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Old 08-28-2009, 11:55 AM   #45
boostedyards86
 
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Drives: Cummins 3500
Join Date: Jul 2009
Location: Pgh PA
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Quote:
Originally Posted by Dragoneye View Post
I would have to guess that the single biggest factor is compression ratio. The LS3's is 10.7:1, and the LS9/LSA are in the 9.1:1 range.
agreed on this. its all about the compression ratio really. 9.1:1 is a very safe CR for s/c's meanwhile 10.7:1 is pretty high for anything over say 10psi. And imo thats pushing it.
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