Anyone ever tested the sound level of your Cobra?

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#1 (permalink)

07-01-2003, 04:46 AM

750hp

CC Member

Join Date: Nov 1999

Location: Brisbane, Australia, Q

Cobra Make, Engine: Contemporary CCX3117 427FE

Posts: 4,381

Not Ranked

Anyone ever tested the sound level of your Cobra?

I'm interested to see if anyone has checked the volume of their car with an accurate decibel meter.

I went to an exhaust shop today to see for certain how loud my car was. Our current laws require testing to be performed from a point as though you were basically taking a close "rear 3/4" photo. The decibel reading is taken at an engine speed equal to 3/4 of peak torque rpm (ie: peak torque at 4000rpm, decibels tested at 3000rpm). Maximum allowable is 90 decibels.

At idle, my car was 103.

At 3,500rpm, it went off the gauge. The gauge read to 130.....

A loud car never hurt anyone, did it? I'm going to have to do something to take the edge off the noise, but I really don't know for sure what to do....

__________________
Craig

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