In reply to a message from awg sent Sat 6 Feb 2016:
Hi Roger, and other S1 owners
Although it will take a few more hours work to get
everything installed, it does seem 99% that a GM VT
Commodore fan MOTOR, is an almost direct transplant for the
MKX/420G/S1 XJ etc fan motor.
I obtained a complete unit with speed controller for $40
The speed control is not wired
It is rated at 300 Watt, and the airspeed is simply awesome
compared to the Jag units, which draw ~60 Watts by my calcs.
Dimensions are within mm, and 2 of 3 mounting legs even line
The shaft OD is 7mm, compared to 6.4mm for the 420G.
The original squirrel metal cage must be retained, as fit is
close, the plastic Commodore one is too big
I intend to turn the shaft down by spinning the motor while
applying files and emery paper, as the 420G squirrel cage
mounting system is very well engineered.
I have to make sure everything is very well made, the fan
spins so fast, any miscalculation would not be good.
In addition, this fan will spin either CW ( as indicated) or
CCW if polarity is reversed.
My Mrs daily driver is a later model of this car, and the
fan on full nearly tears your face off, I set it that way on
very hot days, only one is in most modern cars apparently
GM VT Commodore would be one of the most commonly wrecked
vehicle in Australia–
The original message included these comments:
If I replace the DRIVER side motor only, that may give me
the desired result, the original cage wheel grafted on.
If it spins TOO fast, current limiting can be employed
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