NRG 140cc twin engine in progress.

Discussion in 'Scooter Projects' started by MARSH, Sep 15, 2013.

  1. MARSH

    MARSH Whooooo!

    Messages:
    2,486
    Rides:
    Piaggio Typhoon
    Here's a few pics of my latest twin engine that I'm building, based on a nrg motor. Two Doppler S7r barrels, Doppler full circle cranks, I'll be using Doppler s3r pipes running on std 17.5 carbs. Just waiting for some machining from an engineer and it's almost ready to build up. Just need a Mc3 to put it in! If you know where there is a good nrg for sale let me know. SDC10564.JPG SDC10565.JPG SDC10566.JPG SDC10567.JPG
     
    BunnyMum, Jiz0# and Subw00fer like this.
  2. Merlin

    Merlin Old School Biker

    Messages:
    2,299
    Rides:
    2007 TKR WRC 50
    Nice. That reminds me of an old Kawasaki KH-based, four cylinder 2-stroke that Allen Millyard built in the late '70s that he called 'A Little Bit On The Side'. He eventually went all the way up to a 2300cc V12, based on two Z1300 engines!!

    Here's the four cylinder:-

    http://thekneeslider.com/two-allen-...e-kawasaki-h2-1000-4-and-a-kawasaki-h1-850-5/

    I must admit that I have a major soft spot for Kawasaki triples from the '70s - the sound they made was unique and called to me like a Siren calling sailors onto the rocks...

    Here's the V12:-

    http://www.motorcyclistonline.com/features/v12_custom_kawasaki_2300cc/

    *Drools*
     
    BunnyMum likes this.
  3. southweezy19

    southweezy19 hardcore ss member

    Messages:
    405
    Rides:
    yamaha neos!!
    Wow just... Wow
     
  4. waynesworld

    waynesworld Member

    Messages:
    120
    Whats the out put power on it
     
  5. MARSH

    MARSH Whooooo!

    Messages:
    2,486
    Rides:
    Piaggio Typhoon
    Not sure but they say each barrel will be between 10-14hp using the right bits, so who know's!
     
  6. lee mason

    lee mason Active Member

    Messages:
    680
    Rides:
    suzuki rg125 gamma
  7. waynesworld

    waynesworld Member

    Messages:
    120
    It will be a very fast I think u will be wheeling everywhere lol
     
  8. Merlin

    Merlin Old School Biker

    Messages:
    2,299
    Rides:
    2007 TKR WRC 50
    How do you plan to join the two crankshafts together?
     
  9. MARSH

    MARSH Whooooo!

    Messages:
    2,486
    Rides:
    Piaggio Typhoon
    The joint is very simple and readily available to anyone!
     
  10. Jiz0#

    Jiz0# Customizing knows NO limits !

    Messages:
    18
    Rides:
    Piaggio NRG Power DD
    sick mate !
    Looking forward to what this is going to be :)
    I got a Mc3 Frame left over but its already cut off on the back end.
    hit me up if you're interested
     
  11. ramo

    ramo GoldMember

    Messages:
    1,541
    Nice that. Should be a crazy little bike once its done:cool: Do you do much of the work on these yourself?
     
  12. MARSH

    MARSH Whooooo!

    Messages:
    2,486
    Rides:
    Piaggio Typhoon
    I did a lot more on my old 250 twin, much better to get the machining done by people who know how to machine/weld things properly! I'll just build it up when all the bits are done.
     
  13. g0d0fun1x

    g0d0fun1x New Member

    Messages:
    27
    Rides:
    Aprilia SR70R
    jesus chrust nice twin. hope you done it :)
     
  14. MARSH

    MARSH Whooooo!

    Messages:
    2,486
    Rides:
    Piaggio Typhoon
    Just a little update on the twin, had these exhaust flanges machined up, as you can see, the Doppler barrel has flat exhaust face where as the the doppler pipe and std Piaggio have cone ends. SDC10582.JPG SDC10581.JPG SDC10578.JPG SDC10580.JPG Just need to fit longer studs ! If anyone want's one then just let me know. ps, I've fitted the cranks with my joint and it turn's over perfect!
     
    Subw00fer likes this.
  15. MARSH

    MARSH Whooooo!

    Messages:
    2,486
    Rides:
    Piaggio Typhoon
    Finally got the pipes measured up and fitted, only needed a couple of tiny alterations to fit! It look's wide with the pipes side by side, I'd have liked the pipes "stacked" gp style but when fitted to the NRG frame I think it won't be to bad, probably 6-8" wider. SDC10591.JPG SDC10593.JPG SDC10595.JPG SDC10598.JPG SDC10594.JPG Getting there slow but sure.
    I'm still looking for NRG Mc3 for this project.
     
    BunnyMum, Gbisk and lee mason like this.
  16. Subw00fer

    Subw00fer Snqʍ00ɟǝɹ

    Messages:
    594
    Rides:
    70cc NRG
    insane! hope you can find one soon:)
     
  17. Stevep

    Stevep Well-Known Member

    Messages:
    5,101
    Just a thought about the pipes...............what about a two into one instead of two complete systems?
     
  18. zip172mhr

    zip172mhr Member

    Messages:
    63
    Rides:
    piaggio zip 183cc 2t
    this is gonna be the dogs bolloxs . great job m8 cant wait to see the end result :)
     
  19. MARSH

    MARSH Whooooo!

    Messages:
    2,486
    Rides:
    Piaggio Typhoon
    I thought about 2 into 1 pipes but surely there not going to be as good as 2 separate pipes?
     
    BunnyMum likes this.
  20. A-LY

    A-LY Active Member

    Messages:
    419

    youre killing me here!!!
     

Share This Page