Custom exhaust

[bgkid2966]

Does anyone know a formula to figure exhaust volume? I need to build a pipe for my 77 Exciter, I put a 540 from an XLV in it and I am told the pipe from the 340 is causing a backfire problem in the exhaust.

Any help is appreciated.

 

[SX700triple]

could you possibly use measurements from the XLV and mod the exciter pipe to work? may just need to add some length to the expansion chamber. I would think it's a little short for the bigger motor.

 

[bgkid2966]

The problem is chassis space. As it is I had to cut the hood up to clear the top of the engine. I am not sure if I will be able to fit the XLV pipe in or not. Either way I need to do some mod work to make it work. Just looking for any help I can find.

 

[bgkid2966]

I tried to fit the XLV pipe today and it is way to big to fit in the engine compartment even without the hood!
I am going to have to fix up the Exciter pipe and make it work.