Tips For Quietening Exhaust Down (Re. Track Days)
#1
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Tips For Quietening Exhaust Down (Re. Track Days)
The last time my car was tested it was 105db static, but this was before de-cat down pipe was fitted.
Car is a 94 Type RA running a full HKS 3" system. Is there a quick and easy way to reduce noise to comply with limits imposed at certain tracks?
Cheers
T
Car is a 94 Type RA running a full HKS 3" system. Is there a quick and easy way to reduce noise to comply with limits imposed at certain tracks?
Cheers
T
#3
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T
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Merlin motorsports sell universal silencers that attach to the exhaust tip for this very job. I have one thats surpluss to requirements and has never been used (my old Westfield was borderline and it squeezed through the scrutineers so I never used it)
I bought it for a 3" exhaust so it might fit, if you want to go this route PM me
I bought it for a 3" exhaust so it might fit, if you want to go this route PM me
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http://www.scoobyworld.co.uk/catalog...oducts_id=1294
There's a bung available on here, scroll down slightly.
There's a bung available on here, scroll down slightly.
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Drill a couple of holes near the end of the tail pipe and fit a 1/2" bar across the tail pipe. Will quieten it down quite a bit. Did this on a mate's car and SPL dropped from 102 to 99 dBA.
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#8
Exhaust
What someone suggested to me was to change th back box for one which is made of a material that is less likely to resonatate as much i.e titinium back box.
Would this make a difference for noise level testing at track days ...?
Would this make a difference for noise level testing at track days ...?
#9
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Thanks for the replies
Just looking for a quick fix to dampen the noise if I get pulled up - Not happened so far, but it will if I go to Donnington
The Scoobyworld baffle could be the way to go as I am sure pipe is about 4.5"
Cheers
T
Just looking for a quick fix to dampen the noise if I get pulled up - Not happened so far, but it will if I go to Donnington
The Scoobyworld baffle could be the way to go as I am sure pipe is about 4.5"
Cheers
T
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