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    GSXR750 pushing a 1400lb four seater...too much?
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    Too much buggy for the motor, I mean. I'm considering a '98 GSXR750 engine to replace the engine in my Roketa buggy...about three times the horsepower and about twice the torque, but not sure if the clutch on the bike will be up for the weight of the buggy. It's basically going to be setup with a custom axle that ties the output from the bike engine to the input shaft on my existing four speed in the buggy. Gearing will be reduced pretty low this way unless I kick the bike transmission up into fifth or sixth. Some mild climbing. Not intending it to be a hotrod. I'm just concerned about the clutch holding up to the task. The buggy loaded weighs about 1500lbs.

    Any opinions?
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    Re: GSXR750 pushing a 1400lb four seater...too much?
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    Millenium Member jersdunz's Avatar
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    You can bypass clutch issues by gearing it correctly. The sport bike engine is a hirt rod engine. It's gotta be able to rev. Sounds like you need a torque engine
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    Re: GSXR750 pushing a 1400lb four seater...too much?
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    Senior Member jimmyg's Avatar
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    Gear it down and it will be fine. Might loose a bit of top end but
    40mph is fast enough. Drive it with mechanical care and keep it cool and it will do great.
    All dressed up and waiting for the beer to arrive.
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    Re: GSXR750 pushing a 1400lb four seater...too much?
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    Millenium Member jersdunz's Avatar
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    Quote Originally Posted by jimmyg View Post
    Gear it down and it will be fine. Might loose a bit of top end but
    40mph is fast enough. Drive it with mechanical care and keep it cool and it will do great.
    Said nobody driving a bullet bike powered buggy....lol..

    Your breaking shit my friend and it'll be awesome.. :-)

    Sent from my SM-G900V using Tapatalk
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    Re: GSXR750 pushing a 1400lb four seater...too much?
    #5
    Millenium Member jersdunz's Avatar
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    Break fix repeat!! Git r dun

    Sent from my SM-G900V using Tapatalk
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    Re: GSXR750 pushing a 1400lb four seater...too much?
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    My last buggy was a VFR800-powered machine that was pretty peaky...not as much as the GSXR750 will be, but still loved being wound out. It weighed about 400lbs less than the current machine and held up, but the VFR clutch seemed beefier. The way I drive these things I'm not too concerned about beating up the cases and I think the kind of stress that caused your failure I won't see...I'm not going to be driving a sprocket, it's going to be driving a support shaft connected directly to the buggy transmission. I'm still thinking the clutch basket and plates will be the weakest point.

    But yeah...I would much rather run something like a B12 setup. Someone in my area has a beater TL1000R that I would LOVE to get my hands on but he thinks it's made of gold or something.
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    Re: GSXR750 pushing a 1400lb four seater...too much?
    #7
    Millenium Member jersdunz's Avatar
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    Look for a blackbird there really torque monsters, and the clutch in mine u
    Is the one it sold with in o2.
    Or zx12,'s are awesome for mid power too

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    Re: GSXR750 pushing a 1400lb four seater...too much?
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    I would love to find an XX or ZX12/ZZR12/etc but not a lot here to be broken down.
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    Re: GSXR750 pushing a 1400lb four seater...too much?
    #9
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    I had a 750 engine in my car, it ran good but to be in the power band it needed to be between 12,000-14,000 rpm, no torque to speak of so just getting it moving was something to get used to, I put in a Busa engine and it is a world of difference, has enough bottom end torque to get it moving just off idle, much wider power band and doesn't need to rev out so much.

    but that 750 sure did sound sweet at those high revs, like a formula one car
    the busa shift point is around 9800 rpm, I could not see the 750 living a long life pushing a heavy car through the sand at those RPMs, if your interested I have the 750 available.
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    Re: GSXR750 pushing a 1400lb four seater...too much?
    #10
    Millenium Member jersdunz's Avatar
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    Kuma, you should put the 750 in a shopping cart, with shifter cart wheels!!
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