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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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Thu, 14 August 2003 14:22
 
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(quote deleted)
oops..
it's not like i really know what i'm talking about  i just have my theories.....
the extractors are the most important part as they tune the motor. the rest of the exhaust is there to appease neighbours and police. generally, i'd suggest to run the same diameter as the last collector, with 1 or 2 resonators (good noise abatement vs flow if they are designed right) and then the largest chamber muffler you can fit. a reverse flow in a size or two larger than the pipe will give quieter and smoother sound than a straight thru muffler, but will sacrifice a little flow. if your pipe is 2.5" and you have a reverse flow muffler or turbo muffler with 3" guts, then that will still flow well compared to the 2.5" pipe, and be much quieter than a straight thru.
an exhaust is only as good as it's greatest restriction, and really the biggest restriction will be the cat. have ya seen inside one? it's an array of 0.8-1mm suare holes about 10-12cm long, and must be horrible for fast flowing gases to go thru....
if you have to run one, then the larger the cross section, and the smoother the in/out pipes are, the better...
you don't have to spend a fortune on an exhaust system to get it to be quiet and sound ok, but you might want to try a few different ones till you are happy...
Cya, Stewart
[Updated on: Thu, 14 August 2003 14:32]
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| | Subject | Poster | Date |
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N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Thu, 14 August 2003 08:30 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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boudan | Thu, 14 August 2003 09:43 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Thu, 14 August 2003 10:03 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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oldcorollas | Thu, 14 August 2003 10:18 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Thu, 14 August 2003 10:22 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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oldcorollas | Thu, 14 August 2003 10:35 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Thu, 14 August 2003 11:09 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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oldcorollas | Thu, 14 August 2003 14:21 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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oldcorollas | Thu, 14 August 2003 14:22 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Fri, 15 August 2003 01:51 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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oldcorollas | Sun, 17 August 2003 14:21 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Mon, 18 August 2003 02:47 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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oldcorollas | Mon, 18 August 2003 03:38 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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boudan | Thu, 14 August 2003 10:06 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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draven | Thu, 14 August 2003 10:08 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Thu, 14 August 2003 10:14 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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draven | Thu, 14 August 2003 11:39 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Thu, 14 August 2003 11:50 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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draven | Thu, 14 August 2003 12:28 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Thu, 14 August 2003 12:30 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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7M-Brisbane | Fri, 15 August 2003 13:21 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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ed_ma61 | Mon, 18 August 2003 14:22 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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gmsta27 | Mon, 18 August 2003 18:27 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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oldcorollas | Tue, 19 August 2003 02:06 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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BlackSupra | Tue, 19 August 2003 08:34 |
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Re: N/A exhaust diameter and decreasing diameters vs flow.
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ed_ma61 | Tue, 19 August 2003 11:13 |
