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> Water Cooled Question, Fan sequencing / works great!
76-914
post Dec 6 2013, 11:18 AM
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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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BIGKAT_83
post Dec 6 2013, 04:58 PM
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I would turn the two speed on first at low speed and then when the temp increased switch it to high speed with the second fan.
On my car I turn on both fans at half speed at 190 degrees and if the temp gets to 200 degrees both fans go to full speed.
This is easy to do using 3 relays. Slow speed is the fans wired in series and then put them in parallel for full speed.

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mgp4591
post Dec 6 2013, 06:28 PM
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QUOTE(BIGKAT_83 @ Dec 6 2013, 03:58 PM) *

I would turn the two speed on first at low speed and then when the temp increased switch it to high speed with the second fan.
On my car I turn on both fans at half speed at 190 degrees and if the temp gets to 200 degrees both fans go to full speed.
This is easy to do using 3 relays. Slow speed is the fans wired in series and then put them in parallel for full speed.

Sorry to temporarily hijack this thread, but BigKat- do you have a build thread for your 3.3 build? I haven't seen it and I'm doing the same, just planning stage now but I've got my donor and other pieces. I like your results!
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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
mikesmith   Based on a quick Google search, it looks like ther...   Dec 6 2013, 02:40 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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