SRX fan data
For those who want to use the King Kong of PWM fans, the Cadillac SRX turbo fan that Mark Stielow uses, here is the part number and programming data from Mikels over on the Camaro XV thread:
"SRX turbo fan part number is 25931645 as you show. PWM controller is built in to fan motor - so no separate module like Corvette fan.
Max PWM duty cycle is 90% positive polarity @ 100 Hz (need this for calibration). Size wiring & fuse appropriately - 64 AMPS peak.
First used this fan on Red Devil and dropped coolant and oil temps ~10F just by changing to this fan from 400W Corvette fan.
Dave"
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