Drone Killer

Gary E

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Never heard a true dual but I imagine it has a better tone than the corsa

Sent from my SM-G781U1 using Tapatalk

I don't know about the sound difference as I have never listened to or measured the Corsa's. I'd like to, to be able to compare them to what I have.

This thread is as close as there is to what I have. It has a sound video in it.

https://www.fordraptorforum.com/threads/stainless-works-lightning-exit-sound-test.60248/

It was done before the installation of the Helmholz resonator. I don't think a sound clip will capture any level of drone. Otherwise I would have done an interior one similar to the previous one.

The previous one didn't really capture the interior sound level. The db meter is what shows the actual difference. The meter would measure drone. Would need a frequency gauge for that.
 

bubbarob

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Bumping this as I'm looking to do this in the next week or 2.
I find I have drone from ~1800-2200 rpm.

Do you choose the length based on when it starts? 1800RPM is ~27" j pipe
 

Gary E

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Bumping this as I'm looking to do this in the next week or 2.
I find I have drone from ~1800-2200 rpm.

Do you choose the length based on when it starts? 1800RPM is ~27" j pipe
Personally, I'd go with the middle of the range, which is 2000 RPM. From my experience The Helmholz pipe will not rid the drone in the entire 1800 to 2200
RPM range, but it will help. The pipe can be added on to if needed.
 

Jakenbake

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Just to add, and I don’t know this 100% for sure, but I believe you can run more than (1) j pipe. I “think” that corsa might do this.
 
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Canuck714

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Awesome, thank you both. Will go for mid range and see how it works.
I chose to target the start of the drone and wished I had of picked closer to the middle (1900 ish) as that was where highway speed/drone was the most obvious.
26 to 26.5 inches probably would have been a better spot for my truck, but I think this is all subjective to what system you run and how sensitive you are to the drone
 

bubbarob

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Thanks for the insight, and agree. ~2100 is the worst point of the drone for me too. Will use that as the guidance for the length of J Pipe and see how it works out
 
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Canuck714

Canuck714

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You can always cut it an inch too long and then fine tune to the length you want once you run it.
I always said I would lop of some length on mine, but never bothered..lol
 
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