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Rb30dett Gtr Bov Issue

James_03

By James_03,
in Engines & Forced Induction

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James_03 Mentor

James_03

Posted
Posted

Hey guys,

I have a rb30dett and recently last week went back to factory GTR re-circulation setup using standard gtr bov's.

The car is running great at the moment, but what seems to happen at around 15psi is the bov's sound like they vent on/off constantly very quickly. If you back off the throttle a bit it goes away, but starts up when you jump back on and keep it at around 15psi.

I searched before and noticed a couple of posts relating to "shuffle". Is this what you would classify as shuffle? I don't think it is but want to check.

I was going to install new vac lines to the bov's as I thought that the lines may be leaking at higher boost levels causing the on/off venting to happen.

At the moment there just running the factory gtr vac lines which are in good condition. Any thoughts guys?

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https://www.sau.com.au/forums/topic/272269-rb30dett-gtr-bov-issue/
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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Sounds like it could be shuffle/comp surge...

Hard to describe noises over the internet :)

Do you have a hard pipe kit?

Probably wouldnt hurt to swap out the VAC line mate, its a cheap and easy thing to do and eliminates that as a possibility.

Also are you sure the BOV's are in good nick? They might be failing as another idea.

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