Chainsaw Repair
Saws in Action - GTG Events Competitions - Janka Wood Hardness Scale - World Records - Firewood BTU Comparison Chart => Saws in Action => Topic started by: Cut4fun on April 12, 2011, 03:23:33 pm
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Wankel hotsaw being tested and run by Jason Wynyard.
http://www.youtube.com/watch?v=lbHhKQ31SyA
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They thought the Wankel was going to be the ulitimate engine .Used that engine in Mazdas,snowmobiles ,chainsaws and even a lawn mower .I think in a motorcycle or two also .
Problems. The rotor tip seals would fail and they drank gas like crazy .It might have worked out maybe using more modern components but I think they pretty much died 25-30 years ago as far as interest .
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Those Wankels sure do sound nice though. ;)
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Here is a Sachs Dolmar KMS-4. http://youtu.be/teEREL4BMGo
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The Wankels relied on speed to produce power as they were not noted for low end torque .Kind of like compairing a small block Chevy to a big block Ford in a manner of speaking .
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Wankel hotsaw testing just done.
http://www.youtube.com/watch?v=IPgJ6Cjv94I
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They're a neat idea, and may be the future, but the cost is 14,000$ for one, that's what I was told last fall at the Johnny Appleseed festival.
(http://i6.photobucket.com/albums/y244/CaleSigas/100_0179-1.jpg)
(http://i6.photobucket.com/albums/y244/CaleSigas/100_0178.jpg)
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They thought the Wankel was going to be the ulitimate engine .Used that engine in Mazdas,snowmobiles ,chainsaws and even a lawn mower .I think in a motorcycle or two also .
Problems. The rotor tip seals would fail and they drank gas like crazy .It might have worked out maybe using more modern components but I think they pretty much died 25-30 years ago as far as interest .
This is all tru (excuse me for my Englisch, I am from Holland). The rotor tips are made of ceramic now (is that modern... I think so!) The "problem" we had, was the ignition. now the problem is solved, and the saw is running verry good!
I just came back from the world championships, and I run the third time there in the hotsaw event. I allso saw a post about the price, this is €7500 euro ($9853,50)
If somebody wants more info, please contact me!
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They thought the Wankel was going to be the ulitimate engine .Used that engine in Mazdas,snowmobiles ,chainsaws and even a lawn mower .I think in a motorcycle or two also .
Problems. The rotor tip seals would fail and they drank gas like crazy .It might have worked out maybe using more modern components but I think they pretty much died 25-30 years ago as far as interest .
This is all tru (excuse me for my Englisch, I am from Holland). The rotor tips are made of ceramic now (is that modern... I think so!) The "problem" we had, was the ignition. now the problem is solved, and the saw is running verry good!
I just came back from the world championships, and I run the third time there in the hotsaw event. I allso saw a post about the price, this is €7500 euro ($9853,50)
If somebody wants more info, please contact me!
Thanks for the great info and welcome to the site! Those Wankels do interest me for sure.
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They did produce a lot of power for no bigger than they were .Then a little problem arose called a shortage of gasoline and they pretty much got put on the back shelf .Problem being they never were real efficient regarding fuel usage .Not a big deal on a saw but a real big deal in an automobile .
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It will be really neat to see how long before guys figure a way to fit one these motors
under production saw covers.
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Any pics of these wankel saws being built. Photos of the motor etc?
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Any body know who is building these? They always have STIHL bars and stickers on them.