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-   -   DB Meter (http://forums.pelicanparts.com/porsche-autocross-track-racing/423785-db-meter.html)

Tweety911 08-06-2008 09:21 AM
DB Meter
 
Can anybody recommend a good, fairly inexpensive, handheld Decibel meter for measuring the sound on a car (engine/muffler)?


S

HarryD 08-06-2008 06:06 PM
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.

trekkor 08-06-2008 07:23 PM
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

Tweety911 08-07-2008 08:40 AM
Quote:
Originally Posted by trekkor (Post 4106506)
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

trekkor 08-07-2008 05:20 PM
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

Tweety911 08-07-2008 07:31 PM
Quote:
Originally Posted by trekkor (Post 4108035)
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


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