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Old 03-28-2008, 02:51 AM
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Default Dual spal fans

I have to run 2 hot wires to the bat or within 12" of the bat,i know this has been hashed out before but did you guys hook up directly to the bat or somewhere else they gave me a mile of wire so i suppose i could run the wires under the car along the frame and put the relays under there somewhere or is there a better way

I wish wiring was as easy as installing the new Dewitt alum rad,that took a whole hour to take the old one out and install the new one
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Old 03-28-2008, 03:05 AM
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IF you have a solid stae controller, the battery is a good source, as it is almost pure DC there. IF you are using the relay kit, just run to the alternator output terminal with a large hole ring terminal.
I suggest feeding the relay control circuit from a keyed on hot.
Fans running engine off is pointless. It can also be a hazard if the fans operate without warning.
Hope this helps.
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Old 03-28-2008, 03:17 AM
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Yeah that will work,i do have to find a keyed hot source but that's not a big deal. thanks for the input i will just run those 2 hot wires right to the alt and do away with about 8' of wire also
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Old 03-28-2008, 08:03 PM
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it works,but if it was not for Todd comming over to help with the wiring (btw i hate wiring)i would still be in the garage because once it was all done we grounded the sensor to make sure the fans would work and they did,so we started the car,the fans are supposed to come on at 195 shut off at 175 well around 205 nothing So Todd put a ground to the switch to make it come on and it did the motor cooled down but the fans would not come back on,Todd asked me if i grounded my rad,i said no,well dummy your switch won't work unless the rad is grounded
ran a ground to the rad and Woollaaa it worked,the instructions said nothing about this
But all is well now.
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Old 03-29-2008, 06:02 PM
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UAAAH....the RAD itself sits on rubber supports, total electrical isolation from the car...probably on pourpoise to keep corrosion down....

I ground everything to that front cross support holding the A arms on....

fresh metal, screw with star washer, tighern hell, then RTV over top for security against corrosion....

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Old 03-29-2008, 06:58 PM
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Quote:
Originally Posted by mrvette View Post
UAAAH....the RAD itself sits on rubber supports, total electrical isolation from the car...probably on pourpoise to keep corrosion down....

I ground everything to that front cross support holding the A arms on....

fresh metal, screw with star washer, tighern hell, then RTV over top for security against corrosion....

Yes, but Gene, you rust just standing there.
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Old 03-29-2008, 11:29 PM
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Took the car out for a drive about 20 miles or so and the motor never reached 195* so the whole time while i was driving the fans never came on,not untill i got back home and was waiting for the garage door to open,then the motor finally reached 195* to turn on the fans
I'm sure come summer time they will come on while driving,but it made the drive much more pleasent that damm steel fan with no clutch made alot of dang noise,i can here my radio now with the windows up and the t-tops on
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Old 03-29-2008, 11:49 PM
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Glad you can drive it! Back must be doin good?
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Old 03-30-2008, 01:52 AM
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Back is doing pretty darn good,the hard part of driving the vette right now is getting in and out keep hitting my head because i can't bend enough
if it was warm enough to take the t-tops off it would be much easier and save some cussing but i had to drive it,couldn't wait any longer.
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Old 03-30-2008, 02:14 AM
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Is it hooked up single or two stage?
I recommend anyone with A/C to hook up 1 fan to cycle with the A/C compressor.
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