Engine Heat with AC On Options

[HardHead93]

I have the intercooler fan on a kit that turns on the intercooler fan when engine coolant temps reach 200 and turn off at 185. The lowest temp kit I could find was 150 degrees which is still to high for me to put it into the intake. That is why I am planning on wiring it into the standalone ECU. Megaquirt has a function where you can have a circuit turn on/off when certain user defined conditions are met. Do you know of where I can get an IAT switch that is rated for 100 degrees because that would be idea of when the fan should turn on? If not the standalone is my only option.

[Bitter]

https://www.aliexpress.com/item/55-120-Degr...12-0333ba6b5204

https://www.aliexpress.com/item/DC-AC-12V-2...12-0333ba6b5204

One of those might work, look funky but work.

[HardHead93]

I got my new gauge installed today. Before I had a gauge that only measured engine water temp. I switched it out for one that I can measure engine water temp and intercooler water temp. The top number is engine temp and the bottom in the intercooler. Here is a picture of it in action.

My hope is that this gauge will alert me to any problems with the intercooler system so I can let off the gas and not boost the motor with high intake temps. The ECU will retard timing if it see high intake temps but it can only do so much if the water pump were to stop working or I had a water leak.

I took the car for a drive with the new gauge and I was very surprised at how much the intercooler system heat soaks at stop. The water temps ranged from 85 to 95 degrees when I was driving. As soon as I was idling the water temps would climb to 115 in a matter of minutes. Then they would drop quickly as soon as I started moving again. I really need to get my intercooler fan on a switch that turns on with a certain intake temp.

This post has been edited by HardHead93: Aug 6, 2017 - 12:43 AM

[Bitter]

And of course some nozzles to mist water at the heat exchanger WRC style.