View Single Post
Old 05-27-2009, 03:00 PM   #72
Drives: 2003 Cobra Convertible
Join Date: Feb 2009
Location: CA
Posts: 2,925
Originally Posted by MadMaxx View Post
306*.82 (which is 18% loss, ) = 249.28

Within ~3hp of average loss on a automatic, which is 18%. Humidity, dyno type and the age of the engine *DO* play a large role. Also, the super-rich condition of the run doesn't help the total numbers either. The ECU may still be learning, so again...take everything w/ a grain of salt.

Just so we're clear, the caddy 261rwhp mark was done through a manual on a dynajet if memory serves

Anyone who claims they dyno'd 276rwhp (That is 8% driveline loss...pretty much a miracle) on an engine rated at 300bhp is either:

1) lying
2) had a dyno operator who didn't know what they were doing

The 4.6 in the mustang is not SAE Certified, so it is possible to be underrated some.
THE EVIL TW1N is offline   Reply With Quote