SCDA Lime Rock HPDE Day - Noise Question
Hi Everyone,
I am seeking first person experience with HPDE days at Lime Rock. I am planning to head up there on March 30th to do a day with SCDA, but I am worried my Invidia q300 (with stock cat) will break the 86db limit. Has anyone on here run there with a q300 or know someone who has? Any other insight for Lime Rock track days? Thanks! |
What distance is the noise measured? Q300 was in excess of 106dBA the two weeks it was on my car, but that's measured close to the exhaust. Surprisingly the SPL meter "ap" on my iPhone was within a dBA or so of my OSHA certified meter so you should be able to at least ball park your noise level easily.
-- Chuck |
Originally Posted by RAP1D
(Post 24567316)
Hi Everyone,
I am seeking first person experience with HPDE days at Lime Rock. I am planning to head up there on March 30th to do a day with SCDA, but I am worried my Invidia q300 (with stock cat) will break the 86db limit. Has anyone on here run there with a q300 or know someone who has? Any other insight for Lime Rock track days? Thanks! With the exception of our May 22nd and September 18 unmuffled events, all cars must be muffled to 86dB at all Lime Rock Park events. Lime Rock has a zero tolerance policy towards cars that exceed 86dB. |
Some of the SCDA events/clinics look interesting. But not interesting enough for me to fit a roll bar to the car.
Places like VIR have no noise restrictions whatsoever but being out in the country helps. -- Chuck |
Originally Posted by Chuck S
(Post 24567727)
What distance is the noise measured? Q300 was in excess of 106dBA the two weeks it was on my car, but that's measured close to the exhaust. Surprisingly the SPL meter "ap" on my iPhone was within a dBA or so of my OSHA certified meter so you should be able to at least ball park your noise level easily.
-- Chuck
Originally Posted by freq
(Post 24567728)
Some days there is no noise limit. It kinda depends on what day / date SCDA has scheduled.
Swap on an OEM exhaust to avoid any issues?
Originally Posted by Chuck S
(Post 24567740)
Some of the SCDA events/clinics look interesting. But not interesting enough for me to fit a roll bar to the car.
Places like VIR have no noise restrictions whatsoever but being out in the country helps. -- Chuck |
Originally Posted by Chuck S
(Post 24567727)
What distance is the noise measured? Q300 was in excess of 106dBA the two weeks it was on my car, but that's measured close to the exhaust. Surprisingly the SPL meter "ap" on my iPhone was within a dBA or so of my OSHA certified meter so you should be able to at least ball park your noise level easily.
-- Chuck |
Cursory web search indicated the noise restriction is always at Lime Rock -- their restriction, not the event sponsor.
I want a hard top even less than I want an aftermarket roll bar. :) I need more research on what track will let me use my S2000 in a performance driving school other than Mid-Ohio which is a day's drive. - Chuck |
Originally Posted by Chuck S
(Post 24567770)
Cursory web search indicated the noise restriction is always at Lime Rock -- their restriction, not the event sponsor.
I want a hard top even less than I want an aftermarket roll bar. :) I need more research on what track will let me use my S2000 in a performance driving school other than Mid-Ohio which is a day's drive. - Chuck Hopefully I can find someone to trade me a nice quiet aftermarket exhaust, this q300 came on the car when I bought it and I really wouldn't miss it. |
Pretty sure the Tanabe Medalion Touring is quiet enough but still louder than stock. But there are more than enough exhaust threads here. :)
-- Chuck |
Originally Posted by Chuck S
(Post 24567782)
Pretty sure the Tanabe Medalion Touring is quiet enough but still louder than stock. But there are more than enough exhaust threads here. :)
-- Chuck |
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