[DeTomaso] Dry Sump
MikeLDrew at aol.com
MikeLDrew at aol.com
Sat Jan 18 16:03:03 EST 2014
In a message dated 1/18/14 12 01 45, guson at home.se writes:
> Even without the wet sump and with an inverted transmission, doesn't the
> flywheel and bellhousing rather quickly limit the amount of lowering that
> can be done?
>
>>>If you do it properly, you fit a GT40 clutch/flywheel/bellhousing combo,
which is substantially smaller in diameter than the standard Ford/Pantera
setup. This is how the GT40 drivetrain was so low--I think a GT40 clutch is
only about 8 inches in diameter, compared to the standard Ford 11-inch
setup.
I don't know of any Panteras (with the possible exception of that
super-radical car in Australia that barely looks like a Pantera) that have gone this
far.
Safir GT40 Spares is the source for a modern, domestic GT40 clutch/flywheel
setup. It is VERY expensive (about $2500, not including the bellhousing).
Here is the flywheel:
http://i692.photobucket.com/albums/vv288/576103/GT40%20Safir%20clutch/Flywhe
el.jpg
With the clutch mounted:
http://i692.photobucket.com/albums/vv288/576103/GT40%20Safir%20clutch/Clutch
Flywheel.jpg
Bellhousing:
http://i692.photobucket.com/albums/vv288/576103/GT40%20Safir%20clutch/Finish
edBellhousing.jpg
Note that it is inverted in this picture--there is a cooling scoop at the
top of the photo which runs underneath the car to draw air into the bell
housing; it also acts as a skid plate. There is a mesh screen on the top to let
heat out.
http://i692.photobucket.com/albums/vv288/576103/GT40%20Safir%20clutch/SafirC
lutchBellhousing.jpg
Here is the whole enchilada together. The bosses on the sides are drilled
to accept the lateral bolts used on Dash-1 sideplates, and the two holes
are to accept the GT40 clutch slave cylinder. The GT40 slave is a common
part (lifted from Triumphs etc.) that has bosses cast into it. There is no
bracket associated with it; instead, the slave bolts directly to the
bellhousing. It operates vertically; that is, the piston faces the ground, and a
different-style arm is attached to the gearbox to release the clutch. The
arm is shaped similar to, but different sized from, a VW Beetle setup.
Mike
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