Yeah, normally all cars experience ABOUT 25% HP loss through the tranny. Not sure what the loss ratio is for torque, but it would stand to reason it's very close to 25%.

That loss is not just for F/F cars. My buddy's 03 (?) Z06 is rated 405 HP at the crank. When he put his stock Z06 on the Dyno, he only got an adjusted 305 WHP. Seems the tranny is the major killer of horse and torque.

I wish you all the best luck in stalking 400 FWHP, I would love to see it done.