90dB

dereck5475 · 05-23-2011, 06:24 AM

Raceway here saids car cannot exceed 90dB at 50 feet,
I have a 70mm tsudo, im pretty sure it is over 90dB.. then again is it?

CivicSiRacer · 05-23-2011, 07:32 AM

dB unfortunately has many factors that can contribute to how loud an exhaust is. Air temp, humidity, which way the exhaust is facing.

Most of the N1 type exhausts hit around 95-98dB. If you use the silencer it brings it down to about 85dB (give or take).

I know some shops can test it for you or you could go to Radio Shack and purchase a sound meter.

dereck5475 · 05-23-2011, 05:42 PM

Quote:

Originally Posted by CivicSiRacer

dB unfortunately has many factors that can contribute to how loud an exhaust is. Air temp, humidity, which way the exhaust is facing.

Most of the N1 type exhausts hit around 95-98dB. If you use the silencer it brings it down to about 85dB (give or take).

I know some shops can test it for you or you could go to Radio Shack and purchase a sound meter.

thanks

05-23-2011, 06:24 AM	#1 (permalink)
dereck5475 Senior Member Join Date: Dec 2010 Location: San Francisco Posts: 3,641	90dB Raceway here saids car cannot exceed 90dB at 50 feet, I have a 70mm tsudo, im pretty sure it is over 90dB.. then again is it?
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05-23-2011, 07:32 AM	#2 (permalink)
CivicSiRacer Member Join Date: Aug 2007 Location: Landisville, PA Posts: 88 Mike	dB unfortunately has many factors that can contribute to how loud an exhaust is. Air temp, humidity, which way the exhaust is facing. Most of the N1 type exhausts hit around 95-98dB. If you use the silencer it brings it down to about 85dB (give or take). I know some shops can test it for you or you could go to Radio Shack and purchase a sound meter.

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