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Old 09-18-2013, 05:46 PM   #30
jamesm
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Quote:
Originally Posted by No Limit Motorsport View Post
I am not here to argue it, nor do I have a mechanical or automotive engineering background to get into real specifics. However I have observed many turbocharged race cars that choose to not run a blow off valve for performance reasons. It was explained to me that it helps with response by keeping the pipes pressurized during gear changes.

I understand how a blow off valve functions.

I know Crawford doesn't run one on there time attack STI, or there turbo kits. A lot of rally cars don't run them, so on and so forth.

Here is a race car, no BOV
http://www.motoiq.com/MagazineArticl...-update-1.aspx
i can't say i've every heard of or seen the same, but i suppose in a racing application you wouldn't mind the potential for damage to the compressor wheel, so that wouldn't be an issue. i really can't fathom how stalling the compressor would help spool, but who knows? maybe it does...
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