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Offline Mick Oliver

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Castle Coombe noise limits
« on: January 07, 2019, 01:35:31 PM »
I found this on the web site for Castle Coombe and it shows that the RR will not pass with a short exhaust and I am not sure if it applies to the R as well but it is the same system for the exhaust.
Interesting from there comments but say Standard may be OK



In our experience the following machines may NOT pass our strict limits:

Any make & model of bike with short type side silencers
BMW S1000 RR
Ducati 748/749/916/996/998/999, fitted with Termignoni open pipes
(but any of the above with standard pipes SHOULD pass)
Ducati 1098R
Ducati 1198
Ducati Multistrada (2011 + 2013)
Ducati Panigale - all models
Honda CBR1000RR: 2008-2015
Kawasaki ZX10 - 2009 and 2010 model
KTM RC8
Suzuki GSXR600 K6
Suzuki GSXR600 K7
Suzuki GSXR 750 K6
Suzuki GSXR 750 K7
Suzuki GSXR1000 K6 - 2006 model with standard exhaust
Suzuki GSXR1000 K7
Suzuki GSXR1000 K8
Triumph 675 - 2009 model (short type side can)
Yamaha R6 2006-current
Yamaha R6 - 2009 model (short type side can)
Yamaha R1 2008-current

Offline S1000R

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Re: Castle Coombe noise limits
« Reply #1 on: January 07, 2019, 02:54:55 PM »
Went there a while back with my CBR1000RR (which is on that list). From the look on the noise testers face and his body language I suspect that it was actually over the limit but he just waived me an "ok" and a nod. Don't think I was the only one who just scraped through though. If they didn't give some leeway I think half the group would have gone home which wouldn't have been good for the organisers.

Offline Alan

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Re: Castle Coombe noise limits
« Reply #2 on: January 07, 2019, 04:47:20 PM »
I ran my 2010 ZX10R there many times which is on the list.  Always passed with the standard exhaust at 103db.  As I am only 12 miles from the circuit I will be riding up there once it warms up in spring to get the S1000R noise tested, but I suspect it will be OK.  The RR will be noisier than the R as it is measured at 3/4s throttle, so as the RRs red line is higher so will the revs at which it is noise tested.

Offline zombie

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Re: Castle Coombe noise limits
« Reply #3 on: January 07, 2019, 11:49:14 PM »
Kind of ridiculous that just about every sport or superbike made from the mid 2000's onward won't pass their testing with stock exhaust.

Offline Alan

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Re: Castle Coombe noise limits
« Reply #4 on: January 08, 2019, 12:08:01 AM »
Blame the new residents in the village.  They bought houses close to a racing circuit that has been there for decades and then complained to the local council about the noise.  The result is one of the strictest noise tests in the country.  Less than 105db at 3/4s maximum revs.  With 13,000 + rpm being common on sports bikes that means being tested at 10,000rpm.  At those revs, the mechanical engine noise and induction roar adds significantly to the noise levels which means anything other than a good standard exhaust will fail the test.  Most bikes with a standard exhaust will pass, but anyone with an aftermarket exhaust or a de-catted exhaust is going to be disappointed.  It is my local circuit so it is the one I use most as I can ride there in about 20 minutes, but it is predominantly a right hand circuit so it will destroy a tyre on the right shoulder very quickly.  It is quite a fast circuit with 150mph+ achievable on the main straight (which actually has quite a kink in it at those speeds )

Offline Fossil

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Re: Castle Coombe noise limits
« Reply #5 on: August 08, 2019, 08:31:03 AM »
Hi,  I went to Castle Coombe yesterday to get a noise test done on my S1R sport. It did scrape through at 104.8! I saw another guy with one who was on track and he advised me to always do the noise test in Rain Mode as it's quieter! His was 102!  I'm booked in for Sept. as August is full due to the 2 day race meeting at the end of the month.  HTH anyone wanting to go there.

Offline Alan

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Re: Castle Coombe noise limits
« Reply #6 on: August 08, 2019, 10:26:00 AM »
Good to know and a good tip on noise testing in rain mode.  Which session in September are you booked on?

Forget that, just looked and only one in September so I assume you are going on the 18th
« Last Edit: August 08, 2019, 10:27:16 AM by Alan »

Offline Fossil

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Re: Castle Coombe noise limits
« Reply #7 on: August 08, 2019, 10:36:31 AM »
Hi Alan, yes thats the one! Itll be my first T day in 20 yrs! Really looking forward to it now. Another tip from the guy I met was, after noise test, put it in dynamic mode and short shift when the front goes light!  Are you going?

Offline Alan

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Re: Castle Coombe noise limits
« Reply #8 on: August 08, 2019, 11:13:15 AM »
I am wanting to try it on track so was looking at September.  I have done a few track days at Castle Coombe on my last bike so wanted to compare.  Never had a bike with traction control/ABS. etc., so I am interested to see the difference.  I am not that quick, I was always more of a drag racer than a track racer, but it is good fun.  Be prepared to need a new tyre afterwards, it is mainly a right hand circuit so it destroys the right shoulder on the rear tyre.  I think my best lap there was 1m26s, so a long way off the pace but it still a lot of fun

Here are a couple of laps from a few years ago
t=
t=

Offline Fossil

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Re: Castle Coombe noise limits
« Reply #9 on: August 08, 2019, 02:01:54 PM »
WOW! 145 on the straight-ish after the start! Not sure I'll be able to manage that with a naked!  You look plenty quick enough to me too all the way round!  I need a new rear tyre soon anyway so maybe better get two while I'm at it :005:  Do you alter tyre pressures at all there as I noticed the sessions were only about 10mins, would they get too hot in that time? Especially with a newby like me. Maybe see you there?

 


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