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Old 01-26-2004, 10:18 PM
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Question Duel Electric Fan Questions..help needed

I recently came across a deal for a duel electric fan from a "gran-marquis", that a dealership's service center employee had. He said he took it out of the car because the fan's shroud had a chip in it, not big at all and looks like it can be glued back together.

The point is that its a duel fan from a v8 "gran marquis" and i was wondering would i have any kind of charging problems, even though i have No a/c, no radio, only the headlights/taillights on (of course only at night).

Also i have no idea what the year of the "gran marquis" is but I do know that one fan across measures 15" in diameter (30" total), ANY insight as to what the CFM on that is?

i have a 31*19 aluminum summit radiator

thanks

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Old 01-27-2004, 12:40 AM
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First off we need more info here, what kind of car and engine?

Quote:
Also i have no idea what the year of the "gran marquis" is but I do know that one fan across measures 15" in diameter (30" total),
Not really true the center part of the fan where the motor sits does not draw air, so you'll need to measure that and deduct it from the fan total.

I've seen some guys set the fans up on separate temp sensors so if it's a cool day only one fan will run until the temp gets high enough in the radiator to turn the other one one.

Regards
Mark
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Old 01-27-2004, 11:41 AM
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When you wire them up, wire them through relays that are large enough to handle the current surge at startup.
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Old 01-27-2004, 04:21 PM
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you need to test them to see how many amps they draw when they start and when they run. I just built a dual fan setup using two 12" fans from a camaro, they draw 6 amps each when running, but the peak at 20 amps each when they start. I used the fan thom II kit from painless wiring, it has a 30 amp relay with a resettable circuit breaker, works great.
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Old 01-27-2004, 10:54 PM
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i finally figured out the make of my dual fan's ( Siemens) w/ 15" each fan. What cars come with Siemens dual fans??

another thing..would I be ok with a stock 87 mustang 5.0 alternator, ( I do not have A/C, no radio, no computer, just the external lights and a Crane Fireball ignition)
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Old 01-30-2004, 12:49 PM
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NO PROBLEM

You will be fine. I wired mine in my 52 210 to the battery. Car starts no problems. After it warms up the fans come on, no problem. When I turn the car off the fans run until the radiator cools down, no problem. Running this way for two years now. No Problem.

hr41pearl
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