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Old 04-11-2012, 01:12 AM   #19
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Drives: 2018 Silverado
Join Date: Oct 2008
Location: Conroe, TX
Posts: 31,977
Originally Posted by SUX2BU View Post
12-13% is what regular M6 SS have for drive train loss since they dyno about high 360s low 370s. I think 580 hp is pretty accurate.
The autos are usually about 40 rwhp lower, so I'm guesstimating they an auto ZL1 would dyno about 460 ish.
There won't be 40 rwhp difference on the ZL1 (More like 20)

The LSA flywheel hp is the same 580 for Auto or Manual where as the L99 is 26hp less than the LS3 right off the bat.
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