Agreed on all accounts. Definitely not a shift spike, I was driving the truck myself. The #'s are great, but you and I both know they're not right.
I've been meaning to dyno again. I missed the chance to do this over memorial weekend because the truck was in the shop for a problem I've been having for months. I can't wait to dyno again. These auto's make it hard to build good boost on the dyno without downshifting like a manual or the lock out found on the auto allisons.
The thing about this dyno run was the dodge and chevy guys were complaining their numbers were low, and when I and the other 6.0 dynoed stock tuning, we put down 270hp at the wheels, which seems dead on. I'm still convinced the 466 is wrong though... unless I have a FREAK truck. The other 6.0 (an 04 truck) was running a bullydog triple downloader and he put down 430's, which I dont believe either.
Once I get the truck back... EGR cooler coming off and...:nos: going on...