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> What is the VTV?
post May 4, 2007 - 4:15 PM
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WALKER



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So I am thinking of using the stock BPV for my 5SFTE build, however I keep reading about the VTV and don't know what it is?

What exactly is it? I have also read that it is required in order to make the BPV work, would that be the same case if I were to use the stock BPV on the 5SFTE? Do I need to get the VTV as well as the BPV?

This post has been edited by WALKER: May 31, 2007 - 12:52 PM


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post May 4, 2007 - 7:32 PM
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Gary



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I guess you are talking about the MR2 BPV.
VTV = Vacuum transfer valve
It is the white plastic thingy, check-valve shape, on the side of the MR2 BPV.
However, it is NOT a check valve.
It lets air flow freely from one side to the other.
However, it slowly releases the pressure from the other side back once the pressure changes.

If you don't have one, the MR2 BPV will not operate correctly.
The VTV is notorious to break easily.
When you buy a used BPV, make sure it comes with one.
Toyota sell the VTV separately from the BPV and will cost you ~$40.

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