Quote:
Originally posted by Hyper92GT:
Unit i disagree about the fuel system. All he needs is a larger pump maybe a 190lph. I'm running stock injectors, maybe I could benefit a bit from 24lbers but not by much, and bigger injectors are definitly not on the top of the proirity list if its NA(under 350hp). You are right it is the small stuff that makes all the difference..pay attention to it.
|
While perfectly functioning 19lb injectors will retain stock injection cycle qualities for 350hp N/A at a tick over 60psi (upper limit of most AFPR's), start throwing in a cam that likes extra fuel, and 13 year old injectors and you're running on the ragged edge. The TFS combo suggested should make 350hp pretty easy with proper tuning. I would honestly say your car is probably being held back by using the 19lbers as you are at about 346hp at the flywheel with Stage III TFS heads. I would have expected higher hp levels with a stage III job to them, but really, you can't get much higher than you are with 19lbers. The computer has some ability to compensate with injector cycles, but pushing the fuel system is never a good idea in my opinion. Why spend $2500 building an engine only to skimp on a $200 part and burn it down? Again, it's just my opinion.
I forgot about the fuel pump (he'll need that in either case), a 155 will do just fine.