+1, its a dynapack or whatever. it measures at the hubs with the wheels off. I think they consistently give 7-10% higher readings and can be setup to estimate crank HP. On the GTR boards someone called dynapack and showed them the printout and they said it was measuring at the hubs. I think it would be best to wait for confirmation.

 

was this on Shawn Church's dyno?

 

[QUOTE=s2kpdx01,Dec 17 2007, 08:37 AM]+1, its a dynapack or whatever.

 

Hub dyno's usually only have 5-7% drivetrain loss vs 12-15% [15-18% for awd applications] for a standard dyno measuring the force from the wheels instead of the hubs. 515-525 is probably more accurate than 550hp although if the awd system is relatively inefficient the higher figure could be more accurate although that's nearly impossible to determine by the individual car owner.

 

As long as the taillights and rear look good that's all one will be seeing anyway of these cars as they blow by.

 

This could explain its C6 z06 and 997TT-crushing performance numbers, despite having lesser power and more weight than either both of them.

 

magic Japanese pixie dust?!!? That and Chuck Norris semen.

 

Considering it's slower than (or the same as, best case) the Z06 and 911TT in a straight line, I'm not sure how "crushing" is an applicable term.

Regarding 'Ring times - there's more than just power to weight ratio at work.

 

Ok I take back "crushing." "Similar" numbers would be more like it.

 

What is the Z06 0-60 times? I know the 997TT is 3.6.

Imagine this is coming from two bagel sized IHI turbos. What would two larger variable geometry turbines would do? Scary.