I have a PFC and a commander. Is the water temp guage accurate enough that I dont need to buy another one? It seems that it keeps fairly good real time numbers. Thanks for any help

 

the guage is as good as the sensor its connected to.

 

YES

 

I would go by what he says.

 

I've had the PFC and a Defi water temp gauge and they are always within a couple degrees of each other. So yeah, it's good enough.

 

THanks guys. What would be the proper operating temp in celcius? 85-90 degress?

 

Depends on your car. Mine runs between 84-87 Celsius. On the hottest day so far in Gainesville FL at 97, and running in town stop go traffic I hit 87. Highway 84.

Some FMIC guys I know have temps at 94-99.

 

keep in mind 90C is only 194F, i don't think the thermostat opens fully until like 205 and fans on full till past that.

 

On a stock FD, the thermostat begins opening at 180F (82 C). The fans don't turn on until 221F (105 C). For long term longevity, I would prefer to have temps in the 190-200 F range (87-93 C), but with a stock fan control set-up, you WILL see up to 221 in stop-and-go traffic.

 

Side note: Fan mods does a great job controlling temps in stop/go traffic.

 

My temps are around 85-95 celcius on the greddy gauge and the PFC. I run Evans coolant though, it tends to run a bit hotter.

 

I like to keep my temps around 85-90.
Mod switch mod rules.

 

Same here, despite the F to C conversion the PowerFC and my Defi gauge are always consistent.