most likely do the fuel pump. *Please note that all our listed injector flow sizes are rated at 43. Well I found out pretty early that the standard 215cc/min Beige injectors (top right) weren't going to deliver enough fuel for the new cams. This allows you to use a larger injector than normally possible without hurting idle and low speed driveability. You may feel like your Duramax has plenty of power but the fact is Emission Standards have forced de-tuning of the low-end power curve of your diesel. Larger injectors do not add power. On-car fuel injector cleaning forces pure fuel injector cleaner into the fuel rail, which can usually address fuel system deposits that an in-tank cleaner can’t. You can;t do a stock tune unless you can fool the ecu into thinking it is getting more or less air. 800-1500pph $ 446. The fuel side is a bit more complicated and has two parts. Since Dinan install the SC I have done a few mods to include SS headers, WI and a new tune @ 8PSI. When using stock fuel injectors, this value DOES NOT need to be altered. But, I am about to put bigger fuel rails on my 2003 GT before I get her tuned (), because I have the BBK 78mm Intake with a 1/2" Spacer underneath it. My suggestion is wait for John to finish experimenting with the shop Dart on larger injectors before jumping into anything. Ford uses the concept of injector slopes, breakpoints and battery voltage latency adjustment to cover the behavior of injectors. You should also take a look at the article on MAF Calibration as they often go hand in hand. 3L denso flex fuel injectors, the inner two injectors are deka 80's. Granted, if you were to tune for the larger injectors, you would end up running lower firing times (ms timing) as the larger injectors would supply more fuel in a shorter time, but this doesn't provide a real performance gain. upgraded valve train, soon to have hybrid TCT and FP. Upon nozzle closing, a fluid hammer phenomenon is created in the line leading from the rail to the injector that creates the pressure oscillations recorded at the injector inlet. HOW IT WORKS Installing a Direction Plus™ Pre-Fuel Filter kit between the fuel tank and the O. So what happens here in terms of fuel flow with this stroker pump from S and S 3000 RPM. Once they get the car tuned and on the dyno then there should be info as to when the limit of the stock fuel pump will be reached. Initially the injector was used to dump fuel into the combustion chamber but today the automotive injector is a highly tuned piece of hardware. Hey guys im looking into getting some fuel injectors before i go in for a tune. (even if its larger injectors so that the IDC is less than 80% when wot) Unless it was the LD9, but im 99. The smallest of particles can increase wear, or even destroy a fuel injector. Besides, I only paid $180 for 8 new injectors (either ebay or a guy on 3. I figured on average the Evo fuel pressure is about 35psi base, hence the small scalings for large injectors (I. Electronic fuel injectors are built to precise dimensions, measured in microns. The extra 1. That's why anyone who runs a 7th injector or 6 larger injectors has to upgrade pumps. Fuel Injector Clinic is owned read more View Details. XFI fuel injection system E. Electronic fuel injectors are built to precise dimensions, measured in microns. Size offerings "Ò stock injector size, common turbo-upgrades, tuning platform, and limits of engine internals; these all affect our decision on what sizes to offer in any given application. So the Diablosport Intune I3 allows you to: 1) Install the 93 tune 2) Modify the stock parameters 3) Do a custom tune. New Corvette fuel injectors prevent rough engine performance and allow your engine to reach its full RPM. It doesn't cure all of the rich smell, but does make it more livable in a daily. 0 twincharged SVT Focus running upwards of 25 lbs of boost and I had perfectly good low load and idle fuel control using the a modified OEM ECU and later on using a Haltech E6X. For the quarter, same-store fuel volumes decreased 21. In order to get more power can I simply just install bigger injectors on my 2003 Volkswagen Passat 2. The ignition delay of the SR fuel is sensitive to the fuel quantity difference. 5 lbs / 8 cylinders / duty cycle (in this case, 80%). Fuel oil with a substantially greater viscosity will cause degraded atomisation from injectors that are deigned for a thinner fuel. These injectors can help your engine perform at maximum capacity and boost your fuel economy. Basics I removed my skip-shift (CAGS/CARS) by simply toggling the switch. If you see a 85% duty cycle using a PC you probably have a clogged filter or a hole in your fuel supply line. Jens von Holten, owner, and Tim Jilg, general manager of Fuel Injector Clinic, knew these injectors would be a challenge and since I would be tuning the Evo myself, they saw this as an opportunity to assist them in the development of new flow bench testing strategies to further improve the matching process of high flow fuel injectors in the nonlinear injector pulse width (IPW) operating range. do i need to get a walbro fuel pump if i get bigger injectors? 3. Chips, exhaust, larger turbos, bigger/slotted/drilled rotors, high performance brake pads, manual boost controllers, performance shocks/struts/springs, airbox mods and more!. Electronic fuel injectors are built to precise dimensions, measured in microns. Cheap injector puller; what size is fuel connection on injector? I know lots of people have successfully removed their injectors without a puller. I will most likely do the fuel pump. i also have a sct ba2600 maf which is tuned for the 60's. While fuel injectors are rated at a 100% duty cycle, it is common practice to size the fuel injectors based on a 80% duty cycle. 