Mark VIII fan install
04-16-2009, 06:41 PM
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Car: 1985 Monte Carlo SS
Engine: 5.7L
Transmission: WC T-5
Axle/Gears: 3.73:1
Mark VIII fan install
I'm not sure how well this fan fits 3rd gen F-bodies, but know the rad is roughly the same size as a g-body so I thought share in case anyone is interested. After finding out that the Mark VIII fan was too much for the SPAL V3 to handle, I decided to scrap the whole controller idea and make up my own harness/diagrams for a hopefully trouble free system. I designed it so that it operates much like an electric fan in newer cars. It also has a high speed manual override switch, as well as feedback through a single RGB LED for the various states (high/low/AC).
Here's the final schematic and wiring diagram I designed:
Mark VIII fan installed:
Here's the final schematic and wiring diagram I designed:
Mark VIII fan installed:
Last edited by 85_SS; 04-17-2009 at 12:23 PM.
04-16-2009, 06:42 PM
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Car: 1985 Monte Carlo SS
Engine: 5.7L
Transmission: WC T-5
Axle/Gears: 3.73:1
Re: Mark VIII fan install
Relays/custom harness wired up and ready to go:
(figured I may as well make use of the Maxi-fuse holder from a painless 70A wiring kit I decided not to use)
Relay rack fits nice and snug next to battery (one more relay was added for proper LED control due to fan motor feedback on opposite speed):
(figured I may as well make use of the Maxi-fuse holder from a painless 70A wiring kit I decided not to use)
Relay rack fits nice and snug next to battery (one more relay was added for proper LED control due to fan motor feedback on opposite speed):
04-16-2009, 06:42 PM
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Car: 1985 Monte Carlo SS
Engine: 5.7L
Transmission: WC T-5
Axle/Gears: 3.73:1
Re: Mark VIII fan install
And finally here's the LED in the different stages (mounted at manual override switch/temp gauge):
Off:
Low Speed:
High Speed:
A/C:
It will be nice to finally have a trouble free, fully operational fan setup - beats the unreliability of these worthless controllers out there!
Off:
Low Speed:
High Speed:
A/C:
It will be nice to finally have a trouble free, fully operational fan setup - beats the unreliability of these worthless controllers out there!
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