So what would happen if the slight bleed holes in chamber 1 and chamber 5 get opened up more? In first order this will let more of the primary exhaust go straight out of the tail pipes. This is almost the same as the exhaust bypass pipes on the PSE. The big difference is that more of the primary exhaust left (yellow) is going to 'hit' the primary exhaust from the right (red). This could lead to these two exhaust sources starting to 'beat' against each other, i.e. drone.
Quote:
Originally Posted by particlewave
The arrow diagram posted earlier in this thread is incorrect and misleading. This is what's happening:
A) Following the left side (yellow), exhaust enters chamber 2 (with slight bleed off to chamber 1 for mixing with right side (red) exhaust through small holes in inlet pipe). From chamber 2, it is split and goes to chamber 5 and center chamber 3 where it is mixed with the right side (red) exhaust and dumped back into chambers 2 and 4.
B) From chamber 2, exhaust goes to chamber 5. In chamber 5, exhaust is again mixed with right side (red) exhaust, but to a lesser degree than the center chamber (see small holes in inlet pipe).
C) Chamber 5 exits directly to exhaust tip 
So, by drilling holes in the exit pipe, you are creating flow from the center mixing chamber directly to exit, essentially creating a small bypass directly from inlet to exit with only the center chamber pipe working as a slight flow restrictor/baffle (similar to the PSE, IIRC...except that the PSE uses an exterior pipe to do the same thing). |