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Thread: Mazda rotary sport/roadbike?

  1. #31
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    25th June 2007 - 21:21
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    As well as the Brap brap brap sound?


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  2. #32
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    25th March 2004 - 17:22
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    As I said Google it, I'm not even going to try & spell epitrapzoidal or whatever, but probably has less gyroscopic effect than a crankshaft. The Norton are also reknown for having less engine braking than a 2 stroke. Whereas WWI planes the whole (conventionally combusted) engine rotated & fixed crankshaft. . . . Or some such nonsense.
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  3. #33
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    9th April 2008 - 14:40
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    Quote Originally Posted by captain_andrey View Post
    OK I'll trust you on this. I dont actually have a clue about how the modern rotary works. But as long as there is a large rotating mass and no counter rotating mass the gyroscopic effect will still exist.
    On the RE5 the rotor spins inline with the bike not at 90 degrees (ie the same way as the wheels) See attached
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  4. #34
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    16th September 2004 - 16:48
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    been done before many times

    last one i recall was a 1991 FZR 1000 which had been streetfightered and converted to run a 1.0L rotary out of a car.
    Had good bursts of flame out the exhaust.
    Its in a book i have at home if your that keen to find out.
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  5. #35
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    Quote Originally Posted by captain_andrey View Post
    Wouldn't putting a large rotary engine in a bike create insane amount of inertia? I know by the end of world war 1 rotary engines in planes basically stopped them from turning right. Due to the gyroscopic effect, any applied torque was was shifted at 90 degrees off. EG pull stick = roll left. Killed a lot of pilots.
    This is the airplane rotary engine you are talking about, different to a Wankel, Some crazy bastards have still but them in bikes.
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  6. #36
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    5th February 2008 - 13:07
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    This crowd make a single rotor conversion.

    http://www.atkinsrotarymarine.com/

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  7. #37
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    Quote Originally Posted by Gregd17 View Post
    I have a idea.....
    Has anyone, or does anybody know of anyone, who has successfly put a 12a or a 13b mazda rotary into a sportsbike??
    I'm not talking about a Norton 588cc or anything like that (which I must say, at this time, is my dream bike) I'm thinking a 1200cc or 1300cc, maybe even bridgeport or turbo or both.
    We all know of V8s ending up in choppers, which is cool if you're into things like that, but we're here on this site looking up sport/road bikes, and I think most of us are into performance. Aren't we??
    Yes I know sport bikes go well now as they are, I have one, and I have seen on youtube turbo bikes with 500hp, but I like to be different. I like the sound!!!. Can you imagine pulling up to the lights on your sportsbike.. and the people next to you hearing your bike going... brap brap brap

    So what do you think??
    Is it possible??
    How do you think someone should go about it??
    What unforseen things do you think they would need to think about. (gearbox etc)
    I dont just want all your ideas so I can build one, let's share our ideas so maybe we could get a few going.

    I have considered it but i am too broke lol..

    BUT, when it's done, i'm taking her for a spin, you gunna go bridgy or pp port? or just leave stock?

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