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Hey guys

Just a question out of curiosity.

Just for fun to see what it sounded like, I took off and blocked the vacuum line to the BOV to see what it noise would come out. But all i got was the standard gush noise through the pod filter. Last few cars i did this with I got the "fully sick VL turbo flutter" :P.

What does this actually mean? If there a leak or issue somewhere? Stupid topic, i know but got me wondering.

thanks!!

Removing the vacuum line will help keep the valve closed. Whether it leaks is another matter.

no the pressure in the intake pushes the valve open because it is greater then what's above it

Actually they're not that bad, a bit of molly lube on the stem of the valve helped my stock rb20 recirculation valve hold close to 30 psi

I've had a few, i noticed it on all. I tried a few things like what turbosmart suggest.

I am using an automatic, so it could be more pronounced because of this.

Removing the vacuum line will help keep the valve closed. Whether it leaks is another matter.

Nope. Boost pressure from the manifold helps keep it closed.

Removing the line makes it leak on boost, meaning the turbo has to work harder.

Oh shit I have, bruh youse need to take off ya stock bov, cut up your favourite aluminium can and make a blanking plate using that. Then drill two holes and sandwich it between your BOV and BOV 2x bolt flange.

Fully sick ulleh, dose for days and make betches drop their panties

no the pressure in the intake pushes the valve open because it is greater then what's above it

I understand what you're saying, but the vacuum created when the throttle plate closes acts against the spring in the valve to open it, remove the vacuum line and the spring pressure alone is enough to keep the valve closed, or should be.

When I replaced my turbo I made up a pvc plug and pressure tested the intake, after I lubed the stem it easily held 20 psi

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Edited by Missileman

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