5818 (old injectors/new injectors) 0. COBB Tuning is excited to offer the 1300x² fuel injector, designed in partnership with Injector Dynamics and Bosch Motorsport. You can alter the scaling of the main fuel table by adjusting the 'Master Fuel' value. The fitting is for connection of the cold start injector fuel line. You should see how gross the original injectors were. Fuel pumps deliver the fuel from the fuel tank to the engine. Data loging a run the load hits 76% Is this the actual load or is it actually 92%? Figuring the MAF curve is changed 16% (or there abouts) to comensate for the larger injectors in the ECM pprogramed for 25s. In order to get more power can I simply just install bigger injectors on my 2003 Volkswagen Passat 2. Using various tuning software, Gearhead Sales LLC has programs available that extract extra mileage and performance over the already pre-loaded programs provided by SCT, and Bully Dog. I don't see anything conceptually wrong with using a strong solvent to clean fuel injectors in-situ. For additional fuel larger injectors and/or high fuel pressure can be used. When my girlfriend's car ('97 Civic) starts to idle rough, a bottle of fuel injector cleaner seems to fix it right up. 7 @ 132mph on 116oct Save Share. (car was originally a 2. I have added the dyno after the headers, but before the new pulley. The injectors are held open by the fuel pressure. 3L denso flex fuel injectors, the inner two injectors are deka 80's. If your problem with the fuel injectors is pretty bigger than usual, then you might need to replace the entire fuel injectors. Fuel injectors can be used in any car you like, and they can be swapped with the carburetor at any time. If you’ve added a turbo, a higher flowing fuel pump, a bigger exhaust and remapped your computer, you’re going to need bigger fuel injectors. In addition to this, the combustion process of a baseline diesel fuel and a blend with TPGME (tripropylene glycol monomethyl ether) are compared. 125/hr at what will probly take 2 hrs (thats what every dyno guy has told me here) is not cheap. Ignition delay when using. 350's should run 21 lb. Another question is about fuel pump booster. I along with several friends ran a ET 15. Your car will run worse no matter what boost level your at. On mine it's 100% worthless. Typical length Factory oem injectors with 8k miles before taken out for a supercharger and bigger injectors do NOT contact me with unsolicited services or offers post id: 7163709532 The manifold injector bungs are 0. If a modification is made to the ECM increasing fuel flow to the cylinders without boosting the air flow via a turbo, the engine will operate less efficiently by burning more fuel, creating higher exhaust temperatures (EGT) and dramatically lowering fuel economy. Fuel injectors are responsible for delivering fuel to the engine. You mean the WOT afr will need to be adjusted and tuned, correct? That is a given. Thus Even with a cam you would probably be fine with stock injectors. Mfg#: BOS380CC4 Qty: Choose how many gift cards you would like below. These injectors are fully remaufactured with new internal parts. STS Turbo Remote Mount Twin Turbo System without tuner & fuel injectors -Standard Kit (2001-2004 Corvette LS1 & Z06 LS6) More Views. 2% in the U. Apparently I will need a tune if I buy new, bigger injectors. 0 have two spool valves on top of the injector. Consider it a tune up for your fuel system- it’s really amazing the difference people experience after having a fuel injection and throttle body cleaning on a car that has gone more than 60,000 miles without those services. The spray behaviors of one new and one aged injector are compared using Mie-scattering. Note: These values are mainly only tuned in the 8-14. Tuning with a Smarty Programmer Written by pepsi71ocean FOREWARD OK guys, here is the scoop. The injectors are held open by the fuel pressure. If you have recently installed or changed any of the following you should consider tuning immediately: Larger camshafts. Looking for a larger injector to support your big horsepower goals? Listing is for a set of 4pcs BOSCH ev14 2200cc ev14 fuel injectors to suit the 04-09 Honda S2000 F22E Engine (PLEASE VIEW VEHICLE COMPATIBILITY BELOW). If your problem with the fuel injectors is pretty bigger than usual, then you might need to replace the entire fuel injectors. There simply isn't enough fuel volume even with increased fuel pressure and tuning to be able to feed the engine with the 47s. Or perhaps you just bought a used car with unknown maintenance history and want to give it a full tune up. A clogged fuel injector is usually the result of the fuel filter not doing its job well enough, allowing particles into the fuel injectors. In recent years, many fuel injector manufacturers have developed high flowing injectors based off the Bosch EV14 family of fuel injectors. However, I am told by every tuner to get bigger injectors. Anyone know what injector is stock? Example g. Electronic fuel injectors are built to precise dimensions, measured in microns. "S" (intake - from fuel tank, large outlet), "R" (return - to fuel tank, small tube). the cams that