hotrod388

I have a stock crank and stock rods with Mahle forged pistons. I bought a Procharger for my T/A and just want some input on what PSI i can get away with for a little while till i can build a stroker. It has 243"s CNC'd compression is around 11.1. I have a D1 with a 4.00 and a 7.65 on the crank which should be around 10psi from what i have seen. Is it too much for the rods???

hotrod388

Forgot to say its a Ls1 347.

o2camaross

iTrader: (2)

prolly 900 rwhp worth as long as the tune and fuel are right and the pistons should hold up

hotrod388

I just read a post this morning about 16 psi smashing some rods just thought I'd ask.

o2camaross

iTrader: (2)

well boost is all relevant to the setup, especially the turbo. On of the guys on PT.net was running a MP76 on his 4.8 at 18-19psi and 35 shot of nitrous then swapped to a bigger turbo and is making more power on 15psi boost alone. Ive seen guys run 30 psi on a stock shortblock but with a bigger turbo Im sure the same power can be made at a lower psi

hotrod388

I have a D1 Procharger.

got-a-ls1

iTrader: (12)

i estimate im around ~700 rwhp and on a 2000 stock 5.3 theyre holding strong.

denmah

iTrader: (2)

probably 2500psi

hotrod388

2500 psi! good answer. Never really looked at it like that!