85_SS
Member
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:
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):
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!
Here's the final schematic and wiring diagram I designed:
Mark VIII fan installed:
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):
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!
