Dozer Man
ArboristSite Operative
Bad comparison
After rereading what I wrote last night, using a snowmobile as a comparison was a bad idea. The more I thought about it, and after some sleep finally, a snowmobile won't go unless the engine rpm is above the clutch engagement speed.
You're absolutely right about the small engine governer though, it will automaticaly increase throttle under load to maintain its rpm.
The bigger problem would be trying to run the engine right on the clutch engagement speed. I've tried all different throttle settings. And after hearing about the problems others have had, I just decided the lowest setting was the best. I'm guessing that 2500-2600rpm is where I've been running. That's just enough rpm where the engine and clutch seem to smooth out. But that's still better than 450 flywheel rpm. Compared to your J model running at around 300rpm, imho that is too much difference. The speedpro is running as slow as it will go, and the flywheels are still way too fast. If someone runs these things at WOT, which someone said these engines are revving clear up to 3900rpm, then the flywheels are cranking 700+rpm!!! I've cranked this thing up that fast a couple of times, it will actually lift smaller rounds off the cradle as it splits them. That kind of ram speed isn't necessary for any kinetic splitter. It just seemed destructive to me.
These small gas engines have a governor, that increases throttle when a load is applied. So that should not be a problem.
Also agree with what Phil said, a 3-4 hp gas motor is all that's needed with this type of machine. A 1 hp electric motor will run one...
After rereading what I wrote last night, using a snowmobile as a comparison was a bad idea. The more I thought about it, and after some sleep finally, a snowmobile won't go unless the engine rpm is above the clutch engagement speed.
You're absolutely right about the small engine governer though, it will automaticaly increase throttle under load to maintain its rpm.
The bigger problem would be trying to run the engine right on the clutch engagement speed. I've tried all different throttle settings. And after hearing about the problems others have had, I just decided the lowest setting was the best. I'm guessing that 2500-2600rpm is where I've been running. That's just enough rpm where the engine and clutch seem to smooth out. But that's still better than 450 flywheel rpm. Compared to your J model running at around 300rpm, imho that is too much difference. The speedpro is running as slow as it will go, and the flywheels are still way too fast. If someone runs these things at WOT, which someone said these engines are revving clear up to 3900rpm, then the flywheels are cranking 700+rpm!!! I've cranked this thing up that fast a couple of times, it will actually lift smaller rounds off the cradle as it splits them. That kind of ram speed isn't necessary for any kinetic splitter. It just seemed destructive to me.
Last edited: