Jump to content
SAU Community

Recommended Posts

I got the car with no air con when I bought it, after stripping the engine bay for a respray I sourced all the AC parts to install back in,

Now it has a PWR radiator with a custom shroud and spal thermo, which I just found out, is been powered by the AC fan wiring, so now I have to power source for the AC fan...

I was thinking of using the AC fan cable as per factory, but then I'm stuck with a thermo fan with no power

How do I go about wiring the thermo fan to a relay of some sort and back to the ecu (the thermo currently is been activated by the ecu, not a temperature sensor on the bottom of the radiator)

If anyone has a diagram or can point me in the right direction to get this wired up that would be great

Link to comment
https://www.sau.com.au/forums/topic/462802-r32-gtr-thermo-fan-wiring-question/
Share on other sites

I forget off the top of my head, but i had twins with a thermo switch run through a relay with a switch too.

The thermo switch would activate it automatically while the switch was a fail safe and also useful for the drags etc.

This is a crude way of installing thermos. but was temporary till i got the computer to control them.

If you like i can go and double check the wiring for you. But there are also PLENTY of diagrams with thermo switches and relays all over the net.

Better to get a fan controller and have the fan run at half or 2/3 full speed when the A/C is triggered, then when the water temp goes past x amount, kick off the fan in full speed.

He has 1x massive SPAL fan, which is more than sufficient. Running an OEM front overheat fan then with a massive high flowing Spal fan behind sucking air is kind of counter intuitive

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • That is surely the biggest gathering of Stageas in North America, ever!
    • Remember kids - if you can't afford to buy 2 GTRs......
    • I know people cry at the price of the Getrag 12-14k for a conversion now, but it really is a nice mid point. Not going to get change from 10k on a gearset installed.  $30k++ for sequential.   I know you run the risk of a damaged used one and parts are hard to get but as a street car gearbox its really hard to beat. If you enjoy a more traditional manual, its the choice no question.     
    • Time to decide what’s more import, your power level or your budget because you’re going to struggle to keep both 
    • Our Southern Highlands Cruise is proudly registered with “R U OK?” Day.  Sometimes the best way to check in on your mates is by getting out for a drive together. Sharing a common passion like cars creates the perfect space to chat, connect, and support each other.  A simple “R U OK?” can make all the difference. Let's enjoy the drive, the company, and look out for one another. PLEASE WEAR YELLOW FOR “R U OK?” DAY Sunday 14th September 2025 9:30AM Meeting Crossroads Homemaker Centre 10:00AM Cruise Departure Via Old Hume Hwy 11:45AM Arrival at Mittagong RSL Club Meet Location: Crossroads Homemaker Centre Final Destination: Mittagong RSL Club *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
×
×
  • Create New...