Originally Posted by baseballdbk1
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!
If your looking for a 100k built motor yeah stock sleeve might not be the way to go lol but stock sleeves have been proven with good tuning to live well beyond 30 psi. All in the tuning and care you put into the setup. Mines seen 26-31 psi for maybe 15 miles. No issues.