Dyno FAQs

Find answers to our most frequently asked questions below. If you can't find the answer you're looking for, then just fill in the form at the bottom of the page and we'll do our best to help! We usually reply to questions within 1-2 business days.

Items	Rating	Hits
Are hub-type dynamometers more accurate because they remove the tyres, which are non-repeatable and inconsistent?		2664
As far as the aero factor goes, is there any correlation to the coefficient of drag for a vehicle? For example, my car is a 0.36, whereas a BMW 3-series is a 0.28.		767
Can I test automatic transmission vehicles on a dreamscience Dynamometer?		4947
Can my car come off of a roller dyno and crash?		3291
Do hub-type dynamometers offer more accuracy because they can read small changes in output?		3559
How does wheel torque compare to engine torque?		1097
If an Inertial Dynamometer doesn’t allow for steady state engine tuning, why use an inertial dynamometer?		912
Is an inertia dynamometer more repeatable then an eddy current dynamometer (or vice versa)?		1019
We ran a test for my car at 3500lbs, which is the approximate weight of the vehicle with me in it + 1/2 a tank of petrol. Should we have used the curb weight instead?		1912
What does Steady State mean, and what type of Power Absorber is right for my application?		1641