Exhaust Level Limits & Measuring

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

Measuring car noise levels isn’t hard, but it depends a lot on year, number of cylinders etc, so you need to make sure exactly what limit applies to you and how its measured.

here is a link to the standard, go to the download section and download the pdf.

http://www.comlaw.gov.au/Details/F2006L01279/Html/Text#_Toc129579543

This is the exact test procedure

http://www.ntc.gov.au/Media/Reports/%289745A524-E60D-9B7C-835B-CDAF7DC19D8B%29.pdf

This is the page most of us are interested in

And this as well

So for example my car, a V8 manufactured in 1993, has to be under 91dB, measured at 3,300 rpm, measured 500mm from the tip at an angle of 45 degrees.

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