exhaust noise limit

My CAV will be going through the SVA test in February. One of the tests will be to measure exhaust noise level at 3/4 maximum power rpm,which works out to be about 3500-4000rpm for my engine. I have a 400 fhp ford 302 and CAV headers,muffler and tailpipes.
Am I likely to pass the noise limit of 101db? Is it wise to quieten the exhaust using super-traps before the test?

 

[Bob Childress]

Hi Syed2,

My own testing probably does not match the test conditions of the SVA but I did get measurements for both the stock CAV system and the stock system with SuperTrapps at various RPM levels. See the previous thread: "What type of mufflers are you running? [Re: Neal] #57692 - Fri May 13 2005 07:32 PM."

Good luck with the test. Be sure to let us know the outcome details.

Bob

 

[Lee]

Supertrapps may reduce the noise, but will they pass SVA? It looks like they would fail the sharp edges tests. Anyone know?