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TC Supercharger Carburetor help
Posted: Sun Jun 19, 2005 8:43 pm
by Terry Horlick
I am currently working on fitting up an Italmechanica Roots style
supercharger to my TC (TC 2285). Tonight I did a trial fit-up and
ran into a snag. The carburetor I selected doesn't fit under the
bonnet!
I have posted three photos: first is one with the stock set-up
1.25" carbys at
http://pages.sbcglobal.net/thorlick/images/sc1.jpg
second is the fit up of the supercharger at
http://pages.sbcglobal.net/thorlick/images/sc2.jpg
third is another view at
http://pages.sbcglobal.net/thorlick/images/sc1.jpg
The problem is that these SU carbies from a Datsun 240Z are 2" too
tall for the installation. This leaves me with three options.
First, I could get a different carby. Second, I can cast a new
intake manifold to run from the carby to the supercharger to move
the carby lower. Or third, I can sell the unit to someone who also
wants it and has a better solution.
Casting a manifold is a large bother because I would not only have
to make a pattern for the manifold, but also make up a core. The
advantage is that I can use any carby I want then.
Switching to another carby will mean not using an SU which changes
the ambience of the engine compartment (so what?).
So what I need to hear is ideas on what carburetors will fit in that
space, work off the TC controls and run the car well. Does anyone
out there have experience with this?
Thanks, Terry TC2285
Re: TC Supercharger Carburetor help
Posted: Sun Jun 19, 2005 8:46 pm
by Terry Horlick
Re: TC Supercharger Carburetor help
Posted: Sun Jun 19, 2005 8:56 pm
by Terry Horlick
One more question I forgot to ask. This unit comes with a spot to
plumb in oil pulled off the pressurized oil lines on the engine.
The unit has been retrofitted with 5 sealed ball bearing assemblies
in place of the original open ball bearings.
The oil line will fill the front and bathe the gears, but the front
also has a fill plug so this can be done manually. The rear
bearings used to have caps over them with grease fittings.
Are modern sealed bearings really ok to run with no lubrication? I
am thinking of placing a plug over each rear bearing and not running
pressurized oil to the front end. If I do run the pressurized oil
line to the front won't I have to run another line out of the front
to the sump (the Supercharger is already set up with an oil fitting
for oil return about midway up the gear case).
Next question is where is it best to tap into the intake manifold
between the sc unit and the head for the pressure gauge? I have a
case bolt which is drilled through to the output port of the SC so
If I ran a hollow bolt there I could attach the gauge there and not
have to drill the manifold.
Thanks for the help, Terry Grass Valley, California TC2285
Re: TC Supercharger Carburetor help
Posted: Mon Jun 20, 2005 5:24 am
by joecurto@aol.com
Terry I think your problem stems from the fact that Italmechanica
/SCOTT did not use an SU carb, but a big side draught Solex, using the SU wants
to put the dome through the bonnet. If I remember from old ads I have seen the
inlet manifold comes from the to of the blower and sort of snakes down the
back.
Where country are you located maybe I can help
Joe Curto
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