Interesting! First Dyno picks I've seen where it it is not tires on a roller doing the dyno!

Yeah, for me too, but this in a way is arguably more precise b/c it takes away factors like tire diameter and wheel weight. It's also safer, requiring no tie downs and no chance of the ties breaking and the car being sling shot. However, can a car dyno'd on this dyno be compared directly with one on a roller (apples to apples)? It'd be interesting to see what peak results are like at sea level. This is a 4WD dyno...you can imagine what it looks like with all 4 wheels hooked up.

No they can't be compared apples to apples. This one is much more "real-world". My whp on a dyno-tune (mustang) dyno was 313. I believe my numbers are more in line with yours from Cam's machine. But, I've gotten into lots of arguements about this and that's why I'll never post any of my results.

Interesting