An inertia dyno works by measuring the acceleration of a heavy drum. The more powerful the engine, the faster the acceleration will be. This is a very common form of dyno, and extremely simple in its operation. The main issue for a DIY’er is to get hold of a suitable drum. They typically weigh several hundred kilos.
YourDyno.com’s data instrumentation kit and software support inertia dynos.
Jostein on March 23, 2019
April 23, 2019 @ 2:55 am
How large or how heavy of a inertia drum would you need for a 100-125 hp or foot pounds motor?
Does it matter what size or shape (disc vs drum) or does the weight matter more?