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Cool know the black one but wasn't sure about the breather and bov return

Mine has a blitz bov or dump valve close to the throttle plate, is that not standard or bov comes with these cars ?

The return pipe is blanked off so guess it may be it was used and not it no longer it ??

Can you block both of those pipes and remove them ?

Mine has a bov or dump valve on the

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So does r34 have bov from manufacture ?

If so is it the one just before the throttle plate as mine was changed to blitz

If above is correct thej why do they have the turbo return pipe close to intake which is blocked off? Can one buy a silicone and remove that 2 pipe ( metal ones?)

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The BOV return needs to be close to the turbo inlet to stop reversion. They blocked it off so the turbo doesn't suck unfiltered air once the atmo BOV was fitted.

Silicone intakes are bloody stupid if that's what you mean, they suck shut when they get hot as the turbo generates a lot of vacuum.

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I am failing to understand the point of it

If it is close to intake and the air returns when throttle is closed, the box close to throttle plate releases that air so what is this for ?

Even if air goes there it is trapped, right?

I am sorry if this sounds stupid but don't get it

Curious as to how it works

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The factory BOV releases trapped pressure in the intake and releases it in front of the turbo so it goes around and around. But this aspect of the functionality doesn't really matter, because the reality of the situation is that the factory BOV is not really a BOV. Calling it a BOV is a lazy shorthand. It is really a compressor bypass valve, and what it does it it opens when the engine is under vacuum to allow air to flow direct from the inlet to the engine without having to pass through the turbo. Thus unloading the turbo and allowing it to spool faster.

Simples.

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ok , I have been reading around and know why people are saying to put the original or at least recirculating valve back but i love the sound of the blow off

I know this means richer engine but how much ?

if I want to keep maf , can i relocate maf close to intake or is that silly idea? no one has ever done this and my question would be why not just relocate it ?

sorry if this sounds daft but not sure really

Edited by stranger12
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