Thread: Does FI CBE have any drone or rasp?
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Old 07-30-2010, 07:06 PM   #18 (permalink)
Zsteve
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Originally Posted by '10Anamoly View Post
If your drone is like mine, from 2200rpms to around 2700rpms, 28-30" pipes, one per site, should do the trick. Your drone frequency should be close to mine.

I used a mic to record the drone and then analyzed it with Audacity. Drone occurred at 125hz-ish. My pipes are 28" and its dead silent from 2300rpms to 2700rpms and no drone above or below.

Pics are in the intake/exhaust thread I posted about recently near the last posts.

LINK
do yo have any other resonators on your exhaust? I have the 12 inch ones with my FI. So would that change the freq? So you have your tubes not going the same direction as the mufflers?
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Last edited by Zsteve; 07-30-2010 at 07:10 PM.
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