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25-03-11, 11:47 AM
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#1 |
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Guest
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Exhausts allowed at track days?
What is the rule with aftermarket exhausts at trackdays? Is there a DB limit to adhere to? I've just got a scorpion street extreme, I'm assuming that will be ok at least with the baffle in to meet noise regulations?
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25-03-11, 01:34 PM
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#2 |
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Re: Exhausts allowed at track days?
Depends on the track and the date as they have quiet days as well as noisey days.
Its runs from 98db (quiet day Donnington to 105db Anglesea). Typically its 102 - 103db. Its tested at 5500 revs on an SV650. Last edited by hardhat_harry; 25-03-11 at 01:37 PM. |
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25-03-11, 02:25 PM
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#3 |
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Member
Mega Poster
Join Date: Mar 2007
Location: Yorkshire
Posts: 4,790
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Re: Exhausts allowed at track days?
sv with a baffled road legal can should have been ok I would have thought. Inline 4's with track only exhausts are on the border line
can't remember exact numbers but my gsxr had a yoshi rs3 race can on it & even with the engine running hot as fook (108 on the temp display) it still registerred 105.8 at cadwell last year = the limit was 105 but the lady in the holding area was kind enough to let me through
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RIP Reeder 20/07/1988 - 21/03/2012 - You were awesome Cbf600, sv650, sv1000, gsxr 750 srad, KTM adventure 950, gsxr 750 k1, gsxr 750 srad, fazer 1000, zx9r ninja.. |
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25-03-11, 02:29 PM
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#4 |
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Re: Exhausts allowed at track days?
My SV has a M4 Full System and was tested at 103db 5,500rpm, the limit being 105db for our event at Cadwell Park.
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25-03-11, 04:22 PM
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#5 |
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Re: Exhausts allowed at track days?
My SV with full titanium Akra was 100db at 5k
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26-03-11, 05:39 PM
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#6 |
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Member
Join Date: Jul 2009
Location: Guildford, surrey
Posts: 785
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Re: Exhausts allowed at track days?
You should b fine at most places because normally they only want you to rev it to around half, but if you ever go castle combe they are a lot stricter and make you rev it to 3/4 which is really stupid
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Was SV650S K9 Now GSXR 600 K9 |
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26-03-11, 06:52 PM
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#7 |
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Super Moderator
Mega Poster
Join Date: Dec 2003
Location: Somerset
Posts: 3,614
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Re: Exhausts allowed at track days?
They are a lot stricter at Castle Combe, because some NIMBY residents who moved their long after the circuit was opened, started complaining about the noise. The circuit is under constant threat of being shut down.
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Look Dave, I can see you're really upset about this. I honestly think you ought to sit down calmly, take a stress pill, and think things over. K5 GSXR 750 Anniversary Edition |
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