Discussion in 'Performance Mods' started by joeranton, Mar 17, 2007.

  1. joeranton

    joeranton Guest

    Would there be, or is there a way to add a turbo kit onto these 70/80cc engines or would I have to fabricate one myself. Any tips?

  2. Tom

    Tom Active Member

    Ive thought about this before, and there could be, but I dont know if the idea of a turbo would work on a 2-stroke engine...
  3. Guest

    Guest Guest

    Yes here's a tip......don't. The cost of the turbo alone would buy you a faster mode of transportation. Two strokes are not readily "turbo'ed" and I doubt you'd find one small enough for these tiny engines.
  4. Tom

    Tom Active Member

    Yeah, but if you had all the money in the world and all the time in the world, other motorized bikers would think its pretty sweet if you turboed your bike
  5. joeranton

    joeranton Guest

    I think I'm gonna try it. Need to do my homework on turbo kits n check out my options. I'm gonna try to fabricate one myself. I think it will be cheaper that way.
  6. Tom

    Tom Active Member

    that would be sooooo hard, but so sick if you could pull it off. let us know how it goes!
  7. jaker

    jaker Guest

    ive always wanted to supercharge a briggs and stratton with a smog pump from a mustang 5.0 this is a much cheaper way to do it hehe :)
  8. Guest

    Guest Guest

    It would be cheaper and easier and just as effective to tie a few sticks of dynamite to the back...
  9. jaker

    jaker Guest

    yeah for the price of a turbo you could get a used 80cc dirtbike engine and let it scream heh :p
  10. Guest

    Guest Guest

    Or a couple and let 'er rip with a twin engine beast!
  11. joeranton

    joeranton Guest

    Oh don't even give me that idea. I plan on living for a while. I am easily persuaded on these types of things and I am crazy enough to rig one up if I could get my hands on the engines.
  12. srdavo

    srdavo Active Member

    mount a big chainsaw engine on your bike....& hang on!!!
    :lol: :lol: :lol: :lol: :lol:
  13. joeranton

    joeranton Guest

    Hehe. I've done that already using a 33c chainsaw engine with a rear coaster rim sprocket welded to the centrifugal clutch and a front sprocket off a touring bike mounted on the rear scooter tire. Did not have a throttle though. Just held on with one hand and squeezed the trigger or pushed the lock button n the bike just kept going. Lots of fun. Top speed was 32 MPH. No vibration. I built a frame for the little motor. Worked great. Any other crazy ideas?
  14. Guest

    Guest Guest

    Rocket booster?
  15. gone_fishin

    gone_fishin Guest

  16. rogersverobeach1

    rogersverobeach1 New Member

    i don't know either and although these are gasoline-a detriot desel is a supercharged two stroke deisel,so i would imagine there would be no problem.sounds very expensive though:D
  17. give me vtec

    give me vtec Active Member

    good luck sourcing a turbo with a correct compressor map...
  18. Old Bob

    Old Bob Member

    This has been beat to death on every forum out there that involves two strokes.
    Yes it works.
    No there are no turbos in the size you need.
    Is it worth doing? No
    Spend your time and money researching expansion chambers and save weight,money and not have complicationed machinery and plumbing.

    Detroit diesels are a different type of two stroke, they are not piston port but rather have inlet ports around perifary of cylinder liner on the lower portion with cam driven exhaust valves.The blower is used for scavenging the cylinder and to boost cylinder pressure.
    The valves shut before injection of fuel so no A/F mixture runs out exhaust port and does not use or need reverse flow to fill cylinder with complete A/F mixture as with a carburetored SI engine as the fuel is injected into pre chamber after valves are shut, in this portion of the combustion process it is like a regular 4 cycle diesel.
    Last edited: Jan 23, 2010
  19. DougC

    DougC Guest

    Turbo a happy-time 2-stroke? Nope, won't work.


    Turbo a ~50cc 4-stroke engine?

    Would work, if you had a turbo small enough.
    Nobody makes them.
    You might be able to make something workable yourself, if you have access to a milling machine and a lathe. McMaster-Carr sells smaller chunks of the metal you need for the spinning parts. My main questions would be what to use for bearings? I would look for some open-cage ceramic bearings, and then expect to use an electric pump and radiator to circulate cooling oil through them.

    I would suggest a supercharger instead, though. A centrifugal-flow supercharger would be about half-easier to build than a turbo would. Setting up the flow/boost is far easier also, as it's just mechanically driven off the crankshaft.


    I read the thread on the turbocharged Whizzer. I would wonder what that turbo is sized for. Turbos are driven by exhaust flow, so putting a turbo for a big engine onto a smaller engine doesn't work well, and may not provide any boost at all. [edit] And what what he doing for bearing cooling?

    The smallest turbos I found online were for ~500cc motorcycle engines. There's no way a 138cc Whizzer engine is going to get more than a couple PSI of boost from such a turbo, the Whizzer engine doesn't seem to me that it would provide enough exhaust flow to run the turbo very fast.
    Last edited by a moderator: Jan 24, 2010
  20. Fabian

    Fabian Well-Known Member

    The last time i chatted with Tony from Rock Solid Engines, the team was playing around with a small 2 inch diameter experimental turbo, designed to work with a 2 stroke bicycle engine.

    Time will only tell if it gets to the production stage.

    Would certainly be a "must have" accessory if it proves workable and reliable.
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