they sell w/ bigger fuel lobes were made by comp cams. 7272 (ratio from above * old master fuel number) Better to be rich than lean, so I would round up to a new master fuel number of 9ms. 3 Powerstroke Full Force Diesel Stage 1. Guess my car was not tuned properly at the higher rev and injectors max out capacity. These fuel injectors are factory modified and flow matched Bosch 0-280-155-868 injectors. It does not serve any purpose. Even with bigger injectors and tuning around dropping fuel pressure, they don't offer much beyond this power level so skip past these if your goals exceed this amount of. Buyers who need more can select a twin-turbocharged, 3. TPIS's Jim Hall strongly recommends a "high-quality unit such as those made by Bosch—certainly no Chinese-made stuff!" A higher-capacity, in-tank fuel pump is needed to support the larger injectors. the other reason is due to misinformation that they are maxxed out and that more fuel gives more powe. This leaves the O. The fuel injectors that are in your BMW are more than adequate for stock engines, and supply more than enough fuel for maximum power and open throttle. This allows you to use a larger injector than normally possible without hurting idle and low speed driveability. It is compatible with pump gasoline, E85, and all race fuels!. That’s half a liter every minute at full throttle per injector. Electronic fuel injectors are built to precise dimensions, measured in microns. I have an 04 vf48 WRX Auto. The intensifier piston is seven times greater than the surface area of the plunger. Consider it a tune up for your fuel system- it’s really amazing the difference people experience after having a fuel injection and throttle body cleaning on a car that has gone more than 60,000 miles without those services. Fuel injectors 1 Answer. Phantom knock elimination will cure your cars over-reactive knock sensor, while allowing it to keep working, and your knock counts will show up on your. The only way to modify for bigger injectors is to tune the ECU. Jens von Holten, owner, and Tim Jilg, general manager of Fuel Injector Clinic, knew these injectors would be a challenge and since I would be tuning the Evo myself, they saw this as an opportunity to assist them in the development of new flow bench testing strategies to further improve the matching process of high flow fuel injectors in the nonlinear injector pulse width (IPW) operating range. Whether you need bigger injectors should be based on capacity or duty cycle. Anytime you can better atomize fuel you'll have a more efficient burn. Electronic fuel injectors are built to precise dimensions, measured in microns. Go to 20 - 500 bar intermittently, or for short burst of power. 7:1 A/F ratio, and will have a high level of variation between different sensors on different cars and should not be used to tune fuel ratios while under load. CURRENT AFFAIRS FEB. dirty injectors can cause a lot of tuning problems. I was under the impression that injectors are built in accordance with turbos and can support any boost. Proper filter maintenance is especially important in diesels because fuel contamination can clog up the tiny holes in the injector nozzles. 100% drop in, brand new, requires no core, and comes with a new VGT solenoid. Show Full Signature Holley Stealth Ram, 42# injectors, AFR 190 heads, 1. Changing Injectors. GM lists the pressure range for the 22 July 2000 CURING THE FUEL INJECTOR BLUES The manifold tuning valve (MTV) can be removed from the top of the intake to allow visual inspection of the pressure regulator area without removing the plenum. In essence, fuel economy. Rad,cool bypass, kooks headers and t/d's with cats on the way,and 3. My main question is if I need to reprogram the ecu or Unichip to run the larger injectors or if they will just flow more fuel. The Fuel Injector Clinic 1100cc injector is 20% larger than our 900cc (Fuel Injector Clinic 900cc is the same as ‘1000cc’ sold by others). Granted, if you were to tune for the larger injectors, you would end up running lower firing times (ms timing) as the larger injectors would supply more fuel in a shorter time, but this doesn't provide a real performance gain. For example, a 500cc injector puts 500 cubic centimeters of gasoline into the engine at peak flow. The fitting is for connection of the cold start injector fuel line. Since having a "bigger" cam installed, tuning has become even more important, and requires tweaking of more tables than is normally necessary for a stock car. XFI fuel injection system E. Depends on why the injector failed. In some applications offering an 800cc instead of an 850cc is all it takes to have an injector that is easier to tune without leaving too much fuel. You mean the WOT afr will need to be adjusted and tuned, correct? That is a given. -Stock engine, larger turbo, header, professionally ported head and intake flowing 225+cfm, cone filter, 3" exhaust, FMIC, 255 lph fuel pump, large aftermarket cam like a Stage 2 or Stage 3 from Boport at ~25-30 psi will produce roughly 350-450rwhp (stock rods won't last long at over 400rwhp unless the tune is perfect so plan accordingly). So keep that in mind when deciding on your Injector Size Scaling. The only thing I found different from the 1999 motor and the 2001 was the fuel injectors have less flow in 1999. Another way of increasing the FI fuel delivery for larger displacement engines would be to switch to different injectors which have higher flow