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Registered
Join Date: May 2020
Location: Bend,Or.
Posts: 165
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Noise Levels!
Recently purchased a 73 that was used as a track car. Its currently running headers and straight pipes/megaphones. Very LOUD! At some point i would like to get involved in track events. My question is..What type of noise restrictions are required ?
Any input would be appreciated ! Cheers, Mark. |
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Administrator
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Talk to the sanctioning bodies you want to run with and the tracks you want to run at. Noise level restrictions vary from site to site and sometimes from event to event.
--DD
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Pelican Parts 914 Tech Support A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling |
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Moderator
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Quote:
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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Track Noise
Agree with others . . . varies between tracks and events . . .
We use this for limited track sound levels . . . ha ha ha - - made for Laguna Seca but needed here in Arizona at one track with limits . . . Regards, ![]()
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2002 Porsche Boxster S Cobalt Blue/Blk/Blk Crew Chief for Son's 1978 Porsche 911SC Original Porsche Mocha Brown 3.8L NASA race car Previous Porsches: 1958 356 Red Coupe - 1972 914 Blue -1972 911T Coupe Aubergine |
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It's a 914 ...
Join Date: Jan 2008
Location: Ossining, NY
Posts: 2,492
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Congrats on the acquisition! You're in for some fun.
Some tracks do have noise limits. Most club events go by the track limits, but some clubs have their own limits. Both should be published, so should be easy to find. Tracks usually measure from trackside as you drive by. Open exhaust will be ~105db, stock exhausts are usually in the 80s or lower 90s. Unfortunately it's hard to measure sound reliably at home, but with a 911 it's usually easy to ask around here and find setups from other 911s that pass sound at particular tracks. |
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Registered
Join Date: Jan 2003
Location: Dublin, CA
Posts: 5,622
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This setup is pointing right which is the direction of the sound station going up the hill between T5 and T6. Should be pointing to the left.
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Sergio PCA - 37yrs / Ex-RGruppe #197 '04 GT3 (Halloween/SF Giants car) '11 E550 Coupe (Königstiger) |
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We were fortunate that the muffler system was built by the PO in CA and passed it along to my son when he bought the car . . . Regards, Roy T
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2002 Porsche Boxster S Cobalt Blue/Blk/Blk Crew Chief for Son's 1978 Porsche 911SC Original Porsche Mocha Brown 3.8L NASA race car Previous Porsches: 1958 356 Red Coupe - 1972 914 Blue -1972 911T Coupe Aubergine |
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Just don't show up @ an AX event.
They tend to get annoyed by race cars
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1980 911SC Fiberglass Turbo Flares F&R with a 3.6L conversion 869# AKA "Gemma" |
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Administrator
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Depends on the site and sanctioning body.
Kind of like the big tracks, actually. --DD
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Pelican Parts 914 Tech Support A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling |
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