Adjustable Fan Relay?
#1
Junior Member
Thread Starter
iTrader: (1)
Join Date: May 2006
Location: Phoenix, AZ
Posts: 401
Total Cats: -1
Adjustable Fan Relay?
Ok, for some reason, my car has been overheating lately. Now technically, it's not overheating as the OEM gauge doesn't even move, but with the AC on and on the highway, I'm still seeing 230F or so - which is as hot as I let it go before I shut the AC off.
I installed a Koyo 55mm and plan on really sealing the 1" gaps. I have a 190 (or was that 195F) T-stat, new rad cap, and new coolant. I did all of this less than 1000 miles ago.
The sealing of the radiator should help with the highway temps, but now I need to do something about temps on signal to signal surface street driving.
Anyone know how I can wire an adjustable fan relay? There is a retailer selling one, but they need to know the voltage at several temps. I have the resistance curve. Couldn't that be used to make something?
TIA
I installed a Koyo 55mm and plan on really sealing the 1" gaps. I have a 190 (or was that 195F) T-stat, new rad cap, and new coolant. I did all of this less than 1000 miles ago.
The sealing of the radiator should help with the highway temps, but now I need to do something about temps on signal to signal surface street driving.
Anyone know how I can wire an adjustable fan relay? There is a retailer selling one, but they need to know the voltage at several temps. I have the resistance curve. Couldn't that be used to make something?
TIA
#2
Supporting Vendor
iTrader: (33)
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
there's a ton of standalone cooling fan controllers on the market
this one is a little expensive, but is super simple
http://performanceunlimited.com/cobr...ontroller.html
I would do something along the lines of running it through a SPDT relay to the A/C fan. Would give you a dual stage fan system, with one fan controlled by the ecu at stock settings, but the second fan completely user controllable.
this one is a little expensive, but is super simple
http://performanceunlimited.com/cobr...ontroller.html
I would do something along the lines of running it through a SPDT relay to the A/C fan. Would give you a dual stage fan system, with one fan controlled by the ecu at stock settings, but the second fan completely user controllable.
#3
Junior Member
Thread Starter
iTrader: (1)
Join Date: May 2006
Location: Phoenix, AZ
Posts: 401
Total Cats: -1
Holy crap! Now THAT'S what I'm talking about!
Le me reiterate that I'm an electronic idiot. I can follow directions only if it's color coded so unless someone can point me to cheaper kit, I'll probably buy that.
BTW, I'll probably also end up buying 2/3 Cobra's SPAL and shroud kit as even with the adjustable relay, I don't think the OEM fans can handle Phoenix heat.
Thanks Ben.
Le me reiterate that I'm an electronic idiot. I can follow directions only if it's color coded so unless someone can point me to cheaper kit, I'll probably buy that.
BTW, I'll probably also end up buying 2/3 Cobra's SPAL and shroud kit as even with the adjustable relay, I don't think the OEM fans can handle Phoenix heat.
Thanks Ben.
#4
Junior Member
Thread Starter
iTrader: (1)
Join Date: May 2006
Location: Phoenix, AZ
Posts: 401
Total Cats: -1
I already got an e-mail back from them.
We have no online instructions, but the thermostat simply closes the
circuit to the fan when the set point is reached. That's all there is to it.
circuit to the fan when the set point is reached. That's all there is to it.
#5
Many are running on this little device for Water/Oil Temp reading, also the added Fan controller fucntion
http://pivotjp.com/product/flame-controller-e.html
http://cgi.ebay.com/ebaymotors/Geniu...QQcmdZViewItem
There are cheaper Taiwanese copies avalible also!
http://pivotjp.com/product/flame-controller-e.html
http://cgi.ebay.com/ebaymotors/Geniu...QQcmdZViewItem
There are cheaper Taiwanese copies avalible also!
#6
Supporting Vendor
iTrader: (33)
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
Yeah, that's all that is to it. I see 3 wires, red, black, blue
Let's ***-u-me
Red: System +12V
Black: System Ground
Blue: Fan Trigger Output
The only thing you need to know if the fan trigger wire switches ground OR if it switches +12V. Either way, you run it to a relay (to the relay coil), and when the coil circuit is completed, the relay's solenoid closes and closes the circuit to the cooling fan.
You could hijack the oem cooling fan relay, or add your own. With my dual stage fan mod, I added a SPDT relay to the a/c side fan. That way the fan still comes on with the A/C, but it also will come on at 207F even if the A/C is off. The only difference between my setup and this one is I'm using a thermoswitch with a non adjustable set point to close the circuit, and you would have the adjustable fan controller. The thermoswitch is a perk of having a 1.6.
