How about this as an exhaust?

Discussion in 'Motorized Bicycle General Discussion' started by Mind_Reader7, Oct 4, 2010.

  1. Mind_Reader7

    Mind_Reader7 New Member

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  2. Nougat

    Nougat New Member

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    I may be wrong, but I'm not sure that would be good for a two-stroke. Seems like there would be essentially zero backpressure. There's a reason the stock pipes have a cap on the end with a little hole in it.
     
  3. Mind_Reader7

    Mind_Reader7 New Member

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    I've been running a straight through pipe for quite a while now, and O only have positive things to say about it. It's probably the biggest performance increase you can get from these engine.
     
  4. Nougat

    Nougat New Member

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    A straight pipe will give you some performance gain over the stock pipe, because the lack of backpressure will cause it to run leaner. However, too much lean will shorten the engine's lifespan considerably. An expansion pipe exhaust is preferable in every way to a straight pipe.
     
  5. Mind_Reader7

    Mind_Reader7 New Member

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    My bike runs fine. I was actually running it somewhat rich for quite a while, and change the needle setting about a week ago.
     
  6. PR3C150N

    PR3C150N New Member

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    Thats for a car?
     
  7. Mind_Reader7

    Mind_Reader7 New Member

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    Yepper. It's a car exhaust. I'm still yet to find a reason not to use it.
     
  8. NunyaBidness

    NunyaBidness Active Member

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    There has been a very good reason for NOT using it but apparently you don't want to listen to that advice. So good luck with it and I hope you don't ruin your motor too fast with it.
     
  9. Mind_Reader7

    Mind_Reader7 New Member

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    No worries. I'm going to buy it. Will post pics/reults when I'm done.
     
  10. Mind_Reader7

    Mind_Reader7 New Member

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    Hey, if I started this up, and had a spark at the end of the exhaust, would it shoot flames n stuff? Would be pretty cool.
     
  11. mobike91

    mobike91 Member

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    cause it weights alot? a car muffler weighs like 10- 25 lbs. even cherry bombs arent that light. the expansion chamber is light, mounts easily, and increases your power band. if those dont make you want a expansion pipe then your crazy lol.
     
  12. PR3C150N

    PR3C150N New Member

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    lol cant wait to see pics :=]
     
  13. Slowrollers

    Slowrollers New Member

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  14. PR3C150N

    PR3C150N New Member

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    Twin Expansion chamber looks awesome. anybetter then one?
     
  15. Slowrollers

    Slowrollers New Member

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    I have a friend that has one on his kitted motobecane (70cc) and he said it hits nicely @ around 35.....
    I think hes running polini stinger tips /baffels.....

    It looks cool and with a little welding it would be neat on a MB....
     

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