Quote:
Originally Posted by magicoolbus
Had to research the "J-Tube." AKA Helmholtz tubes. Very interesting idea. Might do the same.
How did the exhaust shop decide what length to use?
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It is a set length depending on your driving habits and RPM of the drone. Mine needed to be 28.25 inches long overall. There are charts in some of the writeups. I will see if I can find one.... If I do I will edit this post and add it.
Edit: Here is the chart. All I did was drive the speed I most often drive, note the RPM at that speed and check the pipe length at that RPM on the chart. I don't drive interstates much so I just set it for the RPM at 60mph and it seems to work pretty good for all speeds. If a person is concerned about multiple speeds the second picture shows an adjustable pipe.
LockDoc