 Water Cooled Question, Fan sequencing / works great! |
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| 76-914 |
  Dec 6 2013, 11:18 AM
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#1
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Repeat Offender & Resident Subaru Antagonist  Group: Members Posts: 13,634 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California 
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For my Suby 6 conversion I've installed a twin fan system (from a Dodge) on my radiator. One is single speed (3 wire) and the other is 2 speed (4 wire). Which one of these 2 fans comes on first? Do they both run at times? Will I use the 2nd speed of the 2 speed motor?
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| mikesmith |
Dec 6 2013, 02:40 PM
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#2
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Member Group: Members Posts: 202 Joined: 5-September 13 From: SF Member No.: 16,354 Region Association: Northern California |
Based on a quick Google search, it looks like there are two fan control outputs from the Subaru ECU. One is marked "Only for A/C vehicles", so it's quite likely that it won't be switched unless the ECU thinks that the A/C is on.
To start with, I'd wire both fans to a suitably beefy relay and run both at full speed when the ECU asks. You could try to finesse it later (e.g. using a SPAL PWM controller with the ECU fan wire connected to the A/C input on the SPAL controller). |
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Posts in this topic
76-914 Water Cooled Question Dec 6 2013, 11:18 AM
mikesmith
For my Suby 6 conversion I've installed a twi... Dec 6 2013, 11:29 AM 76-914 I'm using the stock OEM Suby ECU. Dec 6 2013, 12:30 PM BIGKAT_83 I would turn the two speed on first at low speed a... Dec 6 2013, 04:58 PM
mgp4591
I would turn the two speed on first at low speed ... Dec 6 2013, 06:28 PM 76-914
I would turn the two speed on first at low speed ... Dec 7 2013, 08:41 PM
andys
I would turn the two speed on first at low speed ... Dec 9 2013, 01:21 PM BIGKAT_83
I would turn the two speed on first at low speed... Dec 9 2013, 01:45 PM BIGKAT_83 Started with a EG 3.3 and have since changed to a ... Dec 6 2013, 06:34 PM mgp4591
Started with a EG 3.3 and have since changed to a... Dec 6 2013, 06:50 PM Tom Old engineering principle , KISS. The more complic... Dec 6 2013, 07:17 PM mgp4591
Old engineering principle , KISS. The more compli... Dec 6 2013, 09:06 PM Mike Bellis I have mine on a dual thermostatic relays. They al... Dec 6 2013, 09:33 PM 76-914
I have mine on a dual thermostatic relays. They a... Dec 7 2013, 08:43 PM 76-914 Help :blink: I'm trying to figure this schema... Dec 8 2013, 08:41 PM Mike Bellis
Help :blink: I'm trying to figure this schem... Dec 8 2013, 09:22 PM Tom Kent,
It looks like both pins 33 and 42 would n... Dec 9 2013, 02:16 AM Chris H. Kent,
Don't want to throw a wrench into thin... Dec 9 2013, 09:48 AM BIGKAT_83 You can cool these subarus with almost anything. T... Dec 9 2013, 10:24 AM Chris H. What the... Bob you have one of every motorized th... Dec 9 2013, 10:31 AM CptTripps That is an awesome setup! Lots less intrusive ... Dec 9 2013, 12:29 PM CptTripps I'm having one hell of a time locating a radia... Dec 9 2013, 07:12 PM Mike Bellis
I'm having one hell of a time locating a radi... Dec 9 2013, 08:02 PM skeates
I'm having one hell of a time locating a rad... Dec 10 2013, 01:08 PM Mike Bellis
A little "confection" goes a long way i... Dec 10 2013, 07:39 PM BIGKAT_83
I'm having one hell of a time locating a radi... Dec 10 2013, 05:49 AM 76-914 Mike & Tom, Thanks for explaining things to me... Dec 9 2013, 07:27 PM BIGKAT_83
Mike & Tom, Thanks for explaining things to m... Dec 9 2013, 07:34 PM 76-914 Spoke too soon. I see relay 2 powering Fan #1 @ hi... Dec 9 2013, 07:44 PM CptTripps That got me thinking...what about the front radiat... Dec 10 2013, 10:07 AM Mike Bellis
That got me thinking...what about the front radia... Dec 10 2013, 10:27 AM CptTripps YeH, that's what I'm thinking too. Looks a... Dec 10 2013, 12:35 PM 76-914 Got my fans & relays wired in tonite :Qarl: I... Dec 12 2013, 10:12 PM Chris H. Gotta bump this great thread...Just a quick questi... Aug 25 2014, 11:22 AM 76-914 Es verdad, Christo. Looks funny but think of stack... Aug 25 2014, 05:20 PM Chris H. Cool thanks Kent! Just seemed weird not groun... Aug 25 2014, 05:22 PM 76-914 Thought I'd add this bit of info re: this styl... Sep 1 2014, 10:06 AM messix
Thought I'd add this bit of info re: this sty... Sep 1 2014, 10:54 AM |
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