I’m planning a b20b build for the near future I will be matching it it with a b18c1 tranny or the b16 sir tranny which ever I can find with lsd for a good price. My question is will I need to do internals if I plan on running boost? I want to get about 250-350hp 200-300tq out of it. I also don’t want to compromise durability. I want a nice amount of power but it will be an everyday driver. This is a budget build as well so any suggestions or tips for a strong 250-350hp, 200-300tq b20 will be greatly appreciated. I would like to stay in the range of 8-10 lbs of boost with a 12-14lbs temporary boost setting. I don’t claim to know much about boost so don’t jump on me if my estimates are off.

 

you should be ok with a b20 around 250-300. i would recommend acl bearings and arp rods bolts as the stock ones are weak and stock bearings suck for b20's. as far as durability, good tune cause the stock walls are thin and have the tendency to crack with higher rpm or boost.

 

Bump!