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Discussion Starter · #1 ·
Providing I survive Cadwell later this month (first trackday!), I'm also hoping to do a trackday at Goodwood in the summer. But I'm told they have a noise limit of 98db and some cars are marginal at passing which surprised me e.g. Elise/AudiTT (Exige doesnt pass). I'd be grateful for some views on the likely db level for my car - Evo 5/HKS SuperDrager/DeCat pipe/HKS induction/Powerflow filter. I seem to remember there was some discussion on this topic previously, but it looks like its been lost.

Thanks for your help.

Darryl.
 
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Discussion Starter · #2 ·
Check out the http://www.easytrack.co.uk site, if i rememeber rightly they sell or hire something so you can self test.
 
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Discussion Starter · #3 ·
My Evo 6 has a HKS SuperDrager, DeCat pipe, Blitz induction kit (until recently had the HKS one, which was quieter) and also the HKS SQV dump valve.
Noise limits vary depending on db level and at what rev speed.

Goodwood was 96db at 5000 rpm, which registered 90db. At Castle Coombe I registered 86db at 4500rpm!! I did get pulled over at Combe because they said I was averaging 96db (higher than anyone else) but it was induction noise. I doubt it was me, but I was playing with an STI scooby which made similar noises, so between us, we were noisy!

Your car may be noiser depending on how new the HKS exhaust is. They have fibre matting inside which can break up and get noisier over time. A 5 at Goodwood was noiser than mine, but well below the 96db limit.

Hope this helps.
 
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Discussion Starter · #4 ·
Thanks TypeR and amp; Blade.

Have checked out Easytrack and it looks like I might be able to get the car tested if I just turn up at a Goodwood track day and ask very nicely. I'm working on the assumption that if you've paid for the day and dont pass then its money down the pan (but maybe I'm wrong on this). Your car sounds reasonably close to mine on mods Blade so your figures give me hope. The Easytrack forum had some useful tips that help you keep the noise level down, principally get the car well warmed up before testing and build up gradually to the required rev level. Other ideas involved a coke can but I wasnt sure what to do with that.
I presume there'll be some noise checks at Cadwell next week which would be handy as I'm booked in - maybe I should have read the stuff Darin sent!

Darryl.
 
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Discussion Starter · #5 ·
I am going to Cadwell and have quite a loud induction and Exhaust note from my Civic Type R. I havent had any problems so far !!!!!!!

Matt
 
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