ifrythings
Full Access Member
The stock programming on the 6.4 takes into account coolant temp, oil temp, ac pressure, fuel temp and trans temp. It also tries to turn on the fan partly depending on demand, I haven’t gotten the clutch on mine to work in between on/off. I can rev up to 3k+ and the fan will be turning 200-500rpm when unlocked, when locked up it runs pretty much engine rpm.
I’m not noticing any surging with mine but I’m also running it in on/off mode instead of pwm like the stock programming.
I’m not noticing any surging with mine but I’m also running it in on/off mode instead of pwm like the stock programming.