fuck vtec if your boosting it then port the fuck out of it and some big cams

 

The b20 is just a bored out b18 block. Because of the 84 mm bore on the b20, it will make a little more power(displacement). As far as boosting on a stock block, the b18 is much better than the b20. The sleeves on the b20 are really thin. I havent seen too many stock b20 blocks last long under boost.

 

as for the vtec head, id say def go with a vtec head...
i mean the ability to rev out to say 9k rpm can help when running a larger turbo that flows more air more effiecnetly at any given boost level...
so with that said..
im no honda god, but i know enough about them to suggest an LS/vtec setup with a t3/t67 (sold by full-race), at about 8-10psi reving to 9k having fun with about 300+whp on the daily.
how long will the stock internals last at 300-350whp? eh, try it out, and over time start buying parts for a built setup

 

Just cause you have a vtec head doesn't mean you can spin the shit out of it. The LS crank and b20 cranks aren't balanced as well as a GSR, b16 or type r motors. That's one main reason you can't take them to 9k like others. Put a vtec head and take it to 8000-8200 safely. Too many variables in every setup. Look at what your final goal is and build it from there.

 

If I remember correctly, there are no block girdles on the b18 and b20 either.

 

id give my left arm to rev to 8200! lol
7k sucks...
lots of power can be made over a 1000 rpm range.

 

LOL. 9k+ feels good.

 

till a rod pokes its head out the block....



i would rather make torque at 2500 then hp at 9000. less of a chance of shit going boom.

 

Build the motor and you should have no problem.

 

actually...
torque down low kills a motor faster than HP up high...
in all honesty, monster torque kills...
for us 4 banger guys it does.