--- frank krajewski <frankk@intap.net> wrote:
> David: Does the conversion to SUs require changing
> both manifolds and the
> exhaust system? In Rhode Island we are required to
> maintan a catalytic
> converter if the car was originally equipped with
> one. This poses problems in
> converting to SUs I believe. Maybe other listers
> have confronted and solved
> this problem.
> Frank
>
> David Councill wrote:
>
> > I wish there was a good reference manual. The lack
> of said manual is
> > perhaps one of the biggest drawbacks to the Zenith
> Stromberg carbs. The
> > Haynes manual is no longer in print - it has been
> consolidated into a
> > general carb manual covering Webers, SUs, and
> Strombergs.
> >
> > The hot water choke itself comes in several
> varieties with minimal
> > documentation on the inner workings. There is also
> a manual version of the
> > Stromberg 175CD - it is slightly different however
> from my experience.
> > Throttle shafts are different diameters, linkage
> is different. My
> > experience, however, is with the dual 175 CD carbs
> as used on the TR7.
> >
> > Personally, I would convert to SUs which is what I
> am doing on the TR7. I
> > can't get the idle under control and documentation
> is poor on the
> > Strombergs. SUs are more basic and easier to work
> with. Between temperature
> > compensators, bypass diaphragms, auto choke
> devices - its too much trouble
> > to work with without sufficient descriptive
> manuals.
> >
> > David
> >
> > At 10:17 PM 1/9/01 -0500, frank krajewski wrote:
> > >The carb on my 1980 MGB LE is a Stromberg 175
> with the dreaded hot water
> > >choke. Is this a different model from a Stromberg
> 175 CD? I am
> > >contemplating buying a good used one as opposed
> to rebuilding mine and
> > >keep running into the different model numbers. Is
> there a good reference
> > >manual available that spells out the various
> Zenith Stromberg
> > >applications?
> > >Frank "Swamp Yankee" Krajewski
hello,
i have seen a zenith-stromburg--cat-on-exhaust
manifold setup used for the twin su conversion..the
owner(me), lived in colorado(a smog testing state) so
i needed the cat in place for the test..I cut the z-s
carb manifold off of the cat-exhaust manifold..what
was left was a cat-exhaust manifold(for smog test
station..and a perfectly good place to mount my twin
su setup..i did have to space the su manifold a
little, as the flanges on the cat-manifold and su
manifold were different thicknesses ..
yours, Howard.
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