Noise Limits

JAG · 18 Nov 2005, 18:15 (Ref:1464325)

Just wondering, with the problems at Monza, what the situation is with major UK circuits.

I understand Brands are only allowed 3 or 4 'noisey' weekends a year, but what about Silverstone and Donington.

Could the likes of Oulton Park or Croft run an F1 or LMS race (assuming the facilities where upto standard) or are they limited in the level of noise that will be tolerated, limiting them to quieter BGT/BTCC cars etc.

XJR14/WSC95 · 19 Nov 2005, 08:17 (Ref:1464758)

We have similar problems with race circuits and live music venues being crowded by the ever expanding suburbs, unfortunately here in Australia we have race tracks which were once in the middle of nowhere now finding themselves being surrounded by homes. Why you would knowingly buy or build a home next to a race track then have the nerve to complain about the noise is beyond me.

ascarmarshal · 19 Nov 2005, 10:05 (Ref:1464815)

Quote:

Originally Posted by JAG

Just wondering, with the problems at Monza, what the situation is with major UK circuits.

I understand Brands are only allowed 3 or 4 'noisey' weekends a year, but what about Silverstone and Donington.

Could the likes of Oulton Park or Croft run an F1 or LMS race (assuming the facilities where upto standard) or are they limited in the level of noise that will be tolerated, limiting them to quieter BGT/BTCC cars etc.

Brands is allowed, I think, 27 noisey days on the GP loop ( that means race prepared cars or bikes). There in no limit as far as I am aware on the Indy loop. When you considers that this year on the GP loop we have had Belcar, A1GP, BTCC, HSCC, WSB, BSB, BEMSEE the three or four noisey weekends are obviously exceeded. There has been a race meeting of one sort or other at Brands almost every weekend since March. Most of those are run under normal MSA or ACU noise limits.

**Aysedasi** · 19 Nov 2005, 12:06 (Ref:1464860)

Quote:

Originally Posted by XJR14/WSC95

Why you would knowingly buy or build a home next to a race track then have the nerve to complain about the noise is beyond me.

Trouble is, that's your and my logic. Now't so queer as folk, as they say.......

JAG · 20 Nov 2005, 11:30 (Ref:1465518)

Quote:

Originally Posted by ascarmarshal

Brands is allowed, I think, 27 noisey days on the GP loop ( that means race prepared cars or bikes). There in no limit as far as I am aware on the Indy loop. When you considers that this year on the GP loop we have had Belcar, A1GP, BTCC, HSCC, WSB, BSB, BEMSEE the three or four noisey weekends are obviously exceeded. There has been a race meeting of one sort or other at Brands almost every weekend since March. Most of those are run under normal MSA or ACU noise limits.

I take it there are no limits at Silverstone and Donington, at least during weekends.

I understand some circuits run quieter during the week to keep good relations with the locals.

JAG · 20 Nov 2005, 12:47 (Ref:1465544)

BTW, I've just been reading that LMP1 prototypes have to comply with noise limits of 110db at Le Mans.

I was suprised at this considering around half of the Belcar field at Brands were louder than the 118db limit, before the cars were modified.

Wonder how loud an F1 car is?

TheNewBob · 20 Nov 2005, 16:02 (Ref:1465642)

110db? is that something new!? Seems like quite a small number to me...? I hope noise limits aren't imposed - there's not much I love more than so many cars screaming around a track making such incredible noises, and being able to feel that noise as it vibrates through the floor and the grandstands!

I do remember looking at the Donington website ages ago and seeing their list of testing days - some were noise restricted and some weren't - I guess that'll be keeping good relations?

nobster · 20 Nov 2005, 16:10 (Ref:1465648)

We've got the same problem at Zandvoort in Holland.
Beautiful track but sadly too little days where you can make some noise!!!

ascarmarshal · 20 Nov 2005, 16:34 (Ref:1465677)

The top normal MSA noise limit is 108dBa for single seaters but TOCA, F3, Gt and SCSA (on a oval) are allowed more

JAG · 20 Nov 2005, 17:09 (Ref:1465710)

Quote:

Originally Posted by TheNewBob

110db? is that something new!? Seems like quite a small number to me...? I hope noise limits aren't imposed - there's not much I love more than so many cars screaming around a track making such incredible noises, and being able to feel that noise as it vibrates through the floor and the grandstands!

I do remember looking at the Donington website ages ago and seeing their list of testing days - some were noise restricted and some weren't - I guess that'll be keeping good relations?

LMP1/LMP2/GT1/GT2 have been running to this limit since at least 2002.

At Silverstone last year the TVR GT2's were far louder than any prototype, even the Judd engined cars, only the 550s came close.

The Judds and American V8s 'sound' loud but they don't hurt your ears like the TVRs or 550s.

I believe in the ALMS the cars run at 108db, yet they seem as loud as any sportscar out there.

There are just some engines that have a ceratin resonance (if thats how you would describe it) that allows their sound to carry and appear much louder than the rest, i.e. TVR, 550, Mazda Rotary, 20k rpm F1 V10s!

Rod Birley · 20 Nov 2005, 17:28 (Ref:1465722)

MSV is allowed to use the Brands Hatch GP loop, for racing, 24 days a year. This is a planning law and was agreed some time ago. They have to give at least 60 days notice of intended use, and must inform locally if any catergory exceeds 108 dbs.
The Indy circuit is not subject to the 24 day allowance, and is therefore used far more frequently.

Dan Friel · 20 Nov 2005, 19:50 (Ref:1465831)

I don't believe that the cars at Le Mans run to 110db... far louder than British GT's which run to louder regs (you can hear them form one end of the Mulsanne to the other)..

JAG · 20 Nov 2005, 19:56 (Ref:1465833)

Quote:

Originally Posted by Dan Friel

I don't believe that the cars at Le Mans run to 110db... far louder than British GT's which run to louder regs (you can hear them form one end of the Mulsanne to the other)..

http://www.mulsannescorner.com/ACOLMP2002.pdf

ACO Tech regs 2002 LMP900/LMGTP

'The noise generated by the car cannot exceed 110dB(A) at 3800rpm or at 3/4 maximum revs if less'

Again the LNT TVR was far louder than the protoypes at Silverstone.

Its only 108db for the ALMS!

Dan Friel · 20 Nov 2005, 20:05 (Ref:1465840)

"at 3800rpm or at 3/4 maximum revs if less" is the key.. what does a Judd rev to?

Uk regs will be at 3/4 maximum revs whatever.

JAG · 20 Nov 2005, 20:24 (Ref:1465852)

About 10,000rpm?

They do sound less harsh, and more pleasant than F1 engines, even the older Judd F1's.

**Dani Filth** · 20 Nov 2005, 20:29 (Ref:1465854)

http://www.mulsannescorner.com/juddgv510.html
http://www.mulsannescorner.com/juddgv410.html

about the JUDD engiens .

JAG · 20 Nov 2005, 20:37 (Ref:1465862)

Klass Zwarts F1 cars run Judd V10s, I've read they run at 108db at his circuit resort in Spain.

Dan Friel · 20 Nov 2005, 20:57 (Ref:1465875)

Noise testing at 3800 effectively means that they run unslienced as they run to over 10000.

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