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Old January 18th, 2008, 09:02 PM
Landspeed's Avatar
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Langdon Hill
D-90 SW
Join Date: Oct 2007
Location: Aravaipa Arizona
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Ac Condenser fans

I experimented with an install of 2 larger AC condenser fans. I was installing a wiring harness and had the grill off and I replaced the

SPAL 9 inch 623 CFM fan with 2 Hayden 650 CFS @ 1200+-. The fit looked good. However I donít hear them turning on when I turn on the AC. I hoped the in 40% increase would be "cool" Also I am getting more air centered onto the intercooler and the radiator.

It is cold and perhaps the thermostat is not turning them on? I thought that when ever I turned the ac on, the fans came on too, or am I imaging things?

So far they have not turned on. The fuses in the cab are good. I have not gotten the engine warm enough? Or did these come on automaticaly?

The wire to the thermostat looks like it should have no problem with the increase in amps. The original was 7.2. Any experience with this out there?

Thanks Lang
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Old January 22nd, 2008, 06:28 PM
Eddie 1's Avatar
Eddie 1
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Disco 1 TDI 300 SE
Join Date: Jan 2007
Location: Trinidad
Posts: 33
I had the motors on my disco changed but I reused the old fan blades and housing. I'm not sure which motors I used as they came from a Japanese car salvage yard.

Mines come on as soon as the AC is switch on even if the engine hasn't warmed up.

I'm not sure why yours is not coming on!

Did you check the fuse in the box next to the battery as well?

Originally Posted by Landspeed
I hoped the in 40% increase would be "cool"
Another question based on the quote ... How did you compute the 40% increase?
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