Quote:
Originally Posted by Old Tele man
And, (maybe?) you aren't restricted to ROUND header pipes (?!?!?):
...which remind me of waveguides used in microwave radars! |
Besides being far more difficult to find as mandrel-bent pieces and harder to fabricate, flow would be worse due to interference drag at the 90° intersection between the walls. The only reason square-ish runners are used in intakes or exhausts is for transitions dictated by other components (e.g. bolts, pushrods, adjacent runners).