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Old 04-01-2008, 02:36 PM   #1
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Questions?? Making an R/C run quieter...

I have a friend who has a Sportworks Turmoil RTR buggy who runs it on a home-made track in his back yard. There is one neighbor who is complaining about the noise. He would like to find an add-on silencer or something to replace the stock muffler that would quiet down the engine as much as possible without too much of a performance hit (not sure if those conditions are mutually exclusive).

Any ideas on where to find one? I looked around and found some for R/C airplanes, but nothing (so far) for cars. Thanks!

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Old 04-01-2008, 02:57 PM   #2
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There are sound restrictions across the pond somewhere and they are able to overcome the issue with special tuned pipes. Wish I could be more help, but that should be the direction you're looking. I think its called EFRA... do a search and see what you come up with.
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Old 04-01-2008, 02:57 PM   #3
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Get a new 3 chamber pipe (that's as quiet as you can get right now) & install an intake air box (seen in 1/8 on-road's now). If that's not quiet enough, make an electric conversion.
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Old 04-01-2008, 03:30 PM   #4
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Electric conversion is probably the only solution. The pipes in Europe do make the cars be within the sound levels allowed, but in a neighborhood anything above 80 db is probably a problem.... There is no way to silence a .21 that much without losing a lot of performance.....
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Old 04-01-2008, 04:04 PM   #5
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I love the sound of a good-running nitro, but when you know there are people around (neighbors, etc...) that are upset over the noise, it takes the fun out of it for me. I don't like to be the @#$hole... I respect other people.

So.... maybe it is time to go electric, or maybe go to a small block 1/10 truck that are much quieter and less "bra--a--a-a-a-a-a-p!!!"
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Old 04-01-2008, 05:01 PM   #6
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EFRA... I can't honestly say i could tell an EFRA pipe going by based on noise level, and i work at a track 5-7 days a week where people use them and practice with them for sanctioned events.
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Old 04-02-2008, 06:23 AM   #7
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Quote:
Originally Posted by RBMike View Post
Get a new 3 chamber pipe (that's as quiet as you can get right now) & install an intake air box (seen in 1/8 on-road's now). If that's not quiet enough, make an electric conversion.
Do you know of any links I can check out? Thanks!
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Old 04-02-2008, 06:29 AM   #8
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Quote:
Originally Posted by glassdoctor View Post
I love the sound of a good-running nitro, but when you know there are people around (neighbors, etc...) that are upset over the noise, it takes the fun out of it for me. I don't like to be the @#$hole... I respect other people.

So.... maybe it is time to go electric, or maybe go to a small block 1/10 truck that are much quieter and less "bra--a--a-a-a-a-a-p!!!"

I hear ya'. He has several neighbors around him and all have no problem with the buggy except ONE Seems that is the way it always goes. I am afraid an electric conversion is probably out of the question (shortage of funds), and I don't think he wants to turn around and spend more money for another vehicle
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