Quote Originally Posted by -S Double C-
how many of the sleeves did you split? SEVEN on here said no b or d series can run more then 11lbs on stock sleeves quoted from his race shop or the sleeves will split!
i've had a few b-series stock sleeves 500whp +/- and d-series 300-400whp. with the exception of b20 i would rate b/d series sleeves easy at 400 and i used to say 500, but the longevity at 500 is somewhat questionable.

maybe he meant stock internals (pistons/rods). depending on the turbo/flow 11psi could be a reliability estimate he was making or talking about the stock mapsensor. certainly if you push more than 11psi through the stock mapsensor that's only been tuned to 11psi could cause a sleeve to go if you push 17psi at fuel and timing of 11psi (way too lean and way to much advance).