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Electric Fan, Soft Start, Contour Upgrade

  • Thread starter Thread starter revhead347
  • Start date Start date Jun 9, 2021
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revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
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Acworth, GA
Jun 9, 2021
#1
  • Jun 9, 2021
  • #1
So I have decided to finally get around to putting a better fan on my car, which means a Contour fan. I've been reading quite a bit tonight, but it would appear this can be done with the factory CCRM. Does anyone know of a soft start mechanism that can be used that is not part of a dedicated fan controller.

Kurt
 

KRUISR

10 Year Member
Apr 16, 2015
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#2
  • Jun 9, 2021
  • #2
Use the Contour low speed as main fan speed, relay for low speed triggered/controlled/turned on by the CCRM. Wire high speed relay to a toggle for backup if needed.

By using low speed there is not a large load spike. To be honest I can barely hear low speed running when the car is off.
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,297
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Acworth, GA
Jun 9, 2021
#3
  • Jun 9, 2021
  • #3
KRUISR said:
Use the Contour low speed as main fan speed, relay for low speed triggered/controlled/turned on by the CCRM. Wire high speed relay to a toggle for backup if needed.

By using low speed there is not a large load spike. To be honest I can barely hear low speed running when the car is off.
Click to expand...
Honest question here. The CCRM has a low speed, and high speed circuit already in it. Why not just use that functionality? Naturally the temperature rise will trigger the low speed first, which will buffer the spike when the high speed comes on. As hot as this car runs, I'm pretty sure I'm going to need high speed very frequently.

Kurt
 

KRUISR

10 Year Member
Apr 16, 2015
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#4
  • Jun 10, 2021
  • #4
I'm not familiar of what functions the CCRM has. I know it does a few things and they can corrode and fail.

Now that I think about it, it would have high and low for the factory e-fan. I am not sure how much softer of a low speed start you are trying to achieve (or would even need).

If the factory fan did not have external relays I would still suggest a pair of 70 Amp relays, triggered by the CCRM. One relay for high, one for low.
 
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revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,297
1,641
214
Acworth, GA
Jun 10, 2021
#5
  • Jun 10, 2021
  • #5
KRUISR said:
I'm not familiar of what functions the CCRM has. I know it does a few things and they can corrode and fail.

Now that I think about it, it would have high and low for the factory e-fan. I am not sure how much softer of a low speed start you are trying to achieve (or would even need).

If the factory fan did not have external relays I would still suggest a pair of 70 Amp relays, triggered by the CCRM. One relay for high, one for low.
Click to expand...
I might go that route (using the CCRM to trigger a second set of relays). It's probably the safest bet anyway. I was just thinking of keeping it simple, and reducing the number of relays that could fail. A lot of these independent fan controllers have a soft start feature that keeps the fan from spike loading to 70 amps when the fan kicks on. I was hoping I could get the soft start with out the fan controller as the SN95 ECM already has fan control. It would keep a lot of load off the CCRM.

Kurt
 

KRUISR

10 Year Member
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#6
  • Jun 10, 2021
  • #6
revhead347 said:
A lot of these independent fan controllers have a soft start feature that keeps the fan from spike loading to 70 amps when the fan kicks on.
Click to expand...
I don't get it. Everyone seems afraid of the Contour fans starting (with the potential of a power spike). Think of it this way... ECU (or a controller) firing a relay rated at 70 amps is exactly how the Contour/Mystique/Cougar did it from the factory. They made 100's of thousands of these cars, ALL using this system for the fans (that we are trying to use). I have NEVER heard of a Contour having issues with the relays or fans. Just use the factory sized wires, relays and you will not have an issue.

Contours used a 130 amp alternator as well. I have personally owned 3 Contours for a total of over 750,000 kms and NEVER a fan/relay/fan wiring issue or power spike issue. Don't fear how the factory did it - why re-invent the wheel. A soft start is not needed.
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,297
1,641
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Acworth, GA
Jun 10, 2021
#7
  • Jun 10, 2021
  • #7
KRUISR said:
I don't get it. Everyone seems afraid of the Contour fans starting (with the potential of a power spike). Think of it this way... ECU (or a controller) firing a relay rated at 70 amps is exactly how the Contour/Mystique/Cougar did it from the factory. They made 100's of thousands of these cars, ALL using this system for the fans (that we are trying to use). I have NEVER heard of a Contour having issues with the relays or fans. Just use the factory sized wires, relays and you will not have an issue.

