Noise Regulations Question
30 January 2007, 08:33 PM
#1
Unmapped 12.4s @ 105
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Location: Newcastle. 330bhp-289lb/ft @ 1bar boost - 12.4s @ 105mph
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Noise Regulations Question
I've just notice that the noise level for no pro class entries is 103db.
My car has a Revolution downpipe and Nur Spec R fitted. Thats never going to pass without the bung in, is it?
My car has a Revolution downpipe and Nur Spec R fitted. Thats never going to pass without the bung in, is it?
30 January 2007, 08:59 PM
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It also says it is measured at 1m from the exhaust tailpipe. Is this correct?? The MSA guidelines state 0.5m from the tailpipe.....
Just checking as it will make a difference
Just checking as it will make a difference
30 January 2007, 10:59 PM
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31 January 2007, 04:03 PM
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\m/ ^_^ \m/
erm, this is a static test not a drive by at WOT 
they tested in the middle of the handling circuit last year as to avoid any surrounding noise interfering, mine was around 90 if i remember correctly and that's not exactly quiet, have a look at this exhaust test a mag did, gives dbs for idle etc. Toyota Celica Exhaust Test - Tech Review - Turbo Magazine going to be slightly different for an Impreza but should give a ballpark 
they tested in the middle of the handling circuit last year as to avoid any surrounding noise interfering, mine was around 90 if i remember correctly and that's not exactly quiet, have a look at this exhaust test a mag did, gives dbs for idle etc. Toyota Celica Exhaust Test - Tech Review - Turbo Magazine going to be slightly different for an Impreza but should give a ballpark
01 February 2007, 08:54 PM
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it should read 0.5m @ 45 degrees to be fair, will ask Shaun to ammend, and yes it is a static test.
Anyone unsure of their cars noise limit can have a FREE noise test at Elvington rwyb with Straightliners on 11th March (this is a 1/4m rwyb day if you wish to practise, cost £45 approx on day, open to anyone).
Anyone unsure of their cars noise limit can have a FREE noise test at Elvington rwyb with Straightliners on 11th March (this is a 1/4m rwyb day if you wish to practise, cost £45 approx on day, open to anyone).
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