rates. By starting the flow of fuel sooner, and ending it later than the stock software will allow. My rig is a 1996 grand cherokee laredo 5. The Fuel Injector Clinic 1100cc injector is 20% larger than our 900cc (Fuel Injector Clinic 900cc is the same as ‘1000cc’ sold by others). FIC Fuel Injector Set Mitsubishi EVO X 2. Another question is about fuel pump booster. While fuel injectors are rated at a 100% duty cycle, it is common practice to size the fuel injectors based on a 80% duty cycle. Fuel Injector Guide. Your diesel injectors can become worn and weakened over time. Leave other riders in the dust with the biggest, most powerful street-compliant crate performance engine Harley-Davidson has ever created. Electronic fuel injectors are built to precise dimensions, measured in microns. The following parts are great options for any Corvette owner who needs replacement or performance fuel injectors. With the Unichip you can use bigger injector’s but because we control fuel though the MAF or MAV sensor on 90% off the vehicles you will be limited to how much you can increase the injector size. If your new injectors came without seals, purchase new injector seals separately rather than reusing the old ones. I get asked all the time how meal spacing works without snacking, especially for those who tend to feel constant hunger throughout the day. My suggestion is wait for John to finish experimenting with the shop Dart on larger injectors before jumping into anything. Bosch provides a specification for protection of electronic fuel injectors, which is a minimum capture efficiency of 87% at 5 microns, and 100% capture efficiency at 35 microns. Second, I don't care if you're Jesus, without the proper injector calibration, you can NOT tune properly for an injector, regardless of what injector you're using. So the formula above is Flywheel HP *. if that was my car thats what i. Rad,cool bypass, kooks headers and t/d's with cats on the way,and 3. You do not need to do anything to the fuel system until you start making serious modifications to the engine that will actually make it take in more air. Turning up the fuel adds 25 horsepower without any cost at all. Truck did great, started to defuel around 1350-1450 and got between 15-17 mpg's. The 1100cc high impedance injector can be used with any fuel type. Running Bigger Injector’s. Of course that is not accounting for the injector latency that Ferm. Well I found out pretty early that the standard 215cc/min Beige injectors (top right) weren't going to deliver enough fuel for the new cams. In traditional fuel mode there is no input for the injector size. Please Note - Some tune providers have different levels of support for fuel injectors. Consider it a tune up for your fuel system- it’s really amazing the difference people experience after having a fuel injection and throttle body cleaning on a car that has gone more than 60,000 miles without those services. Howell and AFI (Affordable Fuel Injection) seem to be the most popular. Ideal for heavy towing, quick spool, and more power without extra lag like larger turbos. Read, The Thirst of Power. Otherwise, it will generate more problems for the engine. Fuel is atomized after impact with the valve itself or, better yet, directly at the injector tip. Atomizer 3 850 PPH. However, if you are planning on a throttle body injection set-up, you need a dedicated TBI unit (in order to supply the fuel to the injectors, etc. Dirt particles and contaminants in fuel represent a potential danger to the fuel injectors. Fuel injectors 1 Answer. If your problem with the fuel injectors is pretty bigger than usual, then you might need to replace the entire fuel injectors. In the past several years tuning data has become more readily available from injector companies. 60% of 776 is 465. 7272 (ratio from above * old master fuel number) Better to be rich than lean, so I would round up to a new master fuel number of 9ms. Turning up the fuel adds 25 horsepower without any cost at all. Understanding the internal mechanisms and the spray dispersion are critical to the longevity and reliability of the hardware. !Laugh! not juz im using my head but using facts as well, one of my fren has got a vf24 dropped into his stock engine wif stock fuel pump and injectors for over a year (hes got turboback exos done and sti TMIC done), well, he data logged his engine and everyting's running fine, healthy engine, its only recently he got his ride modded further by adding a bigger turbo thus he upgraded his fuel n. After time and use, these spool valves will start to weaken. AB - '97 California, and all Early '99 trucks. Also, the 'stock' program on a tuned ECU with injectors is not a bone-stock program, it still accounts for the larger injectors, but simply has a similar map to stock. If your new injectors came without seals, purchase new injector seals separately rather than reusing the old ones. Tuning is the final piece of the puzzle in the critical process of getting the right fuel injectors. 3L denso flex fuel injectors flow 78lb/hr, but none have been sent out for flow testing to verify that number to the best of my knowledge. to an extent on smaller tuning like 600 hp yes , but like i mentioned earlier when the hp get high enough every 1000 Ms of pusle width takes so many crank angle deg to hold the injector open that long so 4000 ms you would have to start spraying the injector way early and hold it open way late , not only is this going to way increase cylinder pressure it will mean alot of fuel will be sprayed. Dec 17, 2009 #1. If you have a throttle cable you are usually running the Motronic M3. Fuel injectors directly affect the fuel / air delivery of your vehicle. Now you can run the Siemens-Deka 60 lb/hr injectors on your Gen 1 Cruze / Gamma II with ZERO side effects! Getting enough fuel into a tuned-up 1. 