I'm running a LQ4 with stage 3 243's,moderate size cam, edelbrock pro flo intake, and a 150 shot. Will 60lb injectors be too much? My tuner is worried about tuneability with these big injectors. Will he have a problem or could he tune accordingly?

 

Also. I have a adjustable fuel pressure regulator. Could I turn down the fuel pressure to the 43.5psi the injectors were rated for to put them at the rested output, rather then the 58psi that would put these at 60psi?

 

Depends on what 60s they are...

 

They are ev6 rated at 52lbs at 43.5psi

 

they will be fine, its not any different than having large injectors for a small cube (4.8) and big charger.

i think smokeshow is referring to having good injector data.

 

I won't be running a charger. Just will be N/A with nitrous. As long as they will be tunable. I think that's what he's worried about.

 

they are not big by any means, I'm guessing you'll be in the 550+ hp range. and the injectors will be 80% duty cycle or more .

do you have the pulse width data on them?

 

I do but I gave it to my tuner when I dropped the truck off. He was just worried about tuneability with a larger injector. He was telling me his 402 stroker in his vette has 42lbers that barely break 80% duty cycle. That why he was wondering if we would possibly have any issues

 

Assuming you are running a wet shot those injectors will not have to work very hard in your setup. They should be fine though, tuned properly they will behave just fine.

 

Good deal. I was hoping they'd work out alright. Yes, its a wet shot