Everyone loves upgrades

Discussion in 'Motorized Bicycle General Discussion' started by Houseworth_t, Feb 22, 2011.

  1. Houseworth_t

    Houseworth_t New Member

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    I have been at this for a little bit have seen some tips on upgrading the engines from drilling out jets to the next level exhaust. I was wondering what works not like the nitrous that's just dump. i hear alot on the boost bottles and the reed valves post your best upgrades here!
     
  2. The 26incher

    The 26incher New Member

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    Remove the head gasket...
     
  3. joabthebugman

    joabthebugman New Member

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    That's the second time I have seen you type that 26

    How does that work?
    do you need to do any prep work to prevent blow by?
     
  4. Houseworth_t

    Houseworth_t New Member

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    ya what joab said. thats to increase the pressure that builds in the chamber right? since there would be a smaller gap
     
  5. The 26incher

    The 26incher New Member

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    Try it, it's only 4 nuts. Works great for me...
     
  6. bairdco

    bairdco a guy who makes cool bikes

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    just make sure both surfaces are completely flat and that the piston doesn't hit...
     
  7. dmb

    dmb Active Member

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    do you just eyeball it or use clay? how about polishing the exhaust port and the combustion chamber? and last has anybody used methanol [big jets]
     
  8. Nashville Kat

    Nashville Kat Active Member

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    I'm always touting the billet intake-
    you just missed the President's sale at Bikeberry where it was going for just over ten dollars-
    getting the carb close up to the cylinder seems to make all the difference in carburetion, and for the most modest cost.
    The NT 66 carb with a 66 motor also helps performance, but not so drastic and at more cost.
    not a motor upgrade, but the more narrow the tire, the better the roll
    and a 36 sprocket works well, on the road at least
     

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