fabricate cone pipe

[silly]

no

[Heniz]

havnt used it myself but i talked to another fitter turner engineer years ago at a motocross club day who made a similar pipe for his 2002 cr125. made it out of stainless plate 1.5mm thick and it took him weeks to finish but it did look awesome esp with the stainless blue and heat colours. He did mention the performance was good but he was by far not an expert racer.

He used a program called two stroke pipe wizzard and i remember looking into it back then and it was kinda cool you can design your own tuned pipe for the exact variables you want and then it prints out in flat sheets the exact peices you need to cut and mold to make the pipe. It would pay to have access to a sheet metal roller to make things easy for you.

heres some relevant info i quickly found on google. happy tinkering people

https://www.instructables.com/id/Build-a-Tuned-pipe-for-a-2-stroke/
https://www.buildandclick.com/html/tuned_pipe.html

[1901306708]

Yup you will need a roller.

Stainless is nice but tough to work with

Some people think steeper cones make more power. Sometimes yes sometimes no.

Some generalizations that are usually true:
-Add length to the header and it moves the whole power curve lower
-add length to the belly and it will smooth out the peak. Broader torque.

A program is only a program. Someone designed it. You can still tune a pipe for what you want to do. Ie more peak, broad power, less rpm, more rpm.

A lot of it has to do with how good your cylinder will flow too. More aggressive pipes will only work on a good cylinder

[Kawafornication]

I am sure with a bit of searching somebody will have templates online that they will share, this one was for a Mugen CR if I remember correctly, looks like a lot of work but you can not fault the looks of a nice cone pipe!