Barber Motorsports Park dB level
05-02-2007, 11:09 PM
#1
Cruisin'
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Barber Motorsports Park dB level
Barber Motorsports Park outside of Birmingham AL says they have a sound level limit of 104dB.
How loud are headers and megaphones?
I also have a Monty 2 in 2 out sport muffler, just in case.
Does anyone have any experience with what is legal and what is not?
Gregg
Signal Yellow 1970 911S
How loud are headers and megaphones?
I also have a Monty 2 in 2 out sport muffler, just in case.
Does anyone have any experience with what is legal and what is not?
Gregg
Signal Yellow 1970 911S
05-03-2007, 09:21 PM
#2
Race Car
I know a 2.5 liter 944 with straight open exhaust and side exit passed for the PCA race at Barbers a couple of months ago. We tested it at 50ft. @ 101dB prior to heading there and this specific car ranks right up there with the loudest I've heard at every track it's been to.
Some 911's I've seen used at 90 at exit pointing towards the ground for suppression.
T
Some 911's I've seen used at 90 at exit pointing towards the ground for suppression.
T
05-03-2007, 11:15 PM
#3
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Originally Posted by 951and944S
I know a 2.5 liter 944 with straight open exhaust and side exit passed for the PCA race at Barbers a couple of months ago. We tested it at 50ft. @ 101dB prior to heading there and this specific car ranks right up there with the loudest I've heard at every track it's been to.
Some 911's I've seen used at 90 at exit pointing towards the ground for suppression.
T
Some 911's I've seen used at 90 at exit pointing towards the ground for suppression.
T
sounded to be 151 db 
05-04-2007, 03:02 PM
#5
Three Wheelin'
Headers and megaphones will fail miserably, put the muffler on for sure.
As a side note, at the CR a couple of years ago someone got creative, not going to say who...and came up with this sound deflecting device...
As a side note, at the CR a couple of years ago someone got creative, not going to say who...and came up with this sound deflecting device...
911, barber, db, decibel, exhaust, level, limit, megaphones, motorsport, motorsports, noise, paragon, park, parks, products, restriction, restrictions, sound
