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Blow Off Valves on R33 GTS-T


terry.m
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  • 5 months later...

when on track and wot I get a rather high pitched pschht.. I have the stock bov and my fmic isnt huge but it is free flowing. meh. is pretty much non existent to anyone not in the cabin any other time, basically very quiet on light throttle ie street driving.

forgot to mention that my return piping is red rubber.. red is better!

Edited by gts-4 dreamer
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  • 3 years later...

In regards to what JiVE said:

"And if your after the 'flutter' sound this can also be acheived through the stock bov. Just get a POD and pull the vacum hose out of the BOV. Make sure you block it off real good however, or you will stall."

Have any of you guys actually done that? And what is it about that that would flutter? I've heard of the fluttering before, but i don't know what causes it.

And what sort of effect would this have on driving and safety of my engine and parts?

Sorry to bring up an old thread, but was this ever clarified?

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No no no

This will do the complete opposite to whats good

Will open and leak boost when you up it. It will flutter on boost levels where the spring tension is not overcome yes, but you will loose lots of power when it has enough boost to over come the spring

Think about the purpose of the vac line. Provides vac on closed throttle conditions and pressure when boosting to keep the valve closed.

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  • 1 year later...

Quick question;

I recently upgraded my inlet pipe(stock rubber) to an aluminum pbm inlet pipe .( for better breathing) . Doing so I had to delete a metal pipe that recirculates air from my bov back to my intake /inlet pipe. Bov is now releasing to atmosphere causing my rpms to crumble and engine almost wants to die off when I rev it. But idle is smooth on its own unless I rev it .i can drive it but when I come to a stop it wants to die off but it will fight on its own to stay on ,it just ruff idles for a bit and goes to steady idle after a sec or two.. By the way my stock bov is pretty loud for being oem as for this topic...

to my understanding this engine was built to reserculate the bov air back to the engine ... . My question is...is there a way to trick my engine/ ecu to running normal as if the bov air was normally recirculating back to my engine or do I have to get a tune to adjust the new setting ?

Edited by ChEwDog
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