Eric McLoughlin Posted May 3, 2000 Share Posted May 3, 2000 On Monday, my Seven failed the dreaded Goodwood noise level test (and I missed out on a Track Day as a result). At 6,000 rpm the reading was 106 decibels. The Goodwood scrutineers were surprised it was that high. Is 106 too high? If so, what should it be and what might be the problem? They suggested the exhaust might need re-packing. The Seven is a 1600 Classic SE with a rear exitibg exhaust. On a secondary point, what other tracks or sprint venues have noise limits? Link to comment Share on other sites More sharing options...
Aidan Parte Posted May 3, 2000 Share Posted May 3, 2000 My Caterham just scraped through the Goodwood noise test in 1998 - if I remember rightly, the noise (music) from mine was about 105 dB at only 4000 rpm. I have a 1600 X-flow with single downdraft Weber and rear-exit exhaust. Your value of 106 dB doesn't seem too bad in comparison, although the decibel scale is logarithmic. What I'd like to know is why do people live near Goodwood if they don't like the sound of engines? It is a bit like moving from a town to the country and complaining about the smell! Makes me seethe. Link to comment Share on other sites More sharing options...
I.Mupferit Posted May 4, 2000 Share Posted May 4, 2000 Try calling James Whiting in Ashford. He has done a lot of work on suitable silencers (for Goodwood in particular). He may, by now, have a solution to this problem. Link to comment Share on other sites More sharing options...
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