Confused on injector size
#1
Confused on injector size
Hey guys, I'm trying to pick out a set of injectors for my engine. This is my 1st attempt at a injected engine so any help will be greatly appreciated. I have a 2004 LQ4, internals are stock, LS6 intake w/24# injectors, ported TB, screen less MAF, LT headers and straight pipes all in a 82 Camaro with the T56. After I get the engine running and make sure everything is sound I plan to add a cam this summer or fall. My question is will the 24# injectors feed this thing OK until I put a cam in it? Am I better off buying bigger injectors now? I haven't sent my ECM off to be tuned yet. Was waiting until I get the injectors figured out 1st and was planning on going with Frost for a tune unless somebody recommends another tuner. Thanks in advance for any help!!
#4
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that 6.0L engine is going to need something larger than 24# injectors.
it will run fine part throttle, but I really don't suggest running around hitting 6k rpm, as I'm betting the duty cycle/DEMAND for fuel will exceed those 24#ers
it will run fine part throttle, but I really don't suggest running around hitting 6k rpm, as I'm betting the duty cycle/DEMAND for fuel will exceed those 24#ers
#5
Even with no internal mods? Can anybody else chime in on this, I've only got a little more wiring to do and if I have to order injectors I'd wanna do it now. Also anybody chime in on best max rpm a stock bottom end on a LQ4 will hold and last at?
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they will provide plenty of fuel for that...you may be in the lower duty cycle ranges. Those are 56# at 58psi... if you have an adjustable fuel pressure (regulator) I would suggest turning them down to 43.5psi. they would then be 48.8LB injectors
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You really just need injectors. 36# would work fine, as your fuel pressure should be 58psi.
I see you are putting a T56 and the Lq4 in an older car, what kind of fuel system are you making or what do you have? You will need a regulator to regulate your fuel pressure... I'm not sure on the details of you fuel system, if you are using a factory LS1/LQ4/ Firebird/CAmaro system/tank.
I see you are putting a T56 and the Lq4 in an older car, what kind of fuel system are you making or what do you have? You will need a regulator to regulate your fuel pressure... I'm not sure on the details of you fuel system, if you are using a factory LS1/LQ4/ Firebird/CAmaro system/tank.
#14
I have a 4th gen plastic tank with a LS1 fuel pump, the tank it a direct bolt in for my 3rd gen, also have a fuel filter with built in regulator so I'm assuming its 58psi, I am going to need a regulator? What kind of pressure will the engine need? Sorry this is my 1st FI build