Hewitt Inertia Dyno’s & Manufacturing

About us

Stan Hewitt's patented inertia dyno & dynamometer are the best small engine dyno on the market. Since 1999, Stan Hewitt’s inertia dyno & dynamometer has been a very highly accurate small-engine dyno on the market. We now have dynos in 9 countries (U.S., Canada, Australia, & New Zealand) and over 300+ in North America. We’ve built a dyno for about anything that races! We will work with you to provide an optimal inertia dyno solution. We offer axles, bearings, bushings, flywheel maintenance, and more. Precision in the shop takes seconds off the track. We are proudly represented around the world. Contact us today!