Meeerrrk
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| posted on 23/9/08 at 03:27 PM |
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noise meter
want a noise test done on my car, so i know what to expect when i arrive at the next track day (ie if they will kick me out!)
where could i get it done?
For Sale : 2008 Aries/Stuart Taylor Motorsport Locoblade (954 Blade)
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tomgregory2000
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| posted on 23/9/08 at 03:37 PM |
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http://www.maplin.co.uk/Module.aspx?ModuleNo=46362
That should do you
Tommy
[Edited on 23/9/08 by tomgregory2000]
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Guinness
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| posted on 23/9/08 at 03:46 PM |
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I've got one of those Maplin sound meters sat here on my desk. (I needed one for work, honest).
If you cover the cost of registered post there and back you can borrow it for a week or so.
HTH
Mike
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Meeerrrk
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 posted on 23/9/08 at 06:55 PM |
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Wow, thank you
you have email
For Sale : 2008 Aries/Stuart Taylor Motorsport Locoblade (954 Blade)
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Macbeast
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| posted on 23/9/08 at 08:24 PM |
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It all depends what meter they are using at the track. Note Maplin's answer to a question - it is not and cannot be calibrated- so really the
measurement is meaningless.
Also note it claims to measure up to 130 dB. This must be about 60 times the sound level of a 747 taking off 100 yards away 
Edit to add
The Maplin could give you a relative measurement. You would have to take a measurement on a car that you know had passed at that particular track and
then compare that reading with your own car.
[Edited on 23/9/08 by Macbeast]
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BenB
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| posted on 23/9/08 at 09:45 PM |
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Yes!!! That's what's annoying about places like Maplins selling "noise meters". Without calibration a "noise
meter" is almost useless. Good for comparative measurements but for "will this be okay for a track day" definite measurements
it's no good. That's what proper dB meters cost £££££££££££.
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Meeerrrk
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| posted on 23/9/08 at 10:15 PM |
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oookkkaayy, so where do i get it done?!
For Sale : 2008 Aries/Stuart Taylor Motorsport Locoblade (954 Blade)
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bimbleuk
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| posted on 24/9/08 at 07:43 AM |
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But a cheap noise meter. Go to a track day at the circuit you want pass at. Compare your readings to the circuits measurements on their kit.
Irrelevant if their kit is calibrated you just want the reading on yours compared to their kit which is deemed acceptable!
Maybe not convenient if the circuit is several hours away! As I'm close to Castle Combe I've taken my car over on test or track days and
asked for a sound reading before booking an event. It's in their interest to have cars pass the noise requirements otherwise they can
potentially lose their license from complaints.
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907
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| posted on 24/9/08 at 04:00 PM |
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Hi.
Just to spring to the defence of Maplins....
I bought a meter from them and tested it against a car that had just passed SVA at Norwich.
It was spot on.
It 's also capable of calibration although I have never needed to.
Paul G
 
Rescued attachment 000_0437-s.jpg
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Macbeast
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| posted on 24/9/08 at 05:35 PM |
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And when you go to the track, don't forget to ask them which noise-weighting curve they're using 
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