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Blocked Bov And Still 'whooshing' Through Pod Filter

schnorky

By schnorky,
in Engines & Forced Induction

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schnorky Proficient

schnorky

Posted
Posted

Today I decided to swap my standard bov on my r33 to a greddy type s and found a dilemma..

The greddy type s is ment to have a loud laser sound that was achieved on my other turbo cars (r32,33x2)

The laser sound was a bit quiet and could still hear the "woosh" that the standard bov made out of the pod even though it's Not re-circulated back the the turbo intake..

So I decided to block the bov outlet with my hand, expecting to here compresser surge (fluttering) but to my shock could still hear the woosh out of the pod filter.

I scoped out the intake pipe and looks all good..

Why is it doing this ??!

schnorky Proficient

schnorky

Posted
  • Author
Posted

Doesn't feel dead or on it's way out?

Minimal shaft play running stock boost, no smoke or oil burning.

just wanting something different.. driving the car 2 hours a day the same sounds gets boring lol

Also running map sensor (microtech ecu) so doesn't stall like the guys running afms

Ben C34 Grand Master

Ben C34

Posted
Posted

Ok . Glad to hear it's a map ecu so you can play bov sound effect game without starting the next "car stalling or bogging down" thread!

Definitely seems odd the noise you are getting.... not sure what's going on there.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

A duck whistle should fix that, just glue it in place of the 'LASER'

I always wanted to know how a whoopie cushion would go if you chopped it up a little and plump it back under the passenger seat...

  • Like 1
Badgaz Experienced

Badgaz

Posted
Posted

I bought a greddy type rs bov and had troubles with it. i found that the diaphram assembly had creased in assembly and would open but no close properly...you need to tighten up the spring pressure quite a lot and check the bov to make sure the diaphram isn't getting trapped. i soaked mine for a while in olive oil to get the diaphram working again.

the wooshing sound was the bov actually leaking in my case....do you get any boost pressure when you hear the wooshing ?

Piggaz Grand Master

Piggaz

Posted
Posted

Today I decided to swap my standard bov on my r33 to a greddy type s and found a dilemma..

Sooooo put the one that works back on. The stock one had been doing a great job for the last 20 years, why change it?
  • 1 month later...
schnorky Proficient

schnorky

Posted
  • Author
Posted

Found the problem...

Finally got around to pulling the bumper and cooler off to find out there was a huge split in the standard cooler piping, right underneath the pod filter hence why the sound was coming from the pod even though I blocked the bov.

Now time for some boost ;)

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