adding stock/small muffler to Skyhawk expansion chamber?

Discussion in 'Performance Mods' started by 2strokejosh, Jun 5, 2012.

  1. 2strokejosh

    2strokejosh Member

    Hey guys, I recently got a Spooky tooth (Skyhawk) chamber for my bike, I put it on and it is super loud! I was just woundering if anybody on here has any pics of one with a small or stock muffler on it to quiet it down a little.
    It was a good power increase but a bit to loud for me personally..
    Thanks Heaps Josh.
     

  2. Fabian

    Fabian Well-Known Member

    Making it quieter may also save your hearing. I am sure there are good methods out there but i know that SickBikeParts sell a muffler for their expansion chamber. Maybe it fits your system.
     
  3. 2strokejosh

    2strokejosh Member

    Thanks Fabian Just had a look at the Sick Bike Parts muffler an it looks perla for it! I've been on ebay an that looking for small mufflers but had not much luck. I'm going to order it next week.
     
  4. Fabian

    Fabian Well-Known Member

    Glad to be of any help, though there are many other people on here with fantastic technical knowledge or product advise or who can be of general assistance.
     
  5. motorpsycho

    motorpsycho Active Member

    here's mine.
    it's the spooky tooth chamber, with a stock muffler welded to the end.
    Of corse, i modified the baffle in the muffler for better flow and I added a chrome turnout to the end of the muffler. I had to cut off the end of the muffler where the original pipe went into it. I had to contour and file the end of the muffler to fit over the chamber. I didn't just attach it to the little outlet pipe on the chamber, i slid the muffler over the end of the chamber. the whole thing is wrapped with header heat wrap to hide the weld.
    oh by the way, it sounds really good too.

    http://www.youtube.com/watch?v=Lj3b_RxFv0M

    [​IMG]
     
    velzie likes this.
  6. 2strokejosh

    2strokejosh Member

    Wow that bike looks soo nice mate well done! And that is what I was thinking of doing but was going to use the little pipe on the chamber and extend it from there.
    But that's closer to the chamber as that's what I want and it would most probly flow better? I've got an old stock muffler here I might give it a go =)
    I'm going to order the sickbikeparts muffler first an see haw that goes first but ifnot Ill give it a go!
    and was yours extremel loud without it? becouse mines all most unrideable!
    Thanks Josh.
     
  7. 2strokejosh

    2strokejosh Member

    Oh and did you cut off that little pipe on the chamber when you welded the muffler over it or leave it on?
     
  8. Fabian

    Fabian Well-Known Member

    I must admit motorpsycho, your bike looks like a nice piece of work.

    Help me out with an explanation of your chain tensioner which seems to work opposite to conventional theory - feed side rather than return side?
     
  9. motorpsycho

    motorpsycho Active Member

    yes, i did cut that little nub of a pipe off of the chamber before i welded the muffler to it.

    yes, it was loud without a muffler, and it actually runs better with the muffler than it did without it.
     
  10. motorpsycho

    motorpsycho Active Member

    yeah, yeah....tons of people tell me that my chain tensioner is on the wrong side of the chain.
    BUT, it's been on there that way for almost 3 years now and it does it's job.
    Plus, it's got a spring pulling tension downwards on it, so it moves up & down with the chain.
     
  11. Fabian

    Fabian Well-Known Member

    I'm glad your tensioner has worked for the last 3 years - given the design, i must be doing something completely wrong with my tensioners.
     
  12. LaLongueCarabine

    LaLongueCarabine New Member

    Has anyone got the expansion chamber that is shaped like a long diamond with a small can muffler on the end? I can't remember where I saw ít,but it seems like a good design.
     
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