Mad Max and blower drives

[Wayne Blair]

The switch activated Blower on the Ford Cleveland  in the XB Falcon Coupe
that apperared in the Mad Max movie is a gimmick. The blower was an empty
case - carb inside.

Have you noticed that all the light duty blower belts are grooved to allow
slip when things go hickup, the big boy stuff has teeth (no slip) and there
is usually lots of work done on the front of the crank to cope with this
including larger snouts and out rigger bearings. 

For interest the standard drive for GM blowers is a short "axle" like rod
about  12 mm thick, and the blowers are run at about 200% ie less than
5000rpm max. An air box pressure of about 5-8 psi is achieved by a 420 cu
blower on a 426 cu 2 stroke engine.

GM 2 stroke diesel have ports in the side of the bore and exhaust valve in
the head, the blower is needed to help fill the cylinder with clean air.
the block of 6-71 can be used in many configurations sometimes the blowers
looks like it is on the exhaust side.  GM will run with out a blower  - just.

maybe of interest

<<<<<<<<<<<<<<<< bye >>>>>>>>>>>>>>>>>
wayne
[Brisbane Australia]