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David Morton · 03-25-06, 11:17 AM

Indy track days usually have a noise limit of 105dba and the GP track days are normally quieter, and are measured at 98dba.

03-25-06, 11:17 AM	#4 (permalink)
David Morton David Morton Lifetime Premier Supporter Join Date: Nov 2002 Location: Marlow, England GT40: The Jewel on th Posts: 2,513 Rep Power: 35	Re: Brands Hatch GP circuit. Indy track days usually have a noise limit of 105dba and the GP track days are normally quieter, and are measured at 98dba.