Do you guys think that 185-200 crank hp is possible on an N.A. b20 daily driven. My plans are Crower cams 402s or 403s not sure yet. If I get 403s I'll need springs & retainers. Skunk 2 manifold, mild P&Polish Fuel pr. reg. and Cold Air Intake exhaust + headers. Redline 7500.

 

with more compression and some dyno time, 185-200 hp at the crank should be doable

 

easily reachable.

like Snoopy said, raise your c/r, get the 403's, a header and catback exhaust you should have absolutely no problem reaching that goal.

you dont need much fancy. i believe Arias makes some 10.4:1 pistons for the b20's. go with the 403's plus crower spring kit, its worth it. that should do it, if not, you should be damn close with a good header and exhaust.

 

Eh, no. A vtec head would be much easier. Bolt on a b16 or gsr and you are easily at 160/170+. A lot more simple then completely opening the block.

 

not necessarily with a b20.... the pistons need to be gouged for valve reliefs or they will hit.

not to mention, it isnt as simple as "bolting" the vtec head on to the block.

if you wanna take the time, spend the money, and do it right, a b20 vtec will yeild far more power but i wouldnt say it is easier than swappin the pistons out and putting some beefier cams.

 

Bump

 

I'd push more for 404's for that goal. You need the spring kit anyway for the 403's, you might as well step up to 404's. That, plus some cheap used B16A pistons, I/H/E, an S-AFC and some dyno time should get you close enough.

 

how is he going to use b16 pistons in a b20?? arent those pistons smaller, like for a 81mm bore where as the b20 has a 84mm bore right?? Anyhow if you go with high comp and 404 cams with some tuning i think you can be there.

 

correct

 

You can't. I was really drunk and thinking B18A for some reason. Duh moment, if you will. :cheers: