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bcrazy
Samba Member
Joined: October 24, 2009
Posts: 231
Location: Oslo
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 Posted: Sun Aug 07, 2022 3:47 am Post subject: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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I have the hot-dog muffler on mye 1600 single port.
Mainly because it it she only cheap "performance" exhaust that exits in the stock peashooter locations.
It seem to be relatively little work to extend the primaries from cylinder 2&4 and cross them over to connect to the muffler on opposite sides, making them much closer in length to 1&3.
Similar to what they do on the CSP customsport
https://www.ahnendorp.com/Beetle-typ-1-engineparts...anguage=en
Would this make any noticeable difference to how the exhaust performs? |
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Dauz
Samba Member
Joined: January 05, 2010
Posts: 1790
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| Posted: Sun Aug 07, 2022 9:22 am Post subject: Re: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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| Curious as to what your expectations are in taking this on |
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bcrazy
Samba Member
Joined: October 24, 2009
Posts: 231
Location: Oslo
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| Posted: Sun Aug 07, 2022 10:48 am Post subject: Re: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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| Dauz wrote: |
| Curious as to what your expectations are in taking this on |
Just to make all primaries the same length
So if I do it must be worth the work, ie make the engine perform notably better, maybe exhaust sound also smoother |
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mcmscott
Samba Member
Joined: March 12, 2010
Posts: 4856
Location: sanger ca
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| Posted: Sun Aug 07, 2022 11:08 am Post subject: Re: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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| bcrazy wrote: |
| Dauz wrote: |
| Curious as to what your expectations are in taking this on |
Just to make all primaries the same length
So if I do it must be worth the work, ie make the engine perform notably better, maybe exhaust sound also smoother |
Without a merged collector it won't make a difference. Those hot dog mufflers are garbage for any thing performance oriented, they just sound like a great big fart
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madmike
Samba Member
Joined: July 11, 2005
Posts: 5292
Location: Atlanta,Michigan
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| Posted: Sun Aug 07, 2022 12:59 pm Post subject: Re: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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X2 with mcmscott on this,my same thoughts
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"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works" |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26785
Location: Colorado Springs
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| Posted: Sun Aug 07, 2022 3:33 pm Post subject: Re: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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| Primary length is not the only problem the hotdog. |
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NJ John
Samba Member
Joined: September 21, 2007
Posts: 2222
Location: HdG, MD & NJ
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| Posted: Sun Aug 07, 2022 4:42 pm Post subject: Re: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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Cut the muffler in half and check out what’s going on inside. I opened an empi, monza type system and left and right exhaust connected to the same pipe. So, the pulses were dead heading right into one another, forced to exit through a bunch of holes drilled in the center. Anything is better than that concept, but nothing is ever as good as 4 into 1. A partition maybe needed.
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sled
Samba Member
Joined: February 16, 2005
Posts: 6179
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| Posted: Sun Aug 07, 2022 6:50 pm Post subject: Re: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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a proper equal length merged system will do almost nothing on a 1600 single port, as the induction is extremely limited as well. Leave the exhaust alone and enjoy it.
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Dauz
Samba Member
Joined: January 05, 2010
Posts: 1790
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| Posted: Mon Aug 08, 2022 10:50 pm Post subject: Re: Modifying tri-mil hot dog exhaus to have equal length primaries? |
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| sled wrote: |
| a proper equal length merged system will do almost nothing on a 1600 single port, as the induction is extremely limited as well. Leave the exhaust alone and enjoy it. |
Exactly my thoughts. Hence my question.. |
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