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OS .21xm

Old 09-17-2007, 10:02 AM
  #1  
Mr3Putt
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Default OS .21xm

Is this engine relatively quiet? I have a K&B 7.5 that is very LOUD! Looking for a quiet engine or a way to make mine quiet
Old 09-17-2007, 10:39 AM
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Cristian Aldana
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Default RE: OS .21xm

Hi Guy OS Xm engine is very quiet with stock muffler and great power, for K&B.45 and only know if it have a pipe you can fit a noise reduction. i recomended OS. What model of K&B.45 do you have? normal, pro, semi pro or super pro?

Good Luck

Cristian
Old 09-17-2007, 10:41 AM
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Cristian Aldana
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Default RE: OS .21xm

Hi Guy OS Xm engine is very quiet with stock muffler and great power, for K&B.45 and only know if it have a pipe you can fit a noise reduction. i recomended OS. What model of K&B.45 do you have? normal, pro, semi pro or super pro?

Good Luck

Cristian
Old 11-24-2007, 11:16 AM
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solo2004
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Default RE: OS .21xm

hi on my k b 7.5 to take the crackel off the engine i stuck 4 alluminium pipes in the exhaust outlets about 2.5 inch long , sticking out about inch half . tight fit bit of silacoon round when in place wored a treat hope thi helps anyone
Old 11-24-2007, 11:18 AM
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solo2004
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Default RE: OS .21xm

hi on my k b 7.5 to take the crackel off the engine i stuck 4 alluminium pipes in the exhaust outlets about 2.5 inch long , sticking out about inch half . tight fit bit of silacoon round when in place worked a treat hope this helps anyone
Old 11-25-2007, 05:09 PM
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Default RE: OS .21xm

If you are running a tuned pipe you can add a muffler to the end and chop about half the noise. tower hobbies has what you are looking for.
Old 11-26-2007, 08:40 AM
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Default RE: OS .21xm

All nitro engine are loud thats the nature of them , you have to muffel them down........ but remember loud pipes save lives ha ha ha.
Old 11-26-2007, 06:07 PM
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Sean Bowf
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Default RE: OS .21xm

ORIGINAL: f16man

If you are running a tuned pipe you can add a muffler to the end and chop about half the noise. tower hobbies has what you are looking for.
Any links?? Or brand names?? I have looked at tower before for an add on muffler (silencer), and had no luck.

Sean
Old 11-26-2007, 08:12 PM
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Default RE: OS .21xm

Mufflers can be found from these 2 online locations. If you don't see what you would like, try contacting them and I am sure they have what you are looking for.

www.cdrace1.com

www.rumracingproducts.com


Paul

Also this link is for a muffler for a OPS3280 : http://woodrcboatproducts.com/custom...pe_muffler.htm
Old 11-27-2007, 11:59 PM
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Default RE: OS .21xm

You are rite Sean I was just on there and could not find any add on mufflers I know I've seen them somewhere, guess it's that dreaded old mans thing CRS [ cant remember sh!!!!!!t]
Old 11-28-2007, 12:09 AM
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f16man
 
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Default RE: OS .21xm

Yup that rumrunner muffler is the one I had in mind, not a bad price either.

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