since most sportbikes put out the same hp as a honda civic if you swap the motors and made the gearing the same would they perform the same?

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  • 6 months ago

    Torque is what will matters, not HP. If torque is the same, then yes, they would perform the same.

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  • 6 months ago

    Have you considered the weight factor? No.

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  • 6 months ago

    You couldn't switch the engines. One has a sprocket and chain drive and the other has a transaxle drive system.

  • 6 months ago

    If you made them the same they would be the same.

    Source(s): Why is it so obvious?
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  • 6 months ago

    You could feasibly put a sportbike engine in the civic, but you would have to reduce weight considerably for it to perform (and I mean really reduce weight - not just pulling the seats/interior out - you would have to get really creative with a torch/welder, replace body panels with fiberglass or carbon fiber, etc.).

    Putting the civic engine on the motorcycle would have the opposite problem - car engines are *heavy*, and in order to make it perform you would have to build the engine to ridiculous proportions in order for it to perform at all (and the extra weight would still make it handle like a**).

    • jason6 months agoReport

      im just talking hypothetically not anything with realistic proportioning in mind, i just wanted to know if you put a bike engine in a civic could it pull the civic around and up to speed?

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  • Anonymous
    6 months ago

    No, car motors are much heavier for the BHP output. Most bike motors rev higher than cage motors, so the gearing would be wrong. Plus, the added load., a 2200 # body would be a lot more load than the 400# or so of the bike.

    If you did get the bike motor geared right, it would constantly rev higher and wear out faster. Many are air cooled, too, the lack of cooling air under hood would prove disastrous., Have to run a constant fan on them. The small savings in weight on that 2200# cage would be almost insignificant. My CB650 produces No Power below 2 grand, so, you'd be hitting the gas all the time just to get going from a red light. Not simply slipping the clutch from idle, like they are designed for. Hard on the clutch.

    Engineers aren't stupid. A motorcycle's VeeTwin was used on the Morgan 3 wheeler, but, if you note, not tried Since. There is a Good reason.

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    • jason6 months agoReport

      so basically if you put a bike engine in a car my understanding is you would have the engine in high revs for same performance?

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  • Anonymous
    6 months ago

    We are talking power to weight ratios here. My bike produces 145bhp and 78 pft or torque. It weights 208kg and that makes for impressive acceleration and speed from a 1000cc street bike.

    However, put that same engine in the Honda civic and 78pft of torque would be inadequate to lug a 1200 kg car around so it would require a larger 1.6 or better still, a 2.0 engine and even then, the acceleration would be painfully slow compared to My Fazer 1000.

    So, to finally give you a direct answer: no swapping the engines would not work for reasons I've explained above and also be impossible from a practical viewpoint except in a trike, perhaps.

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  • Tim D
    Lv 7
    6 months ago

    No they would not.

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  • 6 months ago

    I would not use sportbikes ever.

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