So I currently have a JDM B20b mated with a USDM GSR Head. Mostly stock, G.E. kit for the conversion.

Before I dive feet first into building the B20VTEC up (my ending goal of 250 streetable WHP N/A) I was thinking about building it up for forced induction. So I'm reaching out to the Gurus on this one.

What Superchargers are avaiable for my setup? I drove a JRSC LS and it moved niiice.

How much Boost would you recomend without resleeving the block? 10psi?

Would it make more sense to SC or T? I lean towards SC because I'm trying to build a great in town monster with lots of low end power, but I've always been drawn to turbo cars too.

What should I upgrade? I know the B20 has weak sleeves, is that something that could be easily upgraded? I hear the pistons are not all that great either.

Any and all information would be really appreciated, thanks guys!

Here is an old picture of my motor. Slight changes since this pic (VC painted, Spark Plug cover, etc)

 

u can use the GSR JRSC. you already have the B20 pulley so you have the big boost pulley for the setup.

 

turbo it hands down

 

Think so? I was looking at some prices of the available superchargers, and they are way over priced!

3,000 dollars for a SC, you could have a nice Turbo set up for that, AND be able to adjust boost according to the situation.

So I guess I've set my mind on going Turbo. Any advice from people with expierence with B20s and Boost?

 

i know of all motor b20 vtecs that crack stock bore sleeves, numerous.

 

im running a b20vtec turbo and i love its stock bottom end and stock head only thing it has is arp head studs and cometic headgasket what are your power goals ( i might have missed them when i was reading) but if your wanting somthing around 300 to 350 i wouldnt worry about b20 sleeves as long as you have a good tune you will love the b20vtec turbo oh iv been at 284whp for 5 months and i beat the hell out of it and everything is still good 200 across the board checked yesterday

 

the walls are thin, yes, but I would be more concerned about the tune. a good conservative tune will make all the difference in keeping the motor together.