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Tweety911's Avatar
 
Join Date: Jan 2006
Location: WA
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DB Meter

Can anybody recommend a good, fairly inexpensive, handheld Decibel meter for measuring the sound on a car (engine/muffler)?


S


Last edited by Tweety911; 08-06-2008 at 09:26 AM..
Old 08-06-2008, 09:21 AM
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I do not know you budget, but a quick google search (using db meter as my terms) finds these two vendors:

Davis

Action-Electronics


There are many more.
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Last edited by HarryD; 08-06-2008 at 06:09 PM..
Old 08-06-2008, 06:06 PM
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Radio Shack sells one for cheap.

Make sure you set it on DbA not DbC.

I had and assistant hold it at 40', 50' and 60' intervals roadside as I made redline passes.

I passed the 103 DbA limit. Loudest I could get at 40' was 99DbA.


KT
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Old 08-06-2008, 07:23 PM
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Quote:
Originally Posted by trekkor View Post
Radio Shack sells one for cheap.

Make sure you set it on DbA not DbC.

I had and assistant hold it at 40', 50' and 60' intervals roadside as I made redline passes.

I passed the 103 DbA limit. Loudest I could get at 40' was 99DbA.


KT
Were you able to compare Radio Shack reading with any of the db readings at the tracks you run at? Were they close?


S
Old 08-07-2008, 08:40 AM
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The only way to do that comparison would be to set my meter next to their's and then watch the result.

No, I haven't done that.

But I was able to meter my car with the quiet exhaust and stay below Laguna's VERY strict sound policy at 92 DbA. I pegged 87.

So for my purposes, it worked great!


KT
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Old 08-07-2008, 05:20 PM
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Quote:
Originally Posted by trekkor View Post
The only way to do that comparison would be to set my meter next to their's and then watch the result.

No, I haven't done that.

But I was able to meter my car with the quiet exhaust and stay below Laguna's VERY strict sound policy at 92 DbA. I pegged 87.

So for my purposes, it worked great!


KT
Cool.. I will give it a shot. Thanks for the info..

S

Old 08-07-2008, 07:31 PM
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