Tris
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| posted on 13/8/11 at 06:23 PM |
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Recomendations for new noise friendly exhaust can ?
Hi all,
Ive got a ZX12 powered Spire GTR, and so far ive been running it mainly with the stock bike can which i got off ebay. Passed IVA fine, although it
failed dismally yesterday at castle combe, registering 106db at 9,000 rpm !!!
Ive got another track day booked week thursday, so i am in the market for a nice (and big!) acousta-fil filled can that can bring the noise down.
Does anyone have any recommendations for where i can get one custom made ?. Already tried Paul Gooderham but he's too busy, going to also try
andy bates on monday.
Cheers
Tris
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mark chandler
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| posted on 13/8/11 at 06:35 PM |
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factory one then it will be quiet.
My BEC failed due to engine/induction noise  you may be better off concentrating in this area.
Noise does not like bends either, so if you can turn it a few times this will also help.
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Tris
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| posted on 13/8/11 at 06:37 PM |
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Yes, its the can. Its a straight baffled design, with no noise wadding at all.
Regards induction, ive done some work in this area already so there's little extra i could do.
Here's a few pic's showing how it currently is with lots of bends 
http://web.me.com/tkipling/GT-R/The_Build/Entries/2011/3/16_Exhaust_Take_2.html
Cheers
Tris
[Edited on 13/8/11 by Tris]
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mark chandler
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| posted on 13/8/11 at 06:50 PM |
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Sounds like a horrible DB killer required then or a supertrap thing
I got a load of 3" tube off 3' Universal Removable Exhaust Db Killer Baffle | eBay on ebay, turned up very quickly and
excellent quality
Regards Mark
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Tris
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| posted on 13/8/11 at 07:00 PM |
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You know, that was the strange thing - i had already thought of that and had brought with me 2 different types of DB killers, both brought from ebay.
One was almost the same as in your link, the other was a shorter example.
Amazing thing was that they both increased the noise level !!!. God knows why but it looks like a bigger and proper wadded can is the best way at the
mo.
Cheers
Tris
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mark chandler
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| posted on 13/8/11 at 08:24 PM |
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Maybe they just changed the tone
In that case all I can suggest is a third can strapped across the back maybe, or if its out the middle a Y piece with 2 small cans perhaps. For my
car I,m in the process of taking the exhaust out the rear to get it as remote from the engine as possible...
I purchased a cheap db meter off ebay, its surprising accurate so I suggest you get something similar before commiting, my planned day at Goodwood
ended up going around in the tow car as my BEC was banned I feel your pain, things are bound to get more stringent as well I recon.
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