- Local time
- 5:25 PM
- Oct 14, 2016
- Ft Erie Ont
To be honest a straight pipe will not give the results of a chambered pipe, the convergent or baffle cones angle is what determines the amplitude of the return wave, a straight pipes return wave only produces the blocking pressure required to trap the charge as the piston closes the exh port.In theory they actually can. The principles of resonance wave tuning work with exhausts, and you could time the pulse wave to return at the right time to have the same effect as an expansion chamber. I doubt anybody wants to ride around like that though, as the header pipe ends up being quite long. Not to mention, extremely loud.
The return waves amplitude is what effectively super charges the cylinder by over powering the in coming fresh charge and over filling the cylinder.