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At what boost pressure do Z6 intake valves leak?

Old 05-31-2011, 09:21 PM
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Default At what boost pressure do Z6 intake valves leak?

A stock valvetrain D16Z6, at what boost pressure do intake valves begin to leak?

What springs are recommended for boosted singles to prevent this?

Thanks
Adam
Old 06-02-2011, 08:38 AM
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Default Re: At what boost pressure do Z6 intake valves leak?

ive ran 20psi on stock springs on a y8 head without any issues. the motor also saw 8200rpm on the stock springs/cam/valves/retainers.
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