Comments on installation of S4tt DSY transmission into UrS4/S6
From: Elijahallen92@aol.com
Subject: [s-cars] DSY 6 speed trans install
Date: Tue, 17 Dec 2002 20:46:50 EST
Hi all,
I finally got all the little things out of the way while I had the tranny
out and started the install of my new DSY trans today. Well, I was told this
would be a bolt in procedure but its not.
The cooler lines were not a big
deal, I just bought the stuff from Aeroquip and it worked fine but the bell
housing on the DSY is very different and I had to take a saw-zawl to it to let
it fit around the RPM sensor (I think that is what it was)
on the back of the AAN 5 cylinder engine. There are also
two dowels that align the trans to the block and one of them does not fit and
there is no way to make it work because the hole that the bolt goes through
and the widened area for the dowel are offset from each other, also the bell
housing on the DSY is too thin to drill the hole even if you could get the
right offset. Only four of the bolts from the old trans fit, so I have to
find different sizes to bolt it up. Also one of the bolts is larger than the
original and to make it work I have to drill a larger hole in the block.
Elijah
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Elijah mentions cooler lines. The DSY transmission has a built in oil
pump, to pump gearbox oil through an external cooler. You can either
rig up a direct connection between the oil pump output and the return
fitting as Elijah has done, or you can mount and plumb an external oil
cooler up front where it will do some good.
Something not mentioned in Elijah's email, the DSY center section does
not have the mounting bosses in the casting that are needed for the
ProConTen guide bracket. This means that you will have to do without
the ProConTen seat belt tightening feature.
Here's a picture of the ProConTen bracket,
and if you click on the center section
description at the bottom, you will see 211 C center sections without
the boss and a 211 B center section with the mounting boss.
As you can figure from his next email, he has installed a lightweight
flywheel and centerforce clutch at the same time as he installed the
DSY 6 speed transmission.
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From: Elijahallen92@aol.com
Subject: Re: [s-cars] DSY Trans Code
Date: Wed, 18 Dec 2002 20:48:41 EST
S-heads,
I spent the day working out the kinks with the new DSY tranny and finally
finished the job. Everything seems to be working and feels tight. The
lightweight flywheel lets the engine rev faster and catch up quicker on
downshifts and the centerforce clutch grabs very nice. It is all actually
much more smooth and quiet than I expected. As far as faster, maybe a little
in first and second due to the flywheel but not much. Fourth and fifth now
have more pull all the way through the revs. Sixth gear I was told was the
same as the old fifth but it is not, the rpms are about 400rpm lower at 70mph
than they were with the old trans. All in all I am very happy with the new
setup and can't wait to get it on the track for some real testing.
For those
of you waiting on DSY trannys or thinking of buying one there are a few
things that you will have to do to make it fit.
First get out the saw-zawl and
cut a notch in the bell housing to fit around the RPM sensor. You will also
have to pull the alignment peg/dowel from the drivers side of the block. I
talked to Dave Jones who has installed a few of these and he says he just
uses the one dowel so that's what I did and it seems to be fine.
You will
have to cut a couple of the bolts heads on one side to let them sit right on
the bell housing and some of the bolts are different lengths for the DSY.
Other than that the tranny seems to fit and work very well. I will post more
as I drive it and get a better feel for it.
Elijah
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