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Old 05-16-2009, 06:59 PM   #56
Hennessey Performance
 
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Drives: THE EXORCIST
Join Date: May 2009
Location: Sealy, TX
Posts: 388
I will guess that the 6-speed will put down more power to the rear wheels compared to the auto. So far we have only tested the 6-speed. However, I do know that on the 2009 Cadillac CTS-V, the 6-speed puts down about 20 rw hp more than the auto. Also, we do all of our dyno pulls on a cold motor. That way all of our pulls are compared under the same conditions. Other shops may post their numbers on heat-soaked motors for which heat-soak can account for a 20-30 rw hp difference.
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