Thread: Maximum compression with a turbo
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  #65  
Old 04-17-2014, 07:46 PM
73 TRANSAM 73 TRANSAM is offline
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Join Date: Jun 2008
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I think 4.25 bore is a good start. That is what I'm building with a PT 91.5 turbo.Rodney Butler has a 4.25 X 4.25 combo.

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