I am in the bay area and I also run a electric fan with single turbo upgrade. I put it on myself and it's the biggest this company makes, supports V8's over 500HP.....Model #3716 from Pep BOys(not sure the manu.)...I had to fabricate some brackets for it, but other than that it runs great, mine only draws ~12 amps...and I have it wired in an ignition source under the dash....stays on with turbo timer. I have never over heated at all..stop and go, or highway...I like it. Contact privately for pics...
Good Luck