Originally Posted by feets
You can usually expect to lose 20% going through an automatic transmission. 330hp -20% drivetrain loss = 264 hp.
Manual trannies generally fall between 10% and 15% loss.
That's what I always though the drivetrain loss was, but X'ed says different, I believe the auto is more efficient than 17%. Now maybe he is right, and your dynoing on an AWD dyno is creating more drivetrain loss by turning the front rollers, than that used on a 2WD dyno would put out. But then again chassis Dynos are never really that accurate compared to say an engine dyno.
Have you taken the SRT6 to a 1/4 mile track yet? Any numbers?