212cc Predator Experiment - Performance Build

Discussion in 'High Performance Bicycle Engine Tips and Motorized' started by TheNecromancer13, Aug 23, 2018.

  1. TheNecromancer13

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    So I'm thinking about building up a 212cc predator engine with the goal of getting as much power as possible on a $1,000 budget, not including the stock engine or a bike to put it on, as I have both of those already. The end goal would be to race it in the unlimited class at one of the SoCal MB races. Since I'm on a budget (albeit a large one) what mods do you guys think would give me the most bang for the buck?
     
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  2. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

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    Are you on Facebook?
    #3 which is the UnLimited class bike to beat makes about 20 HP
    Does your $1000 include the $200 or more clutch?
    What frame are you using?


    IMG_2698_zpsfe7ec85a.jpg
     
  3. TheNecromancer13

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    Not including the clutch. What clutch would you recommend? Probably going to use my trek 820 frame which currently has a 79cc predator mounted (bike in my profile pic). I am TJ Lavelle on facebook, I'm already in the SoCal group. Also, I doubt I will win unlimited my first try, I just want to race in that class.
     
  4. waynesdata

    waynesdata Active Member

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    00j0j_55GUwfHS8lF_600x450.jpg

    The 212cc is BIG. I have a hard time calling the finished project a bike.
     
  5. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

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    IMGP6929-L.jpg
    He said his goal was to race it in the Unlimited class at a Socal Motor Bicycle Racing event so your opinion about it uncalled for.
    The 212's we race are definitely more bicycle than motorcycle.
    100 lbs with 20 HP on bicycle tires.
     
  6. TheNecromancer13

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    And so it begins...

    DSCF2102.JPG DSCF2127.JPG
     
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  7. Rob D

    Rob D New Member

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    [​IMG] I would use a CVT torque converter. Hands down, its the BEST!!
     
    #6 Rob D, Sep 8, 2018
    Last edited: Sep 8, 2018
  8. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

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    Hey nobody is racing a CVT at Socal Motor Bicycle Racing in UnLimited class
    because they blow up on over 15 HP motors and the fastest 212s are 20 HP.

    Read in the first post that the end goal would be to race it in the unlimited class at
    one of the SoCal MB races.
     
  9. Tony01

    Tony01 Well-Known Member

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    Hemi predator. Lucky guy.

    post this topic on karting.4cycle.com


    no, it's the worst. Bruh please you still have the governor installed. My 212s don't even make it to the bike without getting the governor gear and sensor removed. If you are ok with the power loss and the loud clanging noise, then how have you solved the blowing driver springs problem?
     

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