This might be considered a dumb question but I'll risk that.

If there is so much riding on this testing and so much effort being put into it, why screw around w/ a chassi dyno? Although engine dynos are harder to get set up initially, they have much better ability to provide consistant numbers because of the environmental controls they can provide.

Get the SIR worked out on the engine dyno where its easy to make the changes, then do some pulls on different chassi dynos to show driveline losses & differences between dynos.

You can test forever, but if you don't cmpare apples to apples you are wasting your time.

Tell me where am I wrong in this idea.

Matt [/b]
Your not wrong Matt. That would be a perfect solution in a perfect world. It just may not be practical at this point.

AB