need expantion chamber bad please help!!

[cr250mMxer]

i need a chamber for my 76 250 elsie i cant find one anywhere and i was going to make one but calculas is making me do this :bang: . please help or silplify for me im still in high school and only whent to pre algebra so im not to good at math

I NEED HELP PLEASE!

 

[wirefryer#85]

Surely there is some aftermarket outfit out there that makes pipes for the popular vintage machines.

The only other ideas, assuming that your current chamber is trashed, I can throw at you are;

Adapt a chamber off something else.

Fabricate a 'cone' style chamber. I attempted this years ago on a friends TM/RM hybrid and eventually gave up, it is not easy and there's a mile of welding involved. :whoa:

 

[cr250mMxer]

i dont even have a chamber i am building the bike from the ground up i got all the calculations all i need to do is get the metel welded but they dont make an aftermarket and i cant find a stocker

 

[dales298]

These guys do a quality job.
http://www.circlefexhaust.com/
I have a rocket pipe for one of my Huskys and they are good.
http://www.vintageiron.com/


Dale

 

[cr250mMxer]

thanks but both of those sites have pipes for 73-74 and 78-up i checked already so im taking my bike to my automtive instructers house and he is gonna help me cuase hes fixing his 74 this winter and he wants one to so im making my own the are legal to f=re=ace right? and what is tallest shocks i can have for the evo class?

 

[just_a_rider]

Bikebandit.com listed one under OEM but it was discontinued, only 564 bucks. Have you tried e b a y.
Good luck dude.

 

[cr250mMxer]

ya i tried every thing couldnt find one plus the pipe would be cheaper to make and the value of the bike will go up

 

[dales298]

I don't think the '76 will qualify for for the EVO class, but it might. Get your answers here>http://www.ahrma.org/. This is their online rulebook>http://www.ahrma.org/rulebook/index.htm.

Dale

 

[Sawblade]

Did you try http://www.red-racer.com/ ?