Hi guys , could you please advise me the best blow off for stock 9 turbo?

i had tial bov but it worked bad
when i kept my leg on boost 1-1.3 bar (smoothly) my car twitched and i heard intermittent noise from my intake

the only way to solve this problem was to press the gas sharply and to the end but this is not comfortable ...

 

Stock

 

OEM, rerouted, if still on a MAF

 

Cant go wrong with oem metal valve if stock or moderate boost. I run a forge rs recirculated and I like it. But do your car a favor if your still on maf recirculate the bov it will thank you

 

as i understand oem bov cannot mange with boost 2-2.2 bar ( maf)
is it possible to install aftermarket bov with more strong spring ?
am i right if recirculated bov works true rather than in atmosphere ?

 

Yes oem will leak at 2.2 bar, there is a few bov's that people have success with I really like my forge rs it has a adjustable spring tension and recirculated like oem holds 30+psi even on low spring tension giving it better drivability.

 

My car ran 30psi with a stock 9 bov crushed a bit. I would only run the stock BOV on a stock turbo for best drivability.

 

My car peaks 30psi in "fun" mode. The DV valve works fine (also crushed a bit). No need to go aftermarket.

 

Forge rs works like stock bov? To intake?

is it possible to buy strong spring for stock (rs) bov? I need to keep 2-2.2 bar on stock turbo without any problems as it was with tial bov (jerking )

 

Evo 9 bov, slightly crushed, “Gus mod,” at 27psi.

“Gus Mod” thread: https://www.evolutionm.net/forums/ev...-mr-bov-2.html