Thread: 3.91 Gears adds to dyno or losses? and boost loss whre to look?
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Old 11-02-2015, 12:11 PM   #7
JANNETTYRACING

 
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Quote:
Originally Posted by Reelgrinder View Post
Boost was 7 or 8 psi in lower rpm then upward rpm it was abt 11.. now down low its 6 or 7 and 8 in upper rpm coming on late.
Belt slip is most likely.


Ted.
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