45 lbs per hour of fuel per HP. 5 Powerstroke fuel injector by Unlimited Diesel can support up to 550 HP while being completely streetable and tow as well. 2008 Mustang GT: supercharger. Amount of fuel plus enrichment = (6. The injectors that we and others use are the Siemens Deka 80lb/hr shorty injectors part number A2C32624700. Fuel injectors directly affect the fuel / air delivery of your vehicle. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. is it safe to run 650cc injectors on a cobb stage 2 map for the ap. Q - Can you change the flow rate of my injectors?. i honestly havent had much trouble with keeping the injector clean so not worried about that at this point. Holley and Accel make 4-bbl TBI units. NEW INJECTOR SET -NO CORE CHARGE These injectors are capable of up to 700rwhp. Description: 2018 CVO Road Glide with the Fuel Moto M8 CVO 124" big bore kit, Wood WM8-408 camshaft, stock cylinder heads, Screamin' Eagle 64mm ported throttle body, 5. So you end up getting more timing at part throttle than you should and can cause detonation when you are not WOT. the KR engine should have top hat type injectors for the air shrouding system, the vacuum connection for it is either on the front of the inlet between cylinders 3 & 4 for the 50mm inlet, for the smaller ones its usually on the 5th injector housing. Or perhaps you just bought a used car with unknown maintenance history and want to give it a full tune up. 7 injectors are rated at about 30 lbs per hour with the 58 psi fuel pump. if that was my car thats what i. Compensation for these and many other factors are programmed into the ECM's software. I have 550cc injectors at this point. My main question is if I need to reprogram the ecu or Unichip to run the larger injectors or if they will just flow more fuel. The smallest of particles can increase wear, or even destroy a fuel injector. Billet 61x88mm GTX style compressor with extended tips. In some applications offering an 800cc instead of an 850cc is all it takes to have an injector that is easier to tune without leaving too much fuel. 7 horsepower. Nobody would love to come across such a snag, especially for those who have experienced the hefty repair charges from their local mechanics. 4l t-jets use the same size injectors but they swap out to larger injectors in the 220-230whp range to avoid anything more than a 80% duty cycle. Fuel injectors 1 Answer. Fuel injectors can be used in any car you like, and they can be swapped with the carburetor at any time. Of course that is not accounting for the injector latency that Ferm. We try to keep a set of these on the shelf at all times. EMC allows for up to 7 degrees of retardwhich is more than enough for a NA engine. "S" (intake - from fuel tank, large outlet), "R" (return - to fuel tank, small tube). Cruzin Performance is another source for cleaning/rebuilding injectors, as is Witch Hunter. After some research I found that Keihin, the company that made our injectors, also made six other flow rates for the same style injector. You need to find what is causing your engine to run lean. They are far-preferable to carburetors when you are repairing them. So, as the piston and plunger move downward inside the injector, fuel in the bottom chamber of the injector is being squeezed. I know plenty of guys using 46 lb/hr or larger injectors with MS and they have no issues at all and still have good fuel economy. Granted, if you were to tune for the larger injectors, you would end up running lower firing times (ms timing) as the larger injectors would supply more fuel in a shorter time, but this doesn't provide a real performance gain. Smarty doesn't have enough timing for larger injectors. For example, if the fuel line pressure increases (injector inlet), or the manifold pressure decreases (injector outlet), a smaller pulsewidth will meter the same fuel. Buyers who need more can select a twin-turbocharged, 3. Couldn't find the answer to my question so i will ask here. By starting the flow of fuel sooner, and ending it later than the stock software will allow. However, it will require tweaking the AFM idle-mixture settings and spring tension. Thanks alot guys. Deatsch Werks Fuel Injector Set Mitsubishi EVO X. Most of us don't make enough horsepower to know the difference in our mismatched systems, but any serious tuner will get it right. The fuel pump will be fine the the AFPR since you are restoring it back to stock pressure. Second, I don't care if you're Jesus, without the proper injector calibration, you can NOT tune properly for an injector, regardless of what injector you're using. 