Date:         Thu, 8 Oct 1998 21:43:39 -0700
Reply-To:     garth woolstenhulme <gwoolstenhulme@TRUELINK.NET>
Sender:       Vanagon Mailing List <Vanagon@vanagon.com>
From:         garth woolstenhulme <gwoolstenhulme@TRUELINK.NET>
Subject:      Re: Using gas inline 4 manifold
Comments: To: David Marshall <vanagon@VOLKSWAGEN.ORG>
Comments: cc: Vanagon@VANAGON.COM
Content-Type: text/plain; charset=us-ascii

Hi All,

Another problem with the single outlet I4 exhaust manifold (as with all
rabbit/golf exhaust manifolds) is that it dumps down between the 2nd and 3rd
cylinders--right where the left side motor mount is located.  The audi/fox
manifolds angle backwards (forwards in a Vanagon) as they drop down missing the
motor mount.  After I saw Helmut's photos of SA's exhaust system I would have
done mine the same--use an audi/fox twin downpipe (along with the audi/fox
exhaust manifold) and cut the pipe after the 2 tubes merge into a single pipe.
Then use a 180 degree mandrel bend to point the single exhaust pipe back to the
rear of the van.  This is the simplest and probably the best exhaust I have seen
for the diesel to gas conversions and the least amount of fabrication.

Garth





David Marshall wrote:

> I used an Audi Fox dual outlet manifold and down pipe for the perfect fit.
> The VW Fox is almost the same thing.  There is a special tool for removing
> the "C" clips.  Just a note, that this 4 > 1 manifolds are the worse
> flowing of all the I4 designs that VW made.  You can use a series of wedges
> to remove it but I would stongly suggest getting a dual outlet manilf with
> theh 12mm copper nuts.