Quote:
|
Originally Posted by JL8Jeff
Sounds like you need the vacuum reference fuel pressure regulator that automatically adjusts the pressure based on vacuum.
|
NAH. I tried that years ago and so did a few of my friends. None of us liked it. The only time you need to vac reference the pressure regulator is when the injectors see the manifold vacuum. In our case the injectors are always seeing atmosphere (above the throttle body). When you install a vac.ref FPR it helps ONLY if you don't have a good tune. As it stands Matt's got a decent tune but I can't command the injectors to stay open any longer. They're stuck open from like 3500rpm and up (static) meaning he's lean up top where he could be making some monsterous power. The only tuning we did was remove a couple degrees and add a few. Adding a few did appear to make a difference since with a hot engine he ran a better ET... lean engines need more timing... so again, he NEEDS to increase the fuel pressure if he wants to make more power. Right now it's just a torque monster when it could be a torque and horsepower monster.
__________________
, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue
