Date:         Thu, 3 Apr 2008 19:28:22 -0700
Reply-To:     David Marshall <mailinglist@FASTFORWARD.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Marshall <mailinglist@FASTFORWARD.CA>
Subject:      Re: Neils' Downpipe/"Y" pics + exhaust flex bushing and pipe
              reducer              questions
Comments: To: neil N <musomuso@GMAIL.COM>
In-Reply-To:  <c4e7c5f90804031836h761516ffw3ceb7b35d3420f98@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Neil,
Are you going to add any bracing for that exhaust system?
You really want to design that so there is NO flex in the system and the
exhaust moves with the engine.  Envision a ruler off the edge of a
table - vibrates quite well - if you put it between two tables it is rock
solid.  If there is any vibration in the exhaust you will hear it,
feel it and eventually break it.

David Marshall

http://www.hasenwerk.ca
Box 4153, Quesnel BC, Canada V2J 3J2

Engine Conversion FAQ - http://www.hasenwerk.ca/faq

On
Thu, April 3, 2008 18:36, neil N wrote:
> Hi all.
>
> Thought some might get a kick out of seeing the massively ugly
> concoction I came up with. Yes those are some truly horrible
welds,
> and yes it's over welded, but it's a long story. Believe
it or not, I
> spent many hours on that thing! And no, I'm not
making a new one! (for
> now anyway --- :^)
>
>
Questions:
>
> The flex bushing shown on same page, looks
like a butt weld type. I
> bought it knowing it would be, but
looking at it in hand, it just
> seems like a slip fit would be
stronger. Is there such a thing?
>
> When looking at
Dynomax.com catalogue of pipes, the terminology of
> ID/ID or
ID/OD reducers has me confused.  I want to reduce the 2-1/4"
> OD pipe to stock Vanagon pipe (1-3/4" ? OD) as I'm using a
stock
> Vanagon muffler.
>
> Partial exhaust and
flex bushing pics:
>
>
http://tubaneil.googlepages.com/exhaustdownpipey
>
>
Enjoy your laugh! --- :^)
>
> Thanks,
>
> Neil.
>
>
>
> --
> Neil
Nicholson. 1981 Air Cooled Westfalia - "Jaco"
>
> http://web.mac.com/tubaneil
>
http://tubaneil.googlepages.com/
>