MUSTANGBRKR02

iTrader: (91)

Going with stock 5.3l dished pistons for now. What should ring gap be for 12+ lbs. of boost i have read so many contradicting things, but i am leaning towards .026 for top and .032 for the bottom.

Any thoughts?

Stock is .009 top and .017 second

pwrtrip75

iTrader: (8)

What are they stock? Mine has a stock bottom end and I run 15psi + a 50hp shot of spray. 3 years running strong.

JAX04

iTrader: (17)

Stock rods, pistons, and everything? 15psi and a 50 shot. thats awesome man.

MUSTANGBRKR02

iTrader: (91)

I can't seem to find it now. I will look it up tomorrow at work.

What does your WOT AFR look like? Are these drivers or track cars?

extremetoy

iTrader: (17)

does anyone make a forged piston for a 5.3l?

MUSTANGBRKR02

iTrader: (91)

I believe Wiseco.

pwrtrip75

iTrader: (8)

11.4-11.6:1 AFRs, Street car driven all over and raced on the weekends.

MUSTANGBRKR02

iTrader: (91)

Well i would say you have a good set up and tune.

The standard is .004Xbore size but with the extra heat of the turbo i would like to build in a little more room for them to move.