illtres50

In my brief research into dynos I have seen reports that the hub is "more accurate" than the rolling dyno.

What experiences have you had?

JohnMorgan

iTrader: (6)

There's a good amount of truth to this. If you've ever seen HRE Wheels for example do a dyno run of (I believe it was a Camaro?) on the OEM wheels vs. their wheels, they were able to show a power increase while increasing contact patch. You can load or unload a rolling road dyno and play with the numbers that way. With the Dynapack being bolted right to the hubs, you're getting for the most part an unadultured number. Now this number will technically be to the hub since your wheels aren't on but a dyno is ideally used as a tool to measure differences between mods, tuning, and loss over age (given variables are the same).

lobuxracer

iTrader: (2)

Dynapack is a load cell. Dynojet is an inertia drum. Completely different concepts providing different results. It's hard to tune accurately with an inertial dyno. Easy with a load cell. Dynojet takes unsprung weight into consideration. Dynapack does not. Different methods of measuring, different results.