[edcmat-l1]

Kevin's car/motor came out to about 13% drivetrain loss.

One motor we did that went in an auto GTO, was about 15% loss with the conveter locked.

I'm not a believer in a set % loss. Although it takes XX amount to drive a certain drivetrain, and that the amount goes up with speed, it cannot be a linear percentage. In other words, it can't take 20 hp to turn at 10 mph, but 200 to turn it at 100 mph, aerodynamics aside. We're talking drivetrain losses only.

The difference in loss from auto to manual, with a locked converter, is negligible. We see very similar numbers with the locked converters compared to clutches. They're a little lower, but not a bunch. Unlocked converters, on the other hand, can absorb anywhere from an additional 10 hp to an additional 50 hp.