Looking to make an expansion chamber...

Discussion in 'Motorized Bicycle General Discussion' started by Motor Boys, Nov 16, 2009.

  1. Motor Boys

    Motor Boys New Member

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    I was wondering if anyone had any tips on fab.ing up a quick expansion chamber. I was thinking of buying one but not sure if it is what I am looking for .. So i want to make a little tester first and see where it takes me. Any tips would be great pic's would be outstanding.
    Thanks

    Ps I have a welder and everything i would need, just would like to try something new.
     
  2. Motor Boys

    Motor Boys New Member

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    Can anyone help me out?
     
  3. 2door

    2door Moderator
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  4. Motor Boys

    Motor Boys New Member

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    Thanks 2 door
     
  5. Venice Motor Bikes

    Venice Motor Bikes Custom Builder / Dealer/Los Angeles

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    Norman knows how to make them... PM him & ask.
     
  6. freewheeling frank

    freewheeling frank New Member

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    they work. but just punching out the stock mufflers has worked well for me that is drilling holes not only the end caps but internaly ya the get loud no louder than the herd of harleys, bought a tuned from spookytooth, just to tight for my builds barely rubbed the front tire but did increase power, no more than opening the stock muff up the units that are high up against yer leg seem to get better reviews
     
  7. tyrslider

    tyrslider New Member

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    Old 2 smoke tuner books usually have basic designs. Now there's software simulators but back in the day it was trial and error. It can be a lot of tuning work and you really want to have spare jets in different sizes! HuckerSteve likes his Sick Bikes ex chamber and his bike is rediculously fast!
     
  8. foureasy

    foureasy New Member

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    there is nothing quick about it
     
  9. Motor Boys

    Motor Boys New Member

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    Thanks for the help guys, just looking to see if they make a big difference.... do they?
     
  10. foureasy

    foureasy New Member

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    a bigger difference than anything else you can bolt on..... if done properly, it can create as much as 6psi of vacuum or pressure to "supercharge" the motor during a specific rpm range. but there is more to it than a longer header or holes in the stock pipe.
     
  11. Motor Boys

    Motor Boys New Member

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    Thanks again, I have been checking out the links and I think , I may try it not much to do tomorrow.
     
  12. Motor Boys

    Motor Boys New Member

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    What do you think of the chambers from spooky tooth ? Anyone out there using one?
    Thanks
     
  13. tyrslider

    tyrslider New Member

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  14. BarelyAWake

    BarelyAWake New Member

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    I'm runnin' the SBP one (and I loves it :D), but check this thread out: http://motorbicycling.com/f4/spooky-expansion-12731.html

    RedB66 has one on his bike;

    quote is from from this thread: http://motorbicycling.com/f13/try-spooky-tooth-6845.html
     
    #14 BarelyAWake, Nov 18, 2009
    Last edited: Nov 18, 2009

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