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Thread: Turbo Charging a 2 stroke engine. is it possible?

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    Default Turbo Charging a 2 stroke engine. is it possible?

    Im buying a vespa
    i want to buy it 49cc.
    That way i can drive without insurance or a liscense.
    however on my way to work i have to go 45-55 miles per hour.
    At the vespa dealership they said maximum speed for a 49 cc is about 40 mph.

    So i guess the question i am asking is.......
    Can i turbo charge my 49cc vespa?

    If not is there a problem with driving full speed constantly on a vespa?

    Can a 49cc really go 40 mph?

    And then should i just upgrade and pay a ton more in insurance.

  2. #2
    ex-DSMer
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    wow stupid question.. sorry.. had to.

    Turboing a vespa would not change the top speed. Top speed is forced by gearing so the only way to change the top speed is to change gearing.

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    The future engine is going to be a supercharged 2 stroke,well thats what a magazine said.

  4. #4
    (OO=[][]=OO) Dominic49's Avatar
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    there are vespa tuners out there that can make them cruise around at 75mph all day.... in fact I think they had a show about it on speed or spike or something... I just kept laughing though.... pimp my scooter FTW!

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    WANTS TO GO FAST! 2.0civic's Avatar
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    hell yeah!! 75 MPH on a scooter would kick ass
    FUCK B&D COMMUNICATIONS!


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    75 mph on a scooter sounds like an accident waiting to happen if you run over anything bigger than a golf ball. those are some tiny-ass wheels, man....

    Can you turbocharge a 2-stroke? Probably, lol, but what would be the reason? I imagine you'd have to adjust the timing every time you ran that thing and I bet the power from the turbo would go into shaking the engine as much as adding any torque.

    If you want a fast, small block engine on a bike then look at some euro spec aprillias. Those things haul ass.

  7. #7
    ACC CHAMPS bigdare23's Avatar
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    call mainstream!!!

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    Pimp my scooter,,sweet

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  10. #10
    JDM swaped shortbus Big J's Avatar
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    you can't turbo charge a 2 stroke. The exhaust pulses and subsequent reflections are what help fill the cylinder. Any increase in back pressure will cause way too much exhaust reversion. 2 stroke marine diesels, which are non-self asperating, meaning they can't cant pull in air on their own, are supercharged, they have to be.


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    I dont know much about vespas, but I have a Yamaha Vino. They are now 4 stroke but if u get a used 2-stroke it can be made to do about 37 on flat ground and around 40-43 on slight downward incline by just derestricting the exhaust and removing a washer on the belt drive. In order to cruise around 50 mph you could invest in a 70cc kit, which would let u cruise around 50. In order to not have a liscence and insurance it has to be under 50cc and not exceed 30 mph.

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