I'm just wondering how much psi (and what turbo) you guys out there with b20s are pushing? I just blew my b18c1 piston/rod motor and i'll be using a b20-vtec for a while until I can get my old block sleeved. I will be pushing 9psi stock spring with a ramhorn and sc-61 T4 . Too much for the sleeves or ??? I would just be NA but I don't have any of the parts anymore.

 

9psi with a good tune should be fine, i wouldnt beat it up to much, if your not balancing the crank then dont rev it to high. i know plenty of poeple rev lsvtecs really high but the b20 and ls cranks arent as balanced as a gsr or b16 crank. good luck

 

You better good a really solid tune 9psi with an sc61 is starting too push a stock b20. Watch the revs too keep her together longer and the timing. they wont tolerate too much stress before they snap.

 

up for any expirience