Reply to "ZF Losses"

It does seem that 75 to 80 hp is a high number. Perhaps it also accounts for the air filter, higher engine bay temp and full muffler system often not included on a bench dyno.

I can turn my ZF by hand; heck, out of the car, my drill would turn it. I certainly think my 5 hp lawn mower could spool it up pretty nicely, although I admit I've never tried. :^)

I recognize that at higher RPM, it would experience higher frictional losses. It just seems that the figure is overstated. I owned two opels that had 100 hp engines. I don't think 3/4 of their power would have been lost to the ZF. Just doesn't pass the sniff test.

JT