The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes
07-23-2017, 07:56 PM
#61
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Sorry to ressurect this thing, but are those listed lengths for each exhaust pipe, or total for the exhaust. I'm assuming it's for each pipe, but just wanted to be 100% sure.
02-06-2020, 10:57 AM
#64
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How to calculate? I have seen the formula for figuring the desired J pipe length but my question is if this formula works for a true dual system? I don’t want to build the wrong size J pipe due to having a true dual system
Thanks
Thanks
03-19-2020, 12:49 PM
#65
I know this is an old thread but I had a question I didn't see addressed. Is longer better for this application? In other words if I make a 30" pipe does it address all drone from 1,500-2500 (as an example) or is it targeted at only a specific RPM. Like 30" would be suited best for 1,500 plus or minus a little but would not work the best for 2,500.
