I'd call that a megaphone, doesn't a "funnel" imply flow in the other direction?
8 comments:
Dave
said...
I agree with you, but it looks like "funnel" was the common term they used back then (and still do in marine engineering). I wouldn't say "megaphone" but maybe "expansion pipe?"
Actually "expansion chambers -or pipes-" describes the sausage-shaped two stroke exhausts pioneered by Water Kaaden. Joe Craig of Norton introduced the four stroke conical exhausts to help spread out the usable RPM range, bringing on expressions like "megaphonitis" for RPM ranges where they were detrimental, and "coming on the mega" for the point where they started working. I've not seen "funnel" used before.
8 comments:
I agree with you, but it looks like "funnel" was the common term they used back then (and still do in marine engineering). I wouldn't say "megaphone" but maybe "expansion pipe?"
Actually "expansion chambers -or pipes-" describes the sausage-shaped two stroke exhausts pioneered by Water Kaaden. Joe Craig of Norton introduced the four stroke conical exhausts to help spread out the usable RPM range, bringing on expressions like "megaphonitis" for RPM ranges where they were detrimental, and "coming on the mega" for the point where they started working. I've not seen "funnel" used before.
Could it be a USA term versus European?
"Intake trumpet" is another one where flow is opposite conventional thought.
All right I'll play the pedant to the end, those are called "velocity stacks". ;-), but the French do call them "cornets" !
Next you'll be tryna tell us there's no more Yugoslavia.
I'd say "megaphone" (Scotland). D.
There were different megaphone tapers used, though...
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