Contours used a 130 amp alternator as well. I have personally owned 3 Contours for a total of over 750,000 kms and NEVER a fan/relay/fan wiring issue or power spike issue. Don't fear how the factory did it - why re-invent the wheel. A soft start is not needed.
Click to expand...
You and I are of the same mindset. I am just proceeding with an abundance of caution. I am pretty confident that if I plug the factory CCRM into the fan, it will work fine. I am fairly certain that Ford maintained the same engineering standards between 95' and 00'. If anything, I might have to install a slow blow fuse on the circuit to handle the spike.

Kurt
 

KRUISR

10 Year Member
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#8
  • Jun 10, 2021
  • #8
What is the factory fusing on your year (as you did have factory e-fan)? Contour uses a 60 fuse to power both relays.


Factory Contour relay portion of engine bay fuse box. Middle of the 3 mega fuses is the 60 used for the fans. The other 2 are now spares.



How I wired my systems (both my Mustang and F150). Wire sizes are factory Contour sizes.
 
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revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,297
1,641
214
Acworth, GA
Jun 16, 2021
#9
  • Jun 16, 2021
  • #9
KRUISR said:
What is the factory fusing on your year (as you did have factory e-fan)? Contour uses a 60 fuse to power both relays.


Factory Contour relay portion of engine bay fuse box. Middle of the 3 mega fuses is the 60 used for the fans. The other 2 are now spares.



How I wired my systems (both my Mustang and F150). Wire sizes are factory Contour sizes.
Click to expand...
I'll have to look into that. Thank you for replying. My bathroom tub started leaking last week, and this instantly got thrown on the back burner. I'm about 7 days into a $10k bathroom remodel, so it might be awhile.

Thanks,
Kurt
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
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polk county florida
Jun 17, 2021
#10
  • Jun 17, 2021
  • #10
All that money wasted for a room so you can 'give a '.
 

nickyb

I gotta say i never painted my nuts, Never Ever
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#11
  • Jun 17, 2021
  • #11
General karthief said:
All that money wasted for a room so you can 'give a '.
Click to expand...
If he ain't giving a then he's taking , better to give them to ,you know.
 
Reactions: General karthief

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,297
1,641
214
Acworth, GA
Jun 17, 2021
#12
  • Jun 17, 2021
  • #12
General karthief said:
All that money wasted for a room so you can 'give a '.
Click to expand...
No kidding man. This bathroom is a total time and money suck. Plus everything is through the roof price wise, and on back order. Pretty sure if you ordered a blow job right now, it would take 2 weeks to get it.

Kurt
 
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96pushrod

I think they're a little easier to get off
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#13
  • Jun 22, 2021
  • #13
Hey Kurt the stock 94+ fan isn’t cutting it? I see no temp issues with my car and we see the same weather as we live somewhat close
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,297
1,641
214
Acworth, GA
Jun 23, 2021
#14
  • Jun 23, 2021
  • #14
96pushrod said:
Hey Kurt the stock 94+ fan isn’t cutting it? I see no temp issues with my car and we see the same weather as we live somewhat close
Click to expand...
Sorry, fricken bathroom has had me tied up. Found a second water leak, gutters are leaking into the soffets. So it's new gutter time too.

The car has always had temperature creep in traffic. I would say it's actually hotter where you live. If I have airflow it will stay dead steady around 190 degrees. Too many stop lights, and it starts creeping north of 220. I've heard the 98' and older AC condensors can restrict flow, but it's definitely an air flow problem.

Kurt
 
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96pushrod

I think they're a little easier to get off
5 Year Member
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#15
  • Jun 24, 2021
  • #15
revhead347 said:
Sorry, fricken bathroom has had me tied up. Found a second water leak, gutters are leaking into the soffets. So it's new gutter time too.

