DJ_Skyhawk

Hello, I'm curious about something, why is it when I set my BOV to the lowest setting on my GReddy turbo setup and rev the engine the rpms drop down to almost 0 and sometimes the motor actually stalls out for no reason, however I put my BOV to almost the hardest setting and it dosent happen anymore, however I'm not running enough psi of boost to really hear any sound at that level I really miss the whistle sound of my Type-S BOV can someone please help.

MazdaManiac

iTrader: (3)

Uh, because when its on the lowest setting, you are bleeding off more air and the MAF/PCM doesn't like it.

Recirculate.

chickenwafer

iTrader: (9)

On it's lowest setting the spring inside has no preload and it's bleeding off air.

Spoolin8

iTrader: (2)

like said above.... At idle on the lowest setting the BOV is leaking air into the "atmosphere" this is not being read and tuned for therefor the A/F ratios are thrown off, It takes a little bit to find the right balance on the BOV so its closed at idle but opens enough to prevent compressor surge. I have done several turbo setups on cars before and i find that on most i have to open up the BOV itself and cut the spring inside to get it just right.

MazdaManiac

iTrader: (3)

Or just use an HKS or Syncronic.

05rex8

iTrader: (7)

HKS ftw