Hey all. I just happened to notice the small article about adjustable fuel pressure for TPI in the engine FAQ's. Does anybody have any proven gains from this mod on our TBI's? If we can get those kinds of gains, I'm definitely messing with mine this weekend!!

 

We definately wont get the same gains as the TPI cause the TBI is a low pressure system, i think from 9-12psi stock. There is a performance increase though. I made my FPR adjustable, turned it up alittle and i felt an increase in power, especially top end. HP wise i have no idea, but if you have alot of mods this is a good idea.

 

'specially if you have headers and intake at least.

 

And with the now huge popularity of the LT1 cam, along with the free winALDL... there's no reason not to be playing with your fuel pressure. Thats definatlly going to get done this summer... when I aucutally have my car - damn you school.

 

heh- i know that story
i have a 5.7L tho- i hear the lt1 cam is great on th 305, is it as effective with a 350? Do you have to do any chip mods or will it work with the stock prom? I'm just getting into DIY prom stuff- don't wanna put the cart before the horse just yet