I'm sure it comes with printed instructions
Let's ***-u-me
Red: System +12V
Black: System Ground
Blue: Fan Trigger Output
The only thing you need to know if the fan trigger wire switches ground OR if it switches +12V. Either way, you run it to a relay (to the relay coil), and when the coil circuit is completed, the relay's solenoid closes and closes the circuit to the cooling fan.
You could hijack the oem cooling fan relay, or add your own. With my dual stage fan mod, I added a SPDT relay to the a/c side fan. That way the fan still comes on with the A/C, but it also will come on at 207F even if the A/C is off. The only difference between my setup and this one is I'm using a thermoswitch with a non adjustable set point to close the circuit, and you would have the adjustable fan controller. The thermoswitch is a perk of having a 1.6.
I'm sure it comes with printed instructions
#7
Junior Member
Thread Starter
iTrader: (1)
Join Date: May 2006
Location: Phoenix, AZ
Posts: 401
Total Cats: -1
I'm hoping for good printed instructions.
It's a universal kit so it should fit anything. And the directions must
be idiot proofed... I wrote them :-)
CV
ChuckERants wrote:
> As long as it will fit my Miata and the directions are idiot-proof. lol
>
be idiot proofed... I wrote them :-)
CV
ChuckERants wrote:
> As long as it will fit my Miata and the directions are idiot-proof. lol
>
#8
Many are running on this little device for Water/Oil Temp reading, also the added Fan controller fucntion
http://pivotjp.com/product/flame-controller-e.html
http://cgi.ebay.com/ebaymotors/Geniu...QQcmdZViewItem
There are cheaper Taiwanese copies avalible also!
http://pivotjp.com/product/flame-controller-e.html
http://cgi.ebay.com/ebaymotors/Geniu...QQcmdZViewItem
There are cheaper Taiwanese copies avalible also!
#10
The kit shoudl include one sensor only, additinal sensor could be purchased! But beware not all sensor are compataible! Its an resistor style, so that it depends on the ohms.
The Taiwanese copy which I am using now cost about USD$90 and additional sensor may be around $12-13 bucks more!
PS: I am not sure if those unit display Degrees Fahrenheit (F)
HKS has it also!
http://www.hksusa.com/images_products/S_2308.jpg
The Taiwanese copy which I am using now cost about USD$90 and additional sensor may be around $12-13 bucks more!
PS: I am not sure if those unit display Degrees Fahrenheit (F)
HKS has it also!
http://www.hksusa.com/images_products/S_2308.jpg
#12
Frank, I am just using to display water for the time being! But will attach another probe when I install my oil cooler soon.
The display can cycle both values or just display one with one push of a button.
If you guys couldn't find any other source to get the unit, I could arrange something for you guys.
The display can cycle both values or just display one with one push of a button.
If you guys couldn't find any other source to get the unit, I could arrange something for you guys.
#13
Supporting Vendor
iTrader: (33)
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
Chuck, check out this neat little controller Rob found
https://www.miataturbo.net/general-miata-chat-9/wiring-high-load-fan-8400/
It would work perfectly as a controller for your A/C side fan.
https://www.miataturbo.net/general-miata-chat-9/wiring-high-load-fan-8400/
It would work perfectly as a controller for your A/C side fan.
#14
Might check out
http://www.dccontrol.com
I am using one on my Lightning and it's much better than some of the others that I have tried.
http://www.dccontrol.com
I am using one on my Lightning and it's much better than some of the others that I have tried.
#15
Junior Member
Thread Starter
iTrader: (1)
Join Date: May 2006
Location: Phoenix, AZ
Posts: 401
Total Cats: -1
Chuck, check out this neat little controller Rob found
https://www.miataturbo.net/showthread.php?t=8400
It would work perfectly as a controller for your A/C side fan.
https://www.miataturbo.net/showthread.php?t=8400
It would work perfectly as a controller for your A/C side fan.
I just ordered the SPAL controller plus the extra wiring for an additional fan.
#17
Junior Member
Thread Starter
iTrader: (1)
Join Date: May 2006
Location: Phoenix, AZ
Posts: 401
Total Cats: -1
My plans are to replace the T-stat from a 195F to a Stant 180F, install the fan controller, and close all of the gaps between the rad, AC condensor and the front nose area.
Then we'll see just how hot/cool it runs.
Then we'll see just how hot/cool it runs.
Thread
Thread Starter
Forum
Replies
Last Post
StratoBlue1109
Miata parts for sale/trade
21
09-30-2018 01:09 PM
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 03:00 PM