546 RWHP, and 512 torque....on 17 PSI?
Strange numbers. I made 580 wheel horse and 475 torque on 12 PSI Pump 93 octane, 16* timing. No intercooler, just water/alc injection. granted thats a 15% drivetrain loss through a 5-speed, versus a 18-20% for an auto. but thats still 660 Crank HP in my case and....645 crank with your combo.
Well, someone's numbers are "strange."
I gotta assume your's was done on a Dynojet, not a Mustang dyno, or you wouldn't even post the comparison. But even still, comparing different dynos on different days is like apples to oranges. I also know there is considerable debate, even amongst the Ford engineers I know, regarding the actual drive train loss comparison between the stick and automatic. Your TQ numbers seem a little small to me compared to your HP. Such a huge difference leads me to think, maybe there's something going on with the two dynos.. I dunno.
The other thing you failed to factor in regarding total crank HP, is that the more boost, the more compressed the air is, and the more HP it takes to turn the blower. I'm losing 40hp at the crank/wheels just turning the T-Trim. Your's could be more or less or the same - The T is more efficient than the S, but I'm pushing 5 more psi.
I'm not sure if your 580 was just a base tune to get the car on the street and work the kinks out, like mine was, or was a money shot. Was your engine broken in, or brand new? My HP will go up considerably after the engine has some hours on it, right now it's pretty tight.
Also, the car was dynoed with the same exhaust system I used for the N/A setup - 3" Kooks collectors into a 2.5" non-mandrel bent true duals system with a crummy X pipe. At the first turn from the collectors on both sides, the pipe is kinked down to maybe 1 7/8" , and at other turns, it's maybe 2". I'm sure that system is a cork to some degree.
By the time we get all the bugs out of her, and take her back to the dyno for the final tune, she will be sporting a new mandrel bent exhaust system, and the engine will have a few more hours, and that should help a bit.
But, assuming there really is a 34hp difference between us at the wheels, we musta done something right .... she crosses the finish line .3 of a second before your's does. Of course comparing different tracks on different days is like comparing different dynos. I know the Commerce track is considered to be a very slow track, I don't know where you ran the 11.6.