Drop in water temp with A/C on

FC Zach · 01-21-2013, 04:28 PM

Is your heat on, thinking that maybe cold air is being pushed through the heater core?

Pete_89T2 · 01-21-2013, 07:24 PM

No experience with FD's, but on a stock FC this isn't too unusual if the ambient temps are not all that high (70's~80F ambient). Reason is on the FC T2's, we have a mechanical fan plus an auxilliary e-fan that kicks on whenever the A/C is turned on. So if you turn on the A/C, and it isn't all that hot outside, the aux. e-fan kicks on regardless pulling more cool air thru the rad. At those ambient temps, the the A/C isn't working all that hard to do much cooling (condensor doesn't get too hot), so the net effect of that extra airflow thru the radiator is lower water temps.

I know the FD uses an e-fan as its main fan, but does it have an aux. e-fan like the FC that comes on with the A/C?

01-21-2013, 04:28 PM	#1
FC Zach RCC Loves Me Not You Join Date: Mar 2008 Location: Eagleville, TN Posts: 2