Sounds about right.

Under high engagement it won't shut off completely around 202 it'll go to low mode

 

Thanks guys.
I'll probably end up tweaking it to my liking, but I figured I would set a "baseline" with a thermometer and pot of water, and work from there.

 

Temps with Fan clutch (i posted more precise ones on one of these threads):

From the top of my head

When driving at 55+mph Temp = 177-181

after you stop (exit highway) temps will stay put for about 20 seconds and then begin to rise to about 185, it'll hold at 188 to about 191 (at this point the fan clutch is engaged)

You begin to drive it'll fluctuate from 191 to 188 then slowly drop to 185 and beging to tumble more depending on how cold it may be outside.

heavy stop and go traffic

car maintains temperature at 191-195

under extreme driving (auto cross) temps can spike to 201-205 if you continue round after round you WILL need a cool down pass, or just let the car sit in idle for at least 5 minutes.

the fan clutch does an incredible job of keep temps at a consistent level. Only problem is the more it engages the more you'll feel the strain on the engine.

So with those numbers I came to the conclusion that I originally wanted my e-fans to turn on at 188. Problem with this is the fans would kick on almost all the time during stop and go traffic. Instead, i decided i wanted to set the fans to 200 so it'll give the radiator more time to do its job instead of forcing the fans to assist.

In the event I want to go tracking I can bring the setting a bit lower so I don't put much of a strain on the car with heat.

regardless, I am very pleased with the efan setup.

 

^Thanks

The setup I'm using has a dual speed fan, so I'm thinking about wiring a switch to toggle speeds, and during intense driving (autoX) switch it to the higher speed.

 

damn sweet, what controller is this?

 

^That's the sad part, I don't have a dual speed controller, just a dual speed fan :/

I thought about wiring up a 2nd controller so it would be dual-speed, but I figure I'll just put in a manual hi/lo switch.

 

Iirc daveo used one that does both functions

 

Found DaveO's reply in a thread with all the info you may need for a variable speed system.

https://g35driver.com/forums/1070406-post8.html

 

DaveO said the best/easiest way to set it up was using the wiring from the stock AC fan. That way if you are running AC it will kick one fan on low, and the other will kick on for high if it needs to.

 

This is how I plan to wire mine:




Sorry it's hand-drawn, I didn't feel like finding a schematic drafting program

 

Its a great idea, but I. Personally did not want to engage fans so late. 203 a low kick is somewhat up there and 211 is just cutting it close.


At 215 the gauge begins to move at least it does in my sedan.