Do I need a bigger fuel pump for bigger injectors?
0:141:37How To Tell When You Need Bigger Injectors [HPA Q&A] - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf our fuel pressure is dropping away that means that the fuel pump can't supply enough fuel to theMoreIf our fuel pressure is dropping away that means that the fuel pump can't supply enough fuel to the injectors. And. We can sort of mask. This by increasing our injector duty cycles.
How much HP can stock Duramax injectors handle?
Registered. 550 to 600 depending how healthy the rest of your fuel system is.
What injection pump does Duramax use?
Denso High-Pressure Fuel Pump For the first time in the Duramax engine's history, GM parted ways with Bosch for its fuel system and ECM needs. On the L5P, a Denso HP4 injection pump replaces the Bosch CP4. 2 found on the LML.
Can I put bigger injectors on stock engine?
You can;t do a stock tune unless you can fool the ecu into thinking it is getting more or less air. 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.
How much HP can a 6.6 Duramax handle?
Factory 6.6L Duramax engines will make 300 to 397 flywheel horsepower depending on the model. Virtually any model can be bumped up to around 600 hp (about 480 rwhp) with simple computer tuning, provided that the turbocharger and fuel system are in good working order.
What is the most sought after Duramax engine?
LBZ: 2006 – 2007 Still lacking emissions control devices, the LBZ is also one of the most popular Duramax engines. It has the best potential for performance and horsepower additions through various Duramax parts mods and tuning. Built stronger and more durable than previous engines, the LBZ is reliable and powerful.
What fuel pump does a 2021 Duramax have?
Denso HP4 fuel injection pumpUS Diesel Parts - Fuel System Components - 2017-2021 GM Duramax L5P. The GM L5P Duramax found in the 2017-newer GM HD pickup trucks is rated at 445hp and 910 lb-ft of torque is powered by the Denso HP4 fuel injection pump rated to run up to 29,000 psi.
Do I really need a lift pump on my Duramax?
Older Duramax models came equipped with a Cp3 high pressure fuel pump. This pump is generally considered to be more reliable but still needed a lift pump to support 520 -530 RWHP. You should install a lift pump if you just want to have the power there for fun, or if you have a dedicated competition truck.
How common is CP4 failure Duramax?
Registered. I have read that as much as 7% of CP4 fail on LML Duramax.
What happens if your injectors are too big?
It's easy to fall into the trap of thinking that bigger fuel injectors equal more power, but unless your engine is set up to deal with the extra fuel, you'll be on a fast track to trouble. The excess fuel will flood the engine and it either won't run at all, or will be running too rich.
Can I run bigger injectors without a tune?
In general, injectors need a tune. Otherwise, your ECU is trying to drive the new, bigger injectors using the duty cycle and dead times for the old, smaller injectors, which means too much gas potentially at the wrong time (i.e. - running rich and potentially missing).
How big of fuel injectors do I need?
of fuel per injector at an 80% (0.8) duty cycle....Flow Rate Definition, Calculating Horsepower Range.Injector Flow RateNaturally Aspirated EngineEngine w/ Power Adder24 lbs./hr.280-360 hp240-300 hp30 lbs./hr.350-450 hp300-375 hp36 lbs./hr.425-540 hp350-450 hp42 lbs./hr.500-625 hp410-525 hp4 more rows•May 27, 2017