reason i ask is i have that old rusty expansion chamber off that little minibike i found at my grandpa's and i dont want to F up my muffler if it isnt going to gain me anything.
One thing to keep in mind is that the head pipe is probably too long and the pipe too short. I would cut off a couple of inches the stock head pipe and move the expansion chamber further forward. I went through this on my conversion. I am sure that you have done it but get a rear mount on it before you ride it.
Nice conversion.
Trafficjamz wrote:
fightingplankton wrote:no increase in performance?
Hard to tell. There is no decrease in performance.
elitedio wrote:How much did you change the jetting?
One thing to keep in mind is that the head pipe is probably too long and the pipe too short. I would cut off a couple of inches the stock head pipe and move the expansion chamber further forward. I went through this on my conversion. I am sure that you have done it but get a rear mount on it before you ride it.
Nice conversion.
I did not change the jetting at all
I did not weld the rear bracket because I figured I would need to change it several times.
Any actual measurements or caculations that would help?
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
as did i i cut and welded heaps but i also experimented with different shaped chambers to see what the difference was got one on there now that works good i wouldnt say perfect i want to make a new header pipe from the jug down and loose the two 90. bends the factory pipe has