expansion chamber

  1. lukecanna

    Tuning for Expansion chamber

    Just recently installed my cdh66 expansion chamber exhaust and was wondering what tuning should be done for best performance I have stock everything just a short intake. I was thinking i may need to move the c-clip down a notch on the needle to have a richer fuel flow This is my spark plug
  2. Chucklittle14

    Cdh66 expansion chamber

    Ok, to start off, what is the deal with the racing expansion chambers (mz65, cdh66, bbr tuning deluxe expansion chamber, zeda88 exhaust) are the all the same? Do they increase top speed by a noticeable difference? Better than a banana expansion chamber?
  3. lukecanna

    KX65 Expansion Chamber or similar?

    Hi Everyone, Wanting to buy a expansion chamber for my bike as im still using the stock one with no baffle and holes drilled in it. What are your recommendations? I saw a post where someone said they put a kx65 econ there bike but they didnt give any info, i can weld btw so that isnt a problem...
  4. D

    Cheap expansion chamber available in Australia

    Hi, I'm looking for an expansion chamber for my 49cc china kit. At the moment I have the eBay banana pipe but I'm looking for something more for a decent price available in Australia. Side note, I have done a few things to my bike and I am in the process of doing more. I have done the; Banana...
  5. D

    Finding a nice expansion chamber in Australia

    Hi, I'm looking for an expansion chamber for my 49cc china kit. At the moment I have the eBay banana pipe but I'm looking for something more for a decent price available in Australia. Side note, I have done a few things to my bike and am in the process of doing more. I have done the; Banana...
  6. J

    Performance parts before break in

    I ordered a new bullet train 80cc motors and I was wondering is it safe to use performance parts on it like a sbp expansion chamber and other things like reed valves and a speed carb.
  7. Kelster66

    Expansion pipe silencer.

    So I'm trying to come up with a good silencer for my Boost expansion pipe from Gasbike but not having any luck at all. Any suggestions or ideas?
  8. Crisco

    Board Track/Street Build

    Hey there...:) So we're going to do this one properly..! Originally, I was going to go with a dedicated board track racer, but this idea became a little too cost prohibitive. With the frames at around $350 USD, that would be almost $500 by the time it got to Oz. And that's not even with the...
  9. N

    Exhaust My Murphy McMonkeyPatcher diy exhaust replacement - effective, ghetto AF, expansion chamber exhaust

    originally I had the voodoo brand I think of banana tube expansion chamber that came w/ the kit I ordered (IIRC i talked the guy into throwing it in cuz I got a aluminium gt frame kit plus a relatively premium engine kit at the same time) but I had problems w/ it not quite fitting, then when i...
  10. burrus

    Going with this Specialized Crossroads

    Just picked this up for a song on CL. ($100) I've had a new Grubee Skyhawk 66cc kit sitting for over a month waiting to find the right bike. Wanted to go with something with a front suspension to sooth out that ride a bit. (2 past back surgeries). Also needed something big, as I'm 6'3" and...
  11. Shleppin

    Exaust!!!

    Looking to order exaust/expansion chamber for 2 stroke. Looking for what would be better. How much louder than are they than stock pipe.

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