BOV Suggestions for Draw Thru

[niks325i]

I need a new BOV. What's the best BOV or recirculating valve for a draw thru system?

Nik

[mike radowski]

I like the Tial QR design, however we have not used one since all of our cars are blow through.

[TechnoM]

I like the Tial QR design, however we have not used one since all of our cars are blow through.
this is what I ran on my last set up which was drawthrough.
Worked very well :buttrock

[JesterMX6]

forge makes a great diverter valve. and its affordable too.

also, it is possible to use a VTA style valve but you'll run rich between shifts.

[Fender13Bender]

I'm using an HKS BOV non recirculating on a draw through tune.

[JesterMX6]

not on a bmw, but thats what i'm using on a draw through setup on my mazda.

[niks325i]

Thx for responses. I need to change mine up. Right now it's not recirculating. It's just vented to the atmosphere. When it idles the valve in it flutters and it doesn't run right. It also wants to stall on shifts. I think a better BOV like the Tial QR or similar, plumbed to recirculate, should fix that issue. If I disconnect the current BOV and plug the line, it runs much better.

Nik

[JesterMX6]

that means your current valve isn't shutting quick enough (or maybe not shutting at all on idle)

my HKS SSQV closes much quicker than the RFL i had prior and solved all of my stalling issues on my mazda. the proper solution though is to recirculate. I'm just a ricer and like the sound of VTA

[niks325i]

I don't think it shutting at all unless it's WOT. It's one of those Aussie ones. I think it is the weak link in my setup.

Nik