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Infineon noise limit?


bora450

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I found the original post to CornerCarvers:

 

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CMC#502-06-04, 08:35 PM

I got an email from Nasa today telling, among other things, that there will be a sound limit of 103dB measured 50' from the track at turn 12 (the kink in the main straight).

 

Have they done this before? Is 103dB easy to hit? I consider my car pretty quiet compared to some other cars, but should I be worried? Its a bone stock LT-1 with open pipes.

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I found the original post to CornerCarvers:

 

----------------------------------------------------

CMC#502-06-04, 08:35 PM

I got an email from Nasa today telling, among other things, that there will be a sound limit of 103dB measured 50' from the track at turn 12 (the kink in the main straight).

 

Have they done this before? Is 103dB easy to hit? I consider my car pretty quiet compared to some other cars, but should I be worried? Its a bone stock LT-1 with open pipes.

 

I agree Claus. We might have some cars that might be over that.

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103 dB is a pretty common sound limit, and quite a few tracks have lower limits. At either Roebling Roads or Road Atlanta (maybe both) the limit is 93 dB. Staying under 103 dB shouldn't be a problem, even for ground pounders (big V8s). Heck, they run a Bennetton B191 at the Walter Mitty Historics at Road Atlanta.

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Hi Claus,

 

I will ask Jerry about the official limit at Infineon. However, we plenty of loud V8 ASC cars that seem to be just fine. Are you asking for a friend? I don't remeber your Porsche being all that loud........... but pretty damn fast.

 

Laguna, on the other hand, is VERY strict up here. (less than 93db)

 

Regards,

 

John

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Hey Claus,

 

I ran my Audi (sorta loud) at a weeday club event at Sears and they didn't have a problem. I think they are much more lenient on the weekends with larger, sanctioned groups. Besides, there are some pretty loud USTCC cars that will be running that weekend.

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"It's a strictly enforced 103 dBA measured 50' from the line. The mic is

located driver's right at the apex of T12."

 

This is the official word.

 

John

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Hi Claus,

 

Are you asking for a friend? I don't remeber your Porsche being all that loud... John

 

I run a main muffler and a wastegate muffler at Laguna Seca but don't know what my dB level is without them. The turbocharger does muffler quite a bit. I will bring the mufflers just in case and drive open exhaust.

 

Thanks,

Claus

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