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Brownwood
Keith Montague

(176 posts)

Registered:
01/25/2014 08:08PM

Main British Car:


Radiator Fan Controller
Posted by: Brownwood
Date: January 02, 2016 01:52PM

Was out driving the MGB and noticed my electric fan didnt always come on when the engine got warm. I am using a Hayden adjustable controller and it seems to be a piece of crap! This is my 2nd failure in 500 miles.

Need some suggestions on a good controller. I would like something adjustable.


waterbucket
Philip Waterman
England
(112 posts)

Registered:
07/30/2011 01:08PM

Main British Car:
1972 MGB GT

Re: Radiator Fan Controller
Posted by: waterbucket
Date: January 02, 2016 05:28PM

I have never used one but Davies Craig has had good reviews and the latest version can control an electric water pump as well. The clever bit is that it can do away with the thermostat and control the engine temperature automatically.
[daviescraig.com.au]
Philip


Charles
Charles Long
McDonald, TN
(177 posts)

Registered:
09/15/2013 08:54AM

Main British Car:
1966 MGB V6 1994 Camaro 3.4L 60V6

authors avatar
Re: Radiator Fan Controller
Posted by: Charles
Date: January 02, 2016 11:23PM

I am using one from Dakota Digital, has several nice functions. It is their PAC-2750, I am controlling a Volvo S70 two speed fan with the Volvo relay unit. I also control the low speed fan to come on with the A/C. I have setup through the ECM to idle the engine up to about 1100 rpm so all of the fans runs at max speed. No over heating while sitting for 2 hours in 97 degrees with the A/C on waiting for Military procession to pass in 2015 here in Chattanooga. OBTW I have a GM 3.4 V6 FI


Brownwood
Keith Montague

(176 posts)

Registered:
01/25/2014 08:08PM

Main British Car:


Re: Radiator Fan Controller
Posted by: Brownwood
Date: January 03, 2016 07:53PM

Charles. ordered a Dakota Digital today. seems like a good balance between quality and price. The reviews are excellent and your comentary put it over the top for me.


rficalora
Rob Ficalora
Willis, TX
(2764 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: Radiator Fan Controller
Posted by: rficalora
Date: January 12, 2016 07:02PM

I use a BMW temp sender that has two temp switches in it. One sender controls turning the fan on low & high. Not quite as good as the high end controllers that adjust the speed of the fan based on temp, but simple & works if you have a multi-speed fan. Only issue was it's an M14 thread so I had to tap a fitting for it.


Brownwood
Keith Montague

(176 posts)

Registered:
01/25/2014 08:08PM

Main British Car:


Re: Radiator Fan Controller
Posted by: Brownwood
Date: January 13, 2016 09:22AM

The Dakota digital controller worked great! I did have to order their sending unit since I am using the stock MGB temp gauge. I like the adjustability and it was easy to set up. Only problem was that it has to be mounted inside the cockpit of the car, but that was only a small issue.


Robrover
Rob Thornton
Adelaide, Australia
(20 posts)

Registered:
10/01/2009 11:52PM

Main British Car:
1978 Rover SD1 4.6

Re: Radiator Fan Controller
Posted by: Robrover
Date: January 23, 2016 09:33PM

Brian Baskin's Delta Current Controller - pulse width varies the fan speed to maintain a constant stable coolant temp which you can set, it slowly speeds up as needed rather than pulling a lot of current to go full speed.
I also have the LED on my dash that tells me what the fan is doing - it changes color depending whether the fan is off (green) at partial speed (orange), and full speed (red), along with a dial that lets me adjust the set temperature that I want to maintian the coolant at - the DCC does the rest.



kstevusa
kelly stevenson
Southern Middle Tennessee
(985 posts)

Registered:
10/25/2007 09:37AM

Main British Car:
2003 Jaguar XK8 Coupe 4.2L DOHC/ VVT / 6sp. AT

authors avatar
Re: Radiator Fan Controller
Posted by: kstevusa
Date: January 24, 2016 07:36AM

As Rob noted above, the D.C.C. is the real deal. I installed 1 on my conversion in 2005 and it is still going. Brian has made several improvements over the years , but this is 1 great controller. Google Delta Current Control ans see what he has available.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6468 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Radiator Fan Controller
Posted by: BlownMGB-V8
Date: January 24, 2016 11:42AM

Use that to also control an electric water pump, ditch the thermostat, and you might have a real slick temp control system. But I wonder if convection current would keep it from warming up in the winter.

Jim


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