Exhaust 48cc & 80cc exhaust pipes

Discussion in '2-Stroke Engines' started by Dockspa1, May 26, 2007.

  1. Dockspa1

    Dockspa1 Guest

    Question to whoever,
    Do they keep the same size exhaust pipes on the 48cc as the so called 80cc in these chinese kits?
    I think they are the same and so if they are designed for the 48cc then they should bo opened up about 1/8 to 1/4 inch. Right?

  2. Guest

    Guest Guest

    You may proceed with the operation.....

    Actually, if you just de-baffle, you will make alll kinds of extra noise and gain a small improvement in low end acceleration and maybe a bit on the top.
  3. gone_fishin

    gone_fishin Guest

    imo, the exhaust pipe (and intake) should/could be better matched to the port...i bet there's a 20% reduction in volume from the (rectangular) port to the (round) exhaust pipe.

    btw-this talk of increased noise. i cut the baffle all the way off, then replaced the muffler cap. i ask all the time & noone in town thinks it's too loud. granted, i usually avoid asking old ladies, tho.
  4. locoWelder

    locoWelder Guest

    yes the pipe is the same for all 3 sizes of motor, now if you want to make some preformance improvments add an expantion chamber to your set up