Originally Posted by dynamicS
You know the only other external input that's missing while doing a dyno run, is that there is no acceleration forces acting on the car... This could be effecting the cars Onboard computer somehow, by making it think that it's driving on a wet road surface while spinning it's wheels, and thus not allowing optimized mapping???
I have no idea how closely related the ECU is influenced by the lateral and longitudinal accelerometers within the T/C unit??? Just a thought.
Well, it seems we're all still pissing in the dark. At least we now know that full RPM can be achieved on a front roller powered AWD dyno. Thank you MMZ ! Although something is still amiss with a the #'s as we all know.
I know I can get to 5,000 RPM on a rear wheel dyno with the removal of certain fuses, then the engine mysteriously cuts-out (same with Woody). I think we'll eventually get down to the bottom of this, with a few more experiments.
When I return to LA, I'll see if I can track down a Mustang AWD powered dyno and see if it will allow me to get to redline also...
I'm wondering if the AWD dyno reads the the power being delivered to the front wheels and factors that in to the overall HP/TQ readings. And since our cars are only rear drive, it mathematically adjusts the readings.
For example; if you put a AWD 100 hp car on the AWD dyno and all four wheels are putting power to the front and rear rollers, it would read 100hp. But, if you put a 100 hp rear wheel drive car on the AWD dyno and it senses that there is no power being delivered to the front wheels, would it think there is a 50% power loss and read 50 hp ?
It sounds theoretically possible. This could explain MMZ's #'s... Because in my opinion, they are about 50% less than what they should be for a SRT6.