Shiv, have you had any problems with HKS SSQVs causing compressor surge at partial throttle in 6th gear? I have the XFlash on my evo 9, and it really bucks and flutters, and I think I might be damaging the turbo. Is there a way I can adjust it? Should I just dump the BOV completely? I am running 23 pounds of boost with my Profec Spec 2. Please Help!.

 

I'd get rid of it and put the stock valve back on. It'll hold boost just fine

Shiv

 

the evo XI's bov is great stock. there is no need to upgrade it.

 

I think any VTA bov for the most part will cause surge with partial throttle and release while in boost. But search evom.net and you'll find a slew of info.

 

junk that bov... you want a good one try forge's, no one seems to have a prob with them..
but they dont whistle... but that really doesnt matter..

 

I have the FORGE BOV (red spring) for 40K miles, no problems!!!

 

i also have a forge red spring with no issues.

 

Evo XI? haha...dang the X isnt even out yet...you must have friends in high places.

 

dont buy a forge bov, the stock ones on the 9s should be more then good enough. If anything buy a intake to satisfy the ricer in you; that way you can hear it blow-off (just get it tuned for that intake).

 

get rid of it, glad i did! Have one for sale with the matched upper i/c pipe! pm me