SkunT

as I Have learned. a b20 is nothing more than a bored B18. so you have paper thin cyl. walls. so no. I wouldnt run high boost. maybe 6psi at most.

HMT-Admin

maybe you didnt understand my post. B20 sleeves are monolithic design, 1 peice, any type of detonation the sleeves will crack from the inside out. So reguardless if you have forged pistons, big rods and a nice block guard the sleeves will crack. I had 12pins supporting my sleeves (called pin/post method) which is better than blockguards and it didnt even help. You can run about 8-10psi safely on a b20 with a conservitive timing map.

Trust me I know lots of guys who have broke sleeves in b20's. Its quite common for them to fail with fi applications.

jeff

HMT-Admin

b20 and b18 sleeves are nothing alike, b20's actually have very thick sleeves, but due to the weak design they are brittle as hell and crack.

XDEep

READ http://dwolsten.tripod.com/articles/jan96a.html
then obviously the tons of people with cracked sleeves.