Important Fuel question!! Help plz!!
Thread Starter
Teching In
Joined: May 2007
Posts: 28
Likes: 0
From: Manitoba, Canada
Important Fuel question!! Help plz!! I have a just put a 382 stroker engine in my 91 camaro and I am unsure if the fuel pressure is significant for the new hungrier and angrier engine! I have a 255 walboro already installed in the tank and I have a non adjustable corvette fuel regulator installed as well. I did have a stock ls6 engine in the car prior to this install and the regulator was sufficient for that engine. Low down on the new engine goes as follows - ls6 382 stroker (all forged), lanati crank, comp cam 236 duration with a .525 lift (112 LSA), ported ls6 heads and ls6 intake AND 39lb injectors. I did measure the fuel pressure at the fuel rail and it was 50lbs at the rail. Will this be enough for this new engine or will I have to look at buying a new manual adjustable regulator. All comments welcome
Thanks
Thanks
Yes.. you can get away with 54 psi at idle.. but at WOT you better make sure your up to the +58ps. else you could get a lean condition.
What you many also want to check into is the duty cycle rate for your engine Injectors.
Suggest you research into the Fuel Injector Duty cycle and see what size injector are recommened and follow up with a good tune. Check on the Accel site or other that market performance Injectors.
What you many also want to check into is the duty cycle rate for your engine Injectors.
Suggest you research into the Fuel Injector Duty cycle and see what size injector are recommened and follow up with a good tune. Check on the Accel site or other that market performance Injectors.
LSx engine have a constant pressure no matter engine speed/vacuum unless they have an engine bay aftermarket AFPR
The 'vette filter/regulator is hardmounted inline and has no vacuum provision
How old is the filter? How long did it sit while you did the conversion?
The 'vette filter/regulator is hardmounted inline and has no vacuum provision
How old is the filter? How long did it sit while you did the conversion?
Thread Starter
Teching In
Joined: May 2007
Posts: 28
Likes: 0
From: Manitoba, Canada
Yes.. you can get away with 54 psi at idle.. but at WOT you better make sure your up to the +58ps. else you could get a lean condition.
What you many also want to check into is the duty cycle rate for your engine Injectors.
Suggest you research into the Fuel Injector Duty cycle and see what size injector are recommened and follow up with a good tune. Check on the Accel site or other that market performance Injectors.
What you many also want to check into is the duty cycle rate for your engine Injectors.
Suggest you research into the Fuel Injector Duty cycle and see what size injector are recommened and follow up with a good tune. Check on the Accel site or other that market performance Injectors.
LSx engine have a constant pressure no matter engine speed/vacuum unless they have an engine bay aftermarket AFPR
The 'vette filter/regulator is hardmounted inline and has no vacuum provision
How old is the filter? How long did it sit while you did the conversion?
The 'vette filter/regulator is hardmounted inline and has no vacuum provision
How old is the filter? How long did it sit while you did the conversion?
Is there any brands or types that I should consider more than others? Just a two line in one line out regulator..also, since I just have devised my own fuel line setup from the regulator to the fuel rail, I am using typical hose clamps to keep the hose tight on the rail. This has always been somewhat of a red flag in my mind as I have seen these clamps fail from time to time and if one fails while I'm driving...well, we won't go there. Is there anyway to match the 'stock clip in' setup that comes from factory gm at the fuel rail? Just a peace of mind question really..
Thanks guys for the help btw
