• From: Columbia SC
  • Registered: 2010-09-12
  • Posts: 864

Topic: Db. LIMIT

I looked at the requirements for decibel limit for Lemons and it says 92db max that seems awful low. I looked at the track requirements at Kershaw and they say 105db is it really only 92?

2010, 26th @ CMP, 2011, 10th & 5th at CMP, 2012? (MIA), 2013 Spring CMP, 53rd, 2013 Fall CMP 44th, 2014 Barber 14th, 2014 CMP 46th, 2015 CMP 57th, 2015 CMP 80th, 2016 CMP 16th, 3rd in B class, Winner Judges choice, and First car under 2.0 liter Alex's lemon aide stand winner. 2017 WRL, Road Atlanta 43rd, 2017 NCM 9th O/A , 1st in B class, 2018 CMP 13th O/A 3rd in Class B
  • RobL
  • RobL
  • Lemons Staff Stalker
  • Offline
  • From: Philly area
  • Registered: 2009-04-30
  • Posts: 2,721

Re: Db. LIMIT

You will get called off the track for being "too loud."  It is enforced differently at different tracks. 

That said - I won't drive a loud car anymore.  It's just too hard to hear my radio, it's fatiguing to listen that drone, and you can't hear the other cars around you.  It's not worth the 5(?) hp that you gain from a straight exhaust.

--Rob Leone Schumacher Taxi Service
We won the IOE at Southern Discomfort.
We got screwed at The Real Hoopties of New Jersey  and we took cars down with us.
We got the curse at Capitol Offense but they wouldn't let us destroy the car.

RobL's Website

  • From: Shakopee, MN
  • Registered: 2009-10-05
  • Posts: 136

Re: Db. LIMIT

Being stuck in a car that's insanely loud for hours on end isn't a place you want to be. We ran good mufflers because ours were rusted all to hell and I'm extremely glad we did. It's far more tolerable to drive that way.

  • From: Columbia SC
  • Registered: 2010-09-12
  • Posts: 864

Re: Db. LIMIT

well I actually had a new exhaust run from the header back and one of those (albeit used ) crap can mufflers on the back of it but it sounds really loud. So I may have to find another muffler or add a resonator to it. I just saw on the rules where it said that this setup usually was enough.

2010, 26th @ CMP, 2011, 10th & 5th at CMP, 2012? (MIA), 2013 Spring CMP, 53rd, 2013 Fall CMP 44th, 2014 Barber 14th, 2014 CMP 46th, 2015 CMP 57th, 2015 CMP 80th, 2016 CMP 16th, 3rd in B class, Winner Judges choice, and First car under 2.0 liter Alex's lemon aide stand winner. 2017 WRL, Road Atlanta 43rd, 2017 NCM 9th O/A , 1st in B class, 2018 CMP 13th O/A 3rd in Class B
  • From: La Porte, Texas
  • Registered: 2010-09-13
  • Posts: 22

Re: Db. LIMIT

1) hi-flow cats don't muffle worth a darn.
2) straight-through perfed resonator muffles enough to pass tech and be liveable.
3) if only our 2" resonator were 2-1/2" to match the rest of the pipe!

Pucker Factor Racing #85 '91 Nissan Sentra SE-R (no, not a ex-SE-R Cup car)
  • From: Land Of Subarus, Colorado
  • Registered: 2009-04-30
  • Posts: 9,416

Re: Db. LIMIT

Getting busted for being too loud is pretty rare, but it does happen. Unless you've got a rotary or a big V8, a Cherry Bomb should be good enough.

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