Re: SPal fan conroller, or dual/oem upgrade?
cuisinartvette, I suggest you find a radiator shroud the covers the entire radiator and has two high capacity fans. At least 3,000 CFM each.
The more an electric fan moves in CFM, the more current it will draw. Some fans run over 20 amps each.
The positive and negatives should come directly from the battery, fuses in the positives. Each fan needs it's own relay.
Using the above controller, you can have one fan on at say 190 degrees and the second fan come on if the temps keeps rising to say 210.
Or, you can do a low speed/high speed fan setup with a series/parallel relay set, it takes three relays. In low, both fans run at low speed and in high, they kick up to full speed. Dual low speed fans are quieter that one at full speed.
How may I help you?
1971 Monte Carlo SS454-496ci 600hp
1999 Trans Am-500hp
2003 Iszu Ascender XL Limited V8