decibel level for AX, Whats too much? Options

[Rough_Rider]

So i popped off the banana muffler & fired her up on the driveway, ferking heck thats loud. I reckon 105-110db.

Presumably thats how loud it'd stay with megaphones or some straight pipe!! Dang. Sound good though (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) just need earplugs.


Question is how loud is too loud for AX / track venues. circa 95db?? Didn't see anything specific in PCA or SCCA rules.

[Joe Bob]

88-92 are the most normal limits. Each site will let ya know. As Herzog mentioned, they use the dbA scale....that's important as some morons don't know that the meters most always default to "C" scale when turned on and off...which depending on the "tone" of your car can give false limits.

I was black flagged once and I asked to see the meter...yup in C mode. I pointed it out and then showed them their own rules...they still were pissy...but consider the source it was a PCA event.

San Diego @ Jack Murphy was/is 92 with a rumor to 90 soon, Laguna last I heard was 88.....the tracks that are in the boonies usually don't have limits.

Be advised...MOST stock motors lose bottom end w/o a muffler providing back pressure. You MIGHT gain some on the top end....but I like the low end grunt.

Manfred runs better with a 2-1 Bursch than with the zoomies....same with Frank and my 3.6 powered 911.

YMMV