The car has always had temperature creep in traffic. I would say it's actually hotter where you live. If I have airflow it will stay dead steady around 190 degrees. Too many stop lights, and it starts creeping north of 220. I've heard the 98' and older AC condensors can restrict flow, but it's definitely an air flow problem.

Kurt
Click to expand...
The joys of home ownership lol.

I know it’ll be hot as hell outside and I pretty much never see anything over the 180* I have the stock fan cutting on at. Maybe like 182* or so then it comes back down. Granted I don’t have an a/c condenser in front of the radiator, but It’s tough to fathom it would equate to 40*+ of temperature difference.

Of Course I’ve been wrong before.

You confirmed the “high” speed of the fan is coming on? I’ve actually got mine wired to only use the high speed portion of the wiring. Didn’t even bother to use a soft start controller or anything, just a straight leash relay. I see a minuscule rpm drop when it comes on, but I have to be really paying attention to even notice.
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,297
1,641
214
Acworth, GA
Jun 28, 2021
#16
  • Jun 28, 2021
  • #16
96pushrod said:
The joys of home ownership lol.

I know it’ll be hot as hell outside and I pretty much never see anything over the 180* I have the stock fan cutting on at. Maybe like 182* or so then it comes back down. Granted I don’t have an a/c condenser in front of the radiator, but It’s tough to fathom it would equate to 40*+ of temperature difference.

Of Course I’ve been wrong before.

You confirmed the “high” speed of the fan is coming on? I’ve actually got mine wired to only use the high speed portion of the wiring. Didn’t even bother to use a soft start controller or anything, just a straight leash relay. I see a minuscule rpm drop when it comes on, but I have to be really paying attention to even notice.
Click to expand...

The house thing never ends. New gutters went up today. Went to put the inset medicine cabinet in the wall only to find that the drainage vents were run right through that small section of wall, so that all has to be re routed.

The fan is coming on high speed. I generally don't have too much trouble keeping it cool with the AC off. It's my balls that overheat in those conditions. If I leave the AC off, it stays below 200 generally. Well within the acceptable range. I'm trying to get more air through it so I don't have to make any compromises.

Kurt
 

KRUISR

10 Year Member
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#17
  • Jun 28, 2021
  • #17
I just did a 5 hour trip today with AC going the whole time. I had my low speed fan on whole time as well. Temps outside were 86-90*F and 105*F with the humidity.

With fan switched off coolant temp would climb to just below triggering low speed while driving (AC off) which is 205*F. With low speed manually turned on and AC on, Temps stayed lower, I would estimate around 180 or so (that's the t-stat I have).
 

96pushrod

I think they're a little easier to get off
5 Year Member
May 15, 2018
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871
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Savannah
Jun 28, 2021
#18
  • Jun 28, 2021
  • #18
revhead347 said:
The house thing never ends. New gutters went up today. Went to put the inset medicine cabinet in the wall only to find that the drainage vents were run right through that small section of wall, so that all has to be re routed.

The fan is coming on high speed. I generally don't have too much trouble keeping it cool with the AC off. It's my balls that overheat in those conditions. If I leave the AC off, it stays below 200 generally. Well within the acceptable range. I'm trying to get more air through it so I don't have to make any compromises.

Kurt
Click to expand...
Just lop those balls off, problem solved lol.

You still running the stock radiator?
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,297
1,641
214
Acworth, GA
Jun 29, 2021
#19
  • Jun 29, 2021
  • #19
96pushrod said:
Just lop those balls off, problem solved lol.

You still running the stock radiator?
Click to expand...
Sounds like a possible solution since I am done re producing.

No, I have 2" aluminum C&R radiator.

Kurt
 

7991LXnSHO

wanna catch the space herp
10 Year Member
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Jul 1, 2021
#20
  • Jul 1, 2021
  • #20
revhead347 said:
Sounds like a possible solution since I am done re producing.

No, I have 2" aluminum C&R radiator.

Kurt
Click to expand...
Heat shield on the floor would be less painful and less than your health insurance deductible. Sitting on a blue ice pack would be even cheaper and chillier.
 
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