Originally Posted by StiRhino
You trust your non sleeved block at 28-30psi? To me your just asking for issues or unless you don't mind it not lasting long. I wouldn't trust my non sleeved block.
Why do you not trust stock sleeves at 28psi if you don't mind me asking?
My engine builder(Sean @ Vigilant Motorsports) would not tell me it is safe to run my block @ 28psi if he didn't trust the stock sleeves at those boost levels...
"Track Series" Shortblock:
28psi and 8500rpm limits
No worries or concerns when you find the right engine builder and tuner!