6-litre TDV8 can’t arrive a moment too soon for Range Rover Sport fans, who want the performance of the supercharged model without its high fuel consumption. It's the equivalent of saying that adding more lights to your living room will make you see better. The smallest of particles can increase wear, or even destroy a fuel injector. Snacking tends to be a big source of confusion for people with gut issues. If the injectors are replaced with 80lb injectors, the ecu will now be spraying approximately (80/19=) 421% more fuel than needed. We stock new and remanufactured fuel injectors and injector assemblies for Detroit Diesel 271, 371, 471, and 671 natural and turbocharged engines. The Race Tuner doesn't use Duty Cycle to measure the time the injector is open, This is a measurment (Duty Cycle) that PowerCommander uses. Without a return. Proven LS Horsepower. On the LS PCM's there is a table which controls the end of injection target so you can fudge when the injector pulses. Conversely, if you put in smaller injectors, you will get a positive value because you need to work the smaller injectors harder to supply the fuel needed in the map! If the new injectors are permanent. Performance injectors work by delivering more fuel into the combustion chamber, greatly increasing your vehicle’s power and performance. The left side fuel rail is stamped at the factory to identify same with the engine. 99 You save up to 50% Yamaha GYTR Power Tuner $243. the KR engine should have top hat type injectors for the air shrouding system, the vacuum connection for it is either on the front of the inlet between cylinders 3 & 4 for the 50mm inlet, for the smaller ones its usually on the 5th injector housing. But the bigger thing here is the fact that understanding how the smarty works, and base settings to start with seem to be non existence. 6% in Canada compared to last year. What you might not. I was wondering how high I can go before the stock injectors will not fuel enough and where I can buy bigger injectors. If the injection is electronic, larger injectors need to be matched to the ECU as it will need to lift the needle less or for a shorter time for the same fuel delivery. I would appreciate any input you could offer. 8 litres per 100km on the combined fuel economy cycle for all three grades and both transmissions, we used 66 litres of diesel to achieve a real-world figure of 8. However, if you are gentle on the pedal and have "new injectors with efficient nozzles" your fuel economy should go up when compared to dirty and worn nozzles. HOW IT WORKS Installing a Direction Plus™ Pre-Fuel Filter kit between the fuel tank and the O. By starting the flow of fuel sooner, and ending it later than the stock software will allow. Running a higher flow rate gives you overhead in the tune (same fuel provided, less duty cycle for injector). The Fuel Injector Clinic 1100cc injector is 20% larger than our 900cc (Fuel Injector Clinic 900cc is the same as ‘1000cc’ sold by others). mods: aem cai, crucial dp, and greddy evo2 catback. As you can see, there is a large difference in power dissipated between the two types. However, if you have an adjustable fuel pressure regulator, you can change the flow rating of a given injector to more closely match your engine’s needs. I think 50% more flow with a proper E85 tune could be an interesting setup. 1200cc HEMI Fuel Injectors by Fuel Injector Clinic ModernMuscleXtreme. The MicroSquirt® V3 is a fully-assembled surface mount technology (SMT) version of the MegaSquirt® fuel injection controller. In addition, the 2014's will also have larger injectors. upgraded valve train, soon to have hybrid TCT and FP. The system includes two primary (pri) 550cc injectors and two secondary (sec) 850cc injectors, with a switchover point from pri only to pri + sec which is a f(x) of coolant H20, rpm and load (to name the main. Choose Your Platform The 4B11 turbocharged Mitsubishi Lancer Evolution X is one of the best bang for your buck performance machines on the market. The factory injectors found in the Audi S3, Audi TTS, VW Golf ED30, VW Golf ED35, VW Golf Pirelli, VW Golf R & VW Scirocco R, Seat Leon Cupra & Seat Leon Cupra R K04 based vehicle are the largest Bosch HDEV 1 gasoline direct injection injectors currently available for the VAG 2. When we have finished the tuning process, the fuel injectors always mix the correct amount of fuel into the air in the intake manifold, before the air/fuel mix enters the cylinders. 0 Aftermarket. With some tuners, they simply adjust the entire fuel map to 'compensate' for the larger injectors. i will probably have to make the fpr adjustable anyways bc of all the extra fuel it will have to flow. Larger fuel injectors. Cons: It's possible to lose that sound of the engine you love when using fuel injectors. These fuel injectors have been made to our own specification and are ideal for tuning engines fitted with Jenvey style throttle bodies which require more fuel. Adjust the fuel injector height for the engine models in parentheses by placing the small end of the height gage in the hole provided in the fuel injector body, with the flat of the gage toward the fuel injector plunger. I have a 224 cam, polished and ported GM Performance LS2 Heads, Long tubes, with no cats, A K&N. Just think with the M45 2. My whole tune is now too rich, because all cylinders are getting the amount of fuel they are supposed to. Step 5: Fine-Tune the Flow Until now, your best option would be to calculate your injector size then round up to the next highest available injector size for your application. Gently probe both sides of the injector wiring connector, one of the wires should react by registering around 12 volts on the meter or illuminating the test light. walbro 255 fuel pump cobb intake cobb catted dp spt cat back exhaust will be installing 650cc injectors tonight if it is ok to run on the stage 2 map without getting a pro tune. Each cell