Dragon Fire radial engine pulling tractor - video

Dragon Fire pulling tractor with a Zvezda 503 42-cylinder radial engine we've featured a while back.

https://www.youtube.com/watch?v=if7d14JJEfM


Previously:

https://www.homemadetools.net/forum/...808#post167475
https://www.homemadetools.net/forum/...596#post123275
https://www.homemadetools.net/forum/...697#post167169
https://www.homemadetools.net/forum/...141#post165155
https://www.homemadetools.net/forum/...6993#post84808

A total armchair observation: over the years I have noticed that tire pressure may play a outsized role in the performance of wide tire high horsepower pullers. If you notice the tires have a "nice" wrinkle to them. Often pullers with no or little wrinkle spin out quickly.

That throttle valve is unreal.

9000 hp walked away with it