whos got the best expansion chamber?

[willfargo]

So what if i used the gas line that Double Trouble used on his stock exhaust for relocation?

http://www.motoredbikes.com/album.php?albumid=1496&pictureid=10099

would that still be adjustable like the J-tube if it was shortened or lengthened? i'm not super comfortable with how the pipe fit on to my bike with the copper connectors

 

[ken murphy]

So what if i used the gas line that Double Trouble used on his stock exhaust for relocation?

http://www.motoredbikes.com/album.php?albumid=1496&pictureid=10099

would that still be adjustable like the J-tube if it was shortened or lengthened? i'm not super comfortable with how the pipe fit on to my bike with the copper connectors

ok,then if your guna try sumthin like that,I use copper all the time 5/8 I.D.is fine for a stinger.
so my suggestion for that set up is soft copper and get the correct bend u want and braze it stay away from those compresion fittings.
so try to lessen the length of the space between the cylinder and the end of the pipe.wiki two stroke motors and they show an expanshion chambers.
For best results gut the pipe & put a silencer behind it.

 

[willfargo]

I hadnt even thought of using soft copper! great idea.
I'd like to know what Pablo thinks about using this for my SBP Expansion Chamber

 

[willfargo]

So i may be COMPLETELY confused here. when it said shorten the straight header, i was shortening the straight piece of copper pipe from the exhaust port to the fittings. is that wrong or am i supposed to be shortening the actual J shaped tube to the chamber? also, i replaced the 45 degree with a 90 to fit on my bike. will that cause any issues?