Ya, ya.. I know.. another blow off valve question from a n00b.

I was wondering what are negatives of running a blow off valve that vents 100% into the atmosphere. Noticeable poorer fuel economy? Noticeable decrease in performance? ??

I've always read and been told that a recirculating blow off valve is faster and makes the car run better, but do not lack enough actual experience with one to judge for myself.

So help me out please.

 

maybe this will help you a little. it has several opinions on both of these bov's. you will have to just make your own opinion. but the one thing to remember is that you can recircluate a open bov.

http://forums.nasioc.com/forums/arch.../t-302279.html

 

recirculating it does give you the best results. all venting it 100% into the atmosphere is going to do for you is make the sound very noticable

 

a BOV couses ou to lose hp and time when your boosting but is needed if you are not running a BB turbo

 

BB turbo?

 

"BB" = Ball Bearing.