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Old 01-23-2018, 04:19 AM   #1
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Flex lite controller

My flexlite fan controller stopped working, fan stays on all the time. Any other better cheaper generic options or should I just go with the stock type again?

Thanks, Christof.

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Christof Matthys - 2003 2x4 QC Ram hemi - 0-60: 5,4 sec @ 6900 pounds - tuned by Charged392 - 392 stroker - vararam - Flexalite Efan - 170 T stat - Taylor shorty wires - pacesetter headers - true duals - evap delete - airco delete - truetrac lsd rear diff, 3.92 gears, T56 6 speed manual - homebuilt rear axle flip - Charged 392 design longbars - energy suspension poly bushings - michelin contisportcontact 275/30 R20 - 2/4,5 drop - hydroboost swap - srt front 4 piston caliper swap - PLX Devices AFR, fuel pressure, OBDII logger

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Old 01-23-2018, 08:32 AM   #2
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Google Fan Controllers you can find some better units and some have cheaper prices.
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Old 01-23-2018, 10:44 AM   #3
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I have been using this one for a couple of years.
https://www.summitracing.com/parts/hda-3651
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Old 01-23-2018, 02:40 PM   #4
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Amazon has the Hayden Automotive 3651 Adjustable Thermostatic Fan Control for $29.98 with free shipping.
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Old 01-23-2018, 03:36 PM   #5
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I use the simple push thru readiator style as a trigger for a relay never had an issue yet
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Old 01-24-2018, 12:45 PM   #6
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Quote:
Originally Posted by Redtruck-VA View Post
I have been using this one for a couple of years.
https://www.summitracing.com/parts/hda-3651
Where do you screw the sensor into?

Probably gonna go with the push through sensor one, just for ease of installation. That type is apparantly called capillary type thermostat, will look if I can find one locally, otherwise I'll get raped on shipping and import taxes again

Anyone here happen to be an expert on capillary thermostats? Can I just by any which one with the correct temp range? The stock flexalite fan is a 16a/250v one, I'm guessing it's just a simple on off switch that opens when the set temp is reached, or is there more to it?
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Christof Matthys - 2003 2x4 QC Ram hemi - 0-60: 5,4 sec @ 6900 pounds - tuned by Charged392 - 392 stroker - vararam - Flexalite Efan - 170 T stat - Taylor shorty wires - pacesetter headers - true duals - evap delete - airco delete - truetrac lsd rear diff, 3.92 gears, T56 6 speed manual - homebuilt rear axle flip - Charged 392 design longbars - energy suspension poly bushings - michelin contisportcontact 275/30 R20 - 2/4,5 drop - hydroboost swap - srt front 4 piston caliper swap - PLX Devices AFR, fuel pressure, OBDII logger

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Old 01-24-2018, 01:03 PM   #7
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I call it a bulb type sensor or wet bulb.. there has to be a increasing resistance associated with temp. The high and low set points usually have a 10 degree minimum seperation. Mine is set to come on 203F and off at 192F.
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6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1956 Jeep Pickup Hemi powered "Street Rod project"

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

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Old 01-24-2018, 03:32 PM   #8
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I installed a Flex-a-lite (32082) 1-1/2 adapter in my upper radiator hose, and a Flex-a-lite 32050 water temp. sensor screwed into one of the ports on the adapter.
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Old 01-24-2018, 05:27 PM   #9
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The bulb type sensor I have is adjustable you set the trigger point you want it to run at. That in turn simply grounds my fans relay for activation. So I am using low amps side to trigger relay the bulb has yet to fail or burn up in over 11years yes 11!
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Old 01-25-2018, 02:19 PM   #10
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Found one locally for about 75$, same price for the one with the push through probe or with the inline sensor.

Ease of installation the probe wins hands down, so what are the advantages of the inline type sensor? Would have to make some kind of fitting inline in the waterhoses to fit the sensor. Or maybe put a T connector on the stock water temp fitting hole and fit both the stock and the aftermarket to it?.
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Christof Matthys - 2003 2x4 QC Ram hemi - 0-60: 5,4 sec @ 6900 pounds - tuned by Charged392 - 392 stroker - vararam - Flexalite Efan - 170 T stat - Taylor shorty wires - pacesetter headers - true duals - evap delete - airco delete - truetrac lsd rear diff, 3.92 gears, T56 6 speed manual - homebuilt rear axle flip - Charged 392 design longbars - energy suspension poly bushings - michelin contisportcontact 275/30 R20 - 2/4,5 drop - hydroboost swap - srt front 4 piston caliper swap - PLX Devices AFR, fuel pressure, OBDII logger

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