Comments on: Small Rotary Engines for Motorcycles? http://thekneeslider.com/archives/2006/08/17/small-rotary-engines-for-motorcycles/ Motorcycle News for Positive People Sun, 12 Feb 2012 06:40:33 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Ed Hawke http://thekneeslider.com/archives/2006/08/17/small-rotary-engines-for-motorcycles/#comment-123545 Ed Hawke Fri, 04 Apr 2008 17:15:45 +0000 http://thekneeslider.com/?p=1156#comment-123545 First, the Wankel is a 4 cycle motor. That is, it is unlike a 2 cycle in using an actual rotor motion to push out the exhaust. Second, part of the first fuel economy problem was due to the use of a Thermal Reactor style of pollution control. Extra fuel was required to keep a fire lit (so to speak), in the reaction chamber. Third, your average mechanic does not have a machine to reface the trochoid chamber, (you can't just use a berry hone, or boring machine), so freshening up the top end becomes a very specialized job. Standard Mazdas, used for racing, had a nasty habit of walking the drive gear out of the rotor at high rpm. I hope that would be addressed in a motorcycle version. First, the Wankel is a 4 cycle motor. That is, it is unlike a 2 cycle in using an actual rotor motion to push out the exhaust. Second, part of the first fuel economy problem was due to the use of a Thermal Reactor style of pollution control. Extra fuel was required to keep a fire lit (so to speak), in the reaction chamber. Third, your average mechanic does not have a machine to reface the trochoid chamber, (you can’t just use a berry hone, or boring machine), so freshening up the top end becomes a very specialized job. Standard Mazdas, used for racing, had a nasty habit of walking the drive gear out of the rotor at high rpm. I hope that would be addressed in a motorcycle version.

]]> By: Robert Weathers http://thekneeslider.com/archives/2006/08/17/small-rotary-engines-for-motorcycles/#comment-52898 Robert Weathers Thu, 07 Dec 2006 14:38:40 +0000 http://thekneeslider.com/?p=1156#comment-52898 A german company produced a rotary powered motorcycle in the 70's called the Hercules. I don't remember the displacement, etc. Currently Rotamax is the only company actually shipping these smaller rotary engines out the door. They definitely improved the rotary engine. The emissions are now extremely low, better fuel consumption and lots more power! I am working on a project with Eric Barger of Rotamax, call him if you have any questions. A german company produced a rotary powered motorcycle in the 70′s called the Hercules. I don’t remember the displacement, etc. Currently Rotamax is the only company actually shipping these smaller rotary engines out the door. They definitely improved the rotary engine. The emissions are now extremely low, better fuel consumption and lots more power! I am working on a project with Eric Barger of Rotamax, call him if you have any questions.

]]> By: kiwirambob http://thekneeslider.com/archives/2006/08/17/small-rotary-engines-for-motorcycles/#comment-40505 kiwirambob Mon, 21 Aug 2006 23:41:05 +0000 http://thekneeslider.com/?p=1156#comment-40505 I had a suzuki RE5.. the first model to come to aus It was a good motorcycle . Did not like chain drive Should have had a bigger RPM counter...may be to 20,000rpm I payed $3500 aus new . Three year,s later $1200 new I sold mine for $500 and still going strong . Damn i wish i had it now I had a suzuki RE5.. the first model to come to aus
It was a good motorcycle . Did not like chain drive
Should have had a bigger RPM counter…may be to 20,000rpm
I payed $3500 aus new . Three year,s later $1200 new
I sold mine for $500 and still going strong . Damn i wish i had it now

]]> By: hoyt http://thekneeslider.com/archives/2006/08/17/small-rotary-engines-for-motorcycles/#comment-40448 hoyt Fri, 18 Aug 2006 16:12:56 +0000 http://thekneeslider.com/?p=1156#comment-40448 The MYT is a great concept (along the same "lines" as the other circular engines). Check out the video from the auto show.... Rafeal explains the 850 hp figure was for MYT engines being used for tractor trailer applications. Weighing 150 lbs. instead of the current 3000 lb. diesels..... An automobile version of the MYT engine would be: 4.5 inches diameter 7 inches long 25 pounds 250 - 500 hp 150 mpg Now, what would a motorcycle version of this engine be like? 3 inches wide? 15 pounds? 160 hp? ...which could make performance motorcycles about 250 pounds in total weight The MYT is a great concept (along the same “lines” as the other circular engines).

Check out the video from the auto show….

Rafeal explains the 850 hp figure was for MYT engines being used for tractor trailer applications. Weighing 150 lbs. instead of the current 3000 lb. diesels…..

An automobile version of the MYT engine would be:

4.5 inches diameter
7 inches long
25 pounds
250 – 500 hp
150 mpg

Now, what would a motorcycle version of this engine be like?

3 inches wide?
15 pounds?
160 hp?

…which could make performance motorcycles about 250 pounds in total weight

]]> By: Alex http://thekneeslider.com/archives/2006/08/17/small-rotary-engines-for-motorcycles/#comment-40438 Alex Fri, 18 Aug 2006 09:12:54 +0000 http://thekneeslider.com/?p=1156#comment-40438 Anyway, the MYT also looks like a great concept. Anyway, the MYT also looks like a great concept.

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