ritchunt
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| posted on 17/8/11 at 03:50 PM |
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Track day noise limit
A couple of questions im planning on doing a couple track days again in the next few months but im unsure of the db reading of my 205 im going to buy
a db meter of ebay but do they use type a or b to test? And also i do not have a rev counter how will they determin my rpm to carry out the test? Will
this be a issue?
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will121
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| posted on 17/8/11 at 05:39 PM |
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Looking at my instructions I got from javelin for a track day on Monday its dBA range as for rev's think most noise testers know what 4500 rpm
sounds like which is a general test level for a 4 cylinder 6500 red line, I would just say you will have to rev it to a level that they consider is
acceptable, normal test is 0.5m from tail pipe at a 45 deg angle
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johnemms
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| posted on 17/8/11 at 06:01 PM |
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Can't you down load a widgit from the marketplace ?
For your phone 'db meter'
For all you iphone & android phone users 
jon
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eddie99
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| posted on 17/8/11 at 06:12 PM |
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Noise test will be at 3/4 max revs..... RPM will be needed, we had a broken RPM one trackday and used the multimeter to show a rough RPM
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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mark chandler
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| posted on 17/8/11 at 06:19 PM |
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I have an Ebay db meter
[img]NEW SILVERLINE SOUND LEVEL METER 50-126DB 633937 | eBay [/img]
It measures exactly the same level as the scrutineers meter at Goodwood, in my case to loud 
If I switch from A to B it seems to make little difference, the needle is just a little more stable but the actual value is pretty constant.
My car was knocking out 103db BTW
Regards Mark
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ritchunt
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| posted on 17/8/11 at 06:20 PM |
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Thanks i will try to sort something, ive never really needed one, i did think of downloading one but i would assume they would be pants how can your
phones speaker possibly be accurate
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LBMEFM
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| posted on 17/8/11 at 07:16 PM |
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NEW SILVERLINE SOUND LEVEL METER 50-126DB 633937
Item condition: New
Quantity: 8 available / 12 sold
£15.99 Buy it now
Four buyers are going to be disappointed
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bmseven
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| posted on 17/8/11 at 07:20 PM |
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Tested the Android Widget beside a good quality commercial DB Meter and the difference was almost non existent, I guess noise is noise.
BMW 7 Resource
Bures Pit anyone?
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DRC INDY 7
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| posted on 17/8/11 at 07:24 PM |
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quote:
Originally posted by LBMEFM
NEW SILVERLINE SOUND LEVEL METER 50-126DB 633937
Item condition: New
Quantity: 8 available / 12 sold
£15.99 Buy it now
Four buyers are going to be disappointed
There would have been 20 for sale in the first place hench 12 sold and 8 left 
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ritchunt
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| posted on 17/8/11 at 09:12 PM |
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Just tried a widget it was reading my tv at nearly 80dbs from around 10ft? On a low volume, Never mind ive ordered a proper one of ebay should have it
soom ill just test my car all the way up the rev range and see what its reading full bore, hope im not one of those 4 lol
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