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Old 02-27-2015, 11:29 AM   #1
Deke736
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Heat Exchanger Question

So I am planning to install an AFCO dual fan heat exchanger and D3PE reservoir tomorrow and I want to ask if anyone has installed a manual switch to control the pump and fans. Is it difficult to do?

Is there any specific coolant I need to use?
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Old 02-27-2015, 12:12 PM   #2
KaBoom1701
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I would think a "heat" temperature activated switch would work out better no?
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Old 02-27-2015, 01:37 PM   #3
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Quote:
Originally Posted by KaBoom1701 View Post
I would think a "heat" temperature activated switch would work out better no?
The fans will still be hooked up to the T-stat and will be temp activated, but I have seen it before where people have alson installed a switch to manually run the fans and coolant pump when the car is cooling down in the pits.

The Lingenfelter HX with fans comes with an option to install a manual switch, so I was wondering if anyone had tried this on the AFCO unit, which is basically identical.

EDIT: I just called AFCO directly and got input from their engineering dept. They recommended against a manual switch, but said that if I wanted to go this route, then the orange wire would get ran to the battery then back to the switch.

I may skip this now based on their recommendation.
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Old 02-27-2015, 08:59 PM   #4
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Quote:
Originally Posted by Deke736 View Post
I just called AFCO directly and got input from their engineering dept. They recommended against a manual switch, but said that if I wanted to go this route, then the orange wire would get ran to the battery then back to the switch. I may skip this now based on their recommendation.
What was their rationale?
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Old 02-27-2015, 11:48 PM   #5
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manual switch is good if your doing 1/4 mile stuff so you can leave the fans on after you turn the car off..
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Old 02-28-2015, 09:14 AM   #6
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I have the same HX and reservoir. My tune was changed so that all 4 fans; 2 on HX and 2 on radiator, come on with the key being turned on.

Drag racing:
After the pass, I park, turn the motor off, lift the hood, and turn the key so that the fans continue running to prevent heat soak.

Road racing:
After a cool down, I do the same thing, I open the hood and let the fans run helping cool everything down quicker.

I have never had the battery die, as that is all I had on and we're only talking about 10 minutes of running the fans,

Last edited by Nickey31; 02-28-2015 at 06:44 PM.
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Old 02-28-2015, 04:48 PM   #7
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My Spal fans have a manual switch, it is a lot of help if you need to work on something, just flip the fans on and walk away and in about 15 minutes after a wide open run I can change the plugs without getting burned. It is good to keep a battery charger on hand if you are running fans, water pumps and nitrous bottle warmers when the car is off.
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Old 03-02-2015, 01:53 PM   #8
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Ok, so I found out there is a much easier way to control the fans and pump, if you have Aeroforce Interceptor gauges install like I do. Doing a random search, I came across this helpful video showing that the gauges have controls for the radiator fans and the IC pump built-in. I haven't tried this yet, but I will be testing it tonight.

http://youtu.be/izRNfisWtlg

EDIT: this is a recent update to the firmware, so it looks like I will need to send my gauges in for an upgrade. Good news is that the update also includes an alcohol percentage readout function for E85 conversions, which I'll be doing soon.
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