Craig Cavies Thermofan switch

[OzGuvnor]

Help,
Putting in a new larger radiator and I need to replace one of the original fans due to clearance issues. Was going to use Craig Cavies DCSL14 which is slimmer by quite a bit.

They recommend using a switch (either mechanical or electrical) to control the fans. I didn't check to see if the stock fans on NA8 run always, or already have a switch that activates based on temp. Which is it?

Also, is a switch worth putting in - assuming the stock wiring has none?

Thanks.
OzGuvnor.

[smy0003]

Stock fans have two wires each (two fans for cats with radiators and one for cars that don't).
Just connect to new fans to the existing wires.

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[beavis]

All NA and NB mx5s have 1 fan that is ecu controlled by a temp sensor.
Cars with AirCon have a second fan that turns on when AC is on.

You can simply splice your new fan(s) into the stock fan wiring.

[OzGuvnor]

Great, thanks for the help.

[smy0003]

My post should read that cars with AC have two fans and cars that don't have one.
All cars should have radiators...

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[OzGuvnor]

Understood. Also my subject should read Craig Davies not 'Cavies'. Small phone, fat fingers.

I have AC and both fans are different models.

[rascal]

Also my subject should read Craig Davies not 'Cavies'. Small phone, fat fingers.

Actually it's Davies Craig.

[OzGuvnor]

That too!

[zossy1]

All NA and NB mx5s have 1 fan that is ecu controlled by a temp sensor.

I believe NA6s have a separate thermostat fan switch in the thermostat housing.