contains the short and long term fuel injector control values required to maintain the correct air and fuel. It will not improve mpg by just changing injector flow rate. This way, you can run as much as 7-8psi as well. Tuning is the final piece of the puzzle in the critical process of getting the right fuel injectors. Fuel is atomized after impact with the valve itself or, better yet, directly at the injector tip. It might not be necessary to scale all of the fuel tables as described below. First of all, adding larger fuel injectors WILL NOT CREATE EXTRA HORSE POWER! There is a common misconception that the larger the fuel injector, the more power they create. The idle was choppy, but they pulled harder on stock tuning than the truck did with custom tunes without the bigger injectors. That's a little bit bigger than the 07 WRX injectors. Electronic fuel injectors are built to precise dimensions, measured in microns. I say it's not a bad idea because you can troubleshoot any driveability issues caused purely by your fueling upgrades before you stress the engine. Injector Pulse Width Multiplier vs. My injectors have been installed for 10 years and 110K miles so I want to have a puller on hand. Here's how I came up with that number. Holley has been the undisputed leader in fuel systems for over 100 years. 5 PSI ( 3 BAR ) and much more at higher PSI! In addition, these units are high-impedance. LSX Performance Parts. Leave other riders in the dust with the biggest, most powerful street-compliant crate performance engine Harley-Davidson has ever created. If not, it will benefit some LNF owners esp with cam w/ bigger fuel lobes. com) and they had a static flow rate of 390cc/min @43psi. Without an aftermarket reg on factory fuel pressure the injectors are at ~70% with a rich, safe tune. After time and use, these spool valves will start to weaken. Closed Loop Fueling. Second, I don't care if you're Jesus, without the proper injector calibration, you can NOT tune properly for an injector, regardless of what injector you're using. I was wondering how high I can go before the stock injectors will not fuel enough and where I can buy bigger injectors. Accordingly, the factory computer pumps out a longer fuel injector 'on time' (pulse width). "Resistance to Fuel Contamination - Quality of the Medium. In case I ever need to swap back I picked up a spare fuel rail, reg and factory injectors for $80. I had the ones I bought tested by Marren Fuel Injection (injector. Once the injectors were out I was amazed at the amount of debris around the OEM excuse for a seal. No you don't need a larger fuel pump to run bigger injectors. Holley has been the undisputed leader in fuel systems for over 100 years. Start modding it then your fuel system will need to be looked at. bigger injnectors, fmic, fuel pump. FAST is the leading developer of electronic fuel injection systems, EFI components, intake manifolds, tuning tools for high performance and street applications Fuel Injectors JavaScript seems to be disabled in your browser. The flex injectors are shorter iirc and flow substantially more fuel. 7 injectors are rated at about 30 lbs per hour with the 58 psi fuel pump. NEW INJECTOR SET -NO CORE CHARGE These injectors are capable of up to 700rwhp. I had the ones I bought tested by Marren Fuel Injection (injector. The "problem" is that the ECU is looking at the 02's and adjusting short term and long term fuel trims based on how it was programmed aka the "tune". Just think with the M45 2. comp came wid d kit, Aza. 2000): About $24/injector plus shipping for the injector rebuild. The Fuel Injector Clinic 1100cc injector is 20% larger than our 900cc (Fuel Injector Clinic 900cc is the same as ‘1000cc’ sold by others). Whomever told you that you'd have too much fuel at idle on the 60s hasn't a clue WTF they are talking about. It doesn't cure all of the rich smell, but does make it more livable in a daily. The factory injectors are small for flex fuel operation, you'll see noticable performance improvement above 5500rpm on E85 with proper sized fuel injectors. You mean the WOT afr will need to be adjusted and tuned, correct? That is a given. Do not upgrade injectors without any style of engine management. our "well-tuned" injector open/close time is 1. Electronic fuel injectors are built to precise dimensions, measured in microns. so i have a stage 2 06 sti. " This statement is completely false. Injector Pulse Width Multiplier vs. Your car will still hit fuel cut because the mass air flow sensor still thinks that the air flow exceeds maximum value. 5 exhaust RR, 230/236 - 110 lobe sep, 108 intake centerline (2 deg. Fuel Injector Guide. Adjust the fuel pressure WITH the vacuum line attached. To do this, you should take the ratio of the flow rates: F'/F and change the fuel pressure such that V'/V = F'/F x Pf'/Pf. They are all new units; not modified stock units or remanufactured from used cores. Buyers who need more can select a twin-turbocharged, 3. Compensation for these and many other factors are programmed into the ECM's software. i dont know if the european guys with the 1. i honestly havent had much trouble with keeping the injector clean so not worried about that at this point. Cummins Diesel Injectors from Sinister Diesel. How Fuel Injectors Work. The injectors are held open by the fuel pressure. at the moment Im running 24lb injectors and Im probably going to get the car dyno'd and have a bit more tuning done on the dyno in the spring. Fuel Injector Facts. They are called “shorty” because they are only 48mm long from end to end. There are two fuel jet columns listed below. If you need the wiring diagram for a 420A let me know. Just to let everyone know what I have been doing. Chips, exhaust, larger turbos, bigger/slotted/drilled rotors, high performance brake pads, manual boost controllers, performance shocks/struts/springs, airbox mods and more!. com forum, I forget). 