davidinhull
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| posted on 12/1/09 at 05:38 PM |
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hoping for a simple solution (exhaust related)
Hi
Short of putting a whole new exhaust system on my car how do I make my car quiter?
I want to take my car on track days at elvington with a 98db noise limit, and I currently produce 105db
any suggestions would be welcome
thanks
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BenB
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| posted on 12/1/09 at 05:42 PM |
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You can use something like this
DB killer
Not guaranteed to reduce it enough. 105db to 98dB is a big leap....
How about a bolt on secondary can?
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bob tatt
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| posted on 12/1/09 at 05:44 PM |
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what engine are you running, i used a can from mnr and it reduced mine from 108 to 93 not bad value either
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bob tatt
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| posted on 12/1/09 at 05:46 PM |
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i tried the db killer and all it did was restrict the engine to the point where it would not rev
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davidinhull
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| posted on 12/1/09 at 05:47 PM |
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1.6l fiat muira engine with riat race can
friend has a vortex with an R1 engine with MNR's can and he's too loud for elvington as well!
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bob tatt
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| posted on 12/1/09 at 05:55 PM |
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which can does he have i had the really big one on no problems does it need repacking perhaps ?
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tul214
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| posted on 12/1/09 at 06:44 PM |
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David,
Simple answer is to fit a bigger can.
Some people have had success with an R1 can.
...or could you put this in line?
http://cgi.ebay.co.uk/Yamaha-R1-yzf-can-STUBBY-EXHAUST-Carbon-r1-gsxr-cbr_W0QQitemZ320330096996QQcmdZViewItemQQptZUK_Motorcycle_Parts?hash=item32
0330096996&_trksid=p3286.c0.m14&_trkparms=72%3A1299%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318
Mark
[Edited on 12/1/09 by tul214]
1.6 Raw Super6 sold
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jacko
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| posted on 12/1/09 at 07:09 PM |
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How about two r1 cans ? fit a [ y ] after the manifold then two cans one over the other
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DanP
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| posted on 12/1/09 at 07:13 PM |
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Slightly OT but is dBA like dBV and dBW where a 6/3dB resp. increase means a double in voltage/power?
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MikeRJ
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| posted on 12/1/09 at 07:24 PM |
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quote:
Originally posted by DanP
Slightly OT but is dBA like dBV and dBW where a 6/3dB resp. increase means a double in voltage/power?
Yes, a 3dB increase doubles the sound power, but it requires approximately a 10dB increase to give a doubling of perceived volume
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hobzy
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| posted on 12/1/09 at 08:47 PM |
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quote:
Originally posted by jacko
How about two r1 cans ? fit a [ y ] after the manifold then two cans one over the other
I asked about this ages ago mid thread and never got a real answer  Still got 2 R1 titanium cans sat in the garage waiting for a yeh or neh...
anyone?
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davidinhull
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| posted on 13/1/09 at 09:22 AM |
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quote:
Originally posted by hobzy
quote:
Originally posted by jacko
How about two r1 cans ? fit a [ y ] after the manifold then two cans one over the other
I asked about this ages ago mid thread and never got a real answer Still got 2 R1 titanium cans sat in the garage waiting for a yeh or neh...
anyone?
Can I suggest you go ahead, then let me know the answer!! (or let me have the cans at a ridiculously low price and I'll give it a go)
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Stantman
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| posted on 13/1/09 at 01:34 PM |
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Had 1600 CVH running at 105db and couldn't get on at Castle Coombe.
Side exit with Webbers (additional induction noise with webbers).
Largest Can possible is the answer.
Bought a silencer from Wunoff manufactured to match my current manifold pipe, reduced noise to 96db.
Speak to Wunoff and they may be able to give you some advice. He was dead right about mine.
Cheers
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hobzy
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| posted on 13/1/09 at 07:17 PM |
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quote:
Originally posted by davidinhull
quote:
Originally posted by hobzy
quote:
Originally posted by jacko
How about two r1 cans ? fit a [ y ] after the manifold then two cans one over the other
I asked about this ages ago mid thread and never got a real answer Still got 2 R1 titanium cans sat in the garage waiting for a yeh or neh...
anyone?
Can I suggest you go ahead, then let me know the answer!! (or let me have the cans at a ridiculously low price and I'll give it a go)
£80 plus postage and there yours (for both). as I don't have the tools to make a go of it. My only other though was to put them in line
somehow...
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