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Old 06-14-2011, 10:45 PM   #4
cre

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Quote:
Originally Posted by ksd9000 View Post
Its the stock bypass valve. And the IC rubber piping is surprisingly still soft and pliable. Plus I cleaned all the piping out thoroughly before reassembly.
Pliable or not it shouldn't even be coming off at 14+psi. Something's wrong with it, the clamp or your arm strength.

Quote:
Originally Posted by ksd9000 View Post
Applying vacuum at idle should make the valve open and cause the engine to stumble correct?
No. the valve dumps back into the intake AFTER the KVAFM, so the air is metered and accounted for.
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