dyno

I know in my cobra from engine to rear tires there is about 15% power loss on dyno. Is it less in s gt40 because the trans is connected directly to tires? What is the average power loss from engine to tires? I have a CAV and going with one of the big boy $15k transaxles.

My car has a crate LS7 and a GM controller kit. It's never really run right, with a weird idle hanging problem -- it would hang at about 2000-2500 RPM on decel, then slowly lower itself to a normal idle of 800 in a minute or so. That made it hard to heel-and-toe and didn't make me look like the...