Simplest DYNO for RC Engines! - Prony Brake Dynamometer!

JohnnyQ90
Oct 28, 2026

For this experiment, I'm using the Toyan FS-S100 4 stroke engine.
As I stated in my videos with the twin cylinder, I was interested in making a dynamometer to measure the output power of these little engines. One of the simplest ways to achieve that is to make a Prony Brake dynamometer. Basically, it's a clamp which holds the engine's shaft. The more it's tightened, the more it's been pushed on the scale by the engine's output shaft friction on the wood. This can be a lot of fun because we can test various engines with different fuels with or without mods.

➜Toyan FS-S100 engine: https://bit.ly/3sSpwZP
➜ Other Toyan Engines: https://bit.ly/30Z8NYr

➜Scale: https://ban.ggood.vip/Xki4
➜Banggood Spring New Arrivals: https://ban.ggood.vip/Xki3


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