Ok so im putting together my b20 vtec turbo since my gsr threw a rod. I know b20 s have weak sleeves but also have one of the best tuners in Arizona tuning it. Im planing on pushing 10-13 psi on a garret. 57 trim. Now I know my gsr had the little black box in the back. My b20 block has nothing like that. So I am going to be buying a breather setup that mounts were my battery goes. Now for the valve cover is 2 ports enough or do I need 4? I was going to buy the bwr set up since its only 330 shipped. It has all the lines and fittings but its setup for only 2 ports on the valve cover. Or should I just buy a breather kit that has for the 4 ports on the valve cover. The 4 port kits are like 500 so im trying to save some money if possible by going with the bwr kit. Also is this breather setup over kill for my stock turbo b20? Thanks

 

2 10an fittings should be fine. I have really seen people use 4 fittings unless there pushing 400 plus.

 

Well this b20 is just to get me by for now. Im going to be building a stock sleeve piston rod ls engine and try to push 400-450. So that's another reason im buying a catchcan. Kinda want to have everything I need for the ls when it goes in. So will 4 -10 fitting be more suitable for 400you or will 2 of them still be fine?

 

you dont even need one...

 

So at what power range is one necessary?

 

2 ports on the vc will be fine. a vented can setup is always smart for any FI build.

that being said, i ran my stock gsr with stock pcv system and a filter on the vc for 3 years with no issues.

 

2 off the vc and 2 off the block is what im doing with my b20v-t