7 injectors are rated at about 30 lbs per hour with the 58 psi fuel pump. The stock LNF injectors are 120#, and the Opel injectors are 135# per hr at 10 mpa. First of all, adding larger fuel injectors WILL NOT CREATE EXTRA HORSE POWER! There is a common misconception that the larger the fuel injector, the more power they create. These injectors flow 88 lbs/hr at 43. While the gearbox is excellent. i honestly havent had much trouble with keeping the injector clean so not worried about that at this point. bigger will still work without a tune but it is just not required. i dont want to do the dyno tune until i am able to use these and what not. Set of injectors are about $250, being stock injectors will fail behind and force PCM to command injectors on longer at times they do not have to by using a bit larger injector and with a tune the gas mileage will go up and that savings pay for the new injectors along will gained performance that will not be seen with just a tune alone. Larger capacity fuel injector for performance uses. In 2020 -- a year that has included the company's long-awaited eligibility for inclusion in the S&P 500 -- Tesla (ticker: TSLA) shares jumped by more than 400% before a 5-for-1 stock split in late August. 5 psi (3 bar), they may have to convert their data (you can use our flow calculator or see Bernoulli’s Principle and Fuel Injectors above), but at least knowing that a 900cc/min injector is larger than a 800cc/min because they were measured on the same basis is made. yes a larger maf will scale the injectors slightly, you can also if you want more fuel, add a 4bar or larger injector and pull fuel, but it also (MAF) throws off the timing table thus is my argument, YOU the enduser and only adjust the entire board with adaption, your tuner would have to write the code to adjust values per rpm plot, THUS is why. 9 in the GX and Crusade bear out this claim. 2) Why did people start using the 550cc all of a sudden? Answer: We started out testing the larger injectors and found the 550cc to be optimal for a wide range of applications. Leave other riders in the dust with the biggest, most powerful street-compliant crate performance engine Harley-Davidson has ever created. It is apparent that using a low impedance injector without some form of current. Comes without a pressure sensor, you can reuse your stock one. My main question is if I need to reprogram the ecu or Unichip to run the larger injectors or if they will just flow more fuel. Upgrading injectors to the 4 hole will result in easier starts, better tip in response, & a leaner burn. The process of figuring out that appropriate amount of fuel (and spark) is called 'tuning'. If not, it will benefit some LNF owners esp with cam w/ bigger fuel lobes. As the kits stands, it will support 175hp. Nobody would love to come across such a snag, especially for those who have experienced the hefty repair charges from their local mechanics. hi, i have upgraded the injectors copied the right injector data but it runs too rich it wont idle without throttle, my afr is 11 or even richer, once the fuel trim kick in it would idle at 14. FIC Fuel Injector Set Mitsubishi EVO X 2. Capable of supporting over 500 HP in extreme applications, these gasoline direct. These injectors can help your engine perform at maximum capacity and boost your fuel economy. Inadequate fuel pressure or vol-ume can also cause long crank times or a no-start condition. The fuel injectors are a classic example of this - the computer tells them to open and close appropriately to provide the right amount of fuel to the engine. The smallest of particles can increase wear, or even destroy a fuel injector. Fuel Injector Calculator from WitchHunter Performance We would need more info on your performance and engine horsepower goal to give you better advice. KPA Table; Open up the Unit Conversion window found under the Tools menu. The stock "Narrowband" oxygen sensors on your car are only calibrated to be accurate in a range near 14. I think 50% more flow with a proper E85 tune could be an interesting setup. Consider it a tune up for your fuel system- it’s really amazing the difference people experience after having a fuel injection and throttle body cleaning on a car that has gone more than 60,000 miles without those services. They almost flow the same. This is a pretty common mod, many people will do either the injectors or the tune and not both. With the addition of larger fuel injectors, larger nitrous solenoids, larger nitrous nozzle line (to replace the small -3 line) and larger nozzle, 300+ horsepower has been made with this kit. Introduction. Fuel injectors are finely tuned devices with narrow inlets and outlets. It is apparent that using a low impedance injector without some form of current. If you need the wiring diagram for a 420A let me know. INJECTORS: PART # INJECTOR SIZE: LS1: EV1: 12533952 12554271 12555894 12456154 12482704 12561462: 1997-98 = 26. Buyers who need more can select a twin-turbocharged, 3.