Runner engine strip down and re-build

Discussion in 'Scooter Projects' started by capri dave, Dec 8, 2007.

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  1. px166bajaj

    px166bajaj Active Member

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    Nice little gif here which shows the basics.

    [​IMG]
     
    px166bajaj, Mar 22, 2008
    #101
  2. Jamie

    Jamie Active Member

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    xt660x, 200sx s14a
    so the resonant wave was created to minimalise the scavenging affect?
     
    Jamie, Mar 22, 2008
    #102
  3. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    resonance wave was DISCOVERD not invented... and it was just a stumbeling block where an engine made the same power, made less nopise and used less fuel

    then people started thinkin about why and figured it was the pulses inside the pipe.. they thought instead of fighting pressure waves, time the pipe so they suck an compress inside the engine.

    the animated gif shows the principles verery well, its applying them to a peice of sheet steel that was the hard bit, its all old news now tho so we can borrow 20 yuear old technology to tripple the power of our engines.
     
    MiNoR cOnFuSiOn, Mar 22, 2008
    #103
  4. gazell

    gazell Active Member

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    1,104
    im probably asking a daft question.but if you dont ask you dont know.. how is the piston moveing up and down makeing the wheel move.. looking at that pic i cant figure it out lol
     
    gazell, Mar 22, 2008
    #104
  5. Jamie

    Jamie Active Member

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    crank spins the variator + flywheel. variator spins with the belt + clutch until its hits a certain rpm (as the clutch shoes move away from center) then they engage with the clutch bell which is attached to gear input which is connected to he gear output which spins the wheel.
     
    Jamie, Mar 22, 2008
    #105
  6. capri dave

    capri dave Active Member

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    5,076
    when the spark plug fires the compressed gasses (air/fuel) ignite
    and the force of the burn pushes the crown of the piston downwards...

    and because its connected to a crankshaft it returns just in time to be pushed down again ;)

    the variator is bolted onto the crank that is connected via a belt to the clutch ;)
     
    capri dave, Mar 22, 2008
    #106
  7. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    basicly.. imadgen a wheel on the centre of the thing at the bottom... the transmission just makes use of this spinning.,
     
    MiNoR cOnFuSiOn, Mar 22, 2008
    #107
  8. px166bajaj

    px166bajaj Active Member

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    px166bajaj, Mar 22, 2008
    #108
  9. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    ben a while now, you been giving that engine some abuse yet?
     
    MiNoR cOnFuSiOn, Apr 14, 2008
    #109
  10. numanoid1704

    numanoid1704 New Member

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    sorry minor but i had to :emb:
     
    numanoid1704, Apr 14, 2008
    #110
  11. capri dave

    capri dave Active Member

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    5,076
    of course i have minor :D

    although ive still got a few bits and bobs to buy set up wise...

    saw a young lad today on an aerox, dont know if hes from off here??

    anyway blue aerox, technigas pipe (no baffle packing :msn1: ) motorcross helmet and goggles....

    he was giving it the full beans up this steep hill, i passed him 1 handed :p
    wasnt really trying....as i passed him, his pipe was so loud i couldnt even hear my own engine :wtf:
     
    capri dave, Apr 14, 2008
    #111
  12. chris14

    chris14 New Member

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    331
    lmao i ahvnt seen him riding around before
     
    chris14, Apr 14, 2008
    #112
  13. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    so you gonna get some vids or what? :cool:
    oh an when you gonan think about nrg rims for ya beast?
     
    MiNoR cOnFuSiOn, Apr 14, 2008
    #113
  14. capri dave

    capri dave Active Member

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    5,076
    was thinking more along the lines of city 16 and 25mm dell 1st ;)

    but i do need to do something wheel wise, your right minor!!! :D
     
    capri dave, Apr 15, 2008
    #114
  15. capri dave

    capri dave Active Member

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    5,076
    i thought it might be 1 of the Aerox owners from off here :p

    his pipe is far too loud really...the police will have him eventually :wtf:
     
    capri dave, Apr 15, 2008
    #115
  16. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    jus chuck some vids of it as is... then faster vids once you got the bits.. be interesting to see how it goes with the 20.5, box and lazer
     
    MiNoR cOnFuSiOn, Apr 18, 2008
    #116
  17. bertie

    bertie Active Member

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    '93 Skipper LX125
    What a awesome thread! I would love to see this runner on video!

    You have a nice ped there!
     
    bertie, Apr 18, 2008
    #117
  18. alex_1966

    alex_1966 New Member

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    hes got a video of it , its somewhere in the vids section
     
    alex_1966, Apr 18, 2008
    #118
  19. capri dave

    capri dave Active Member

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    5,076
    small update page 1 :D
     
    capri dave, Apr 30, 2008
    #119
  20. lol

    lol New Member

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    964
    yh its looking good u r gona have to get a vid of u rideing it
     
    lol, Apr 30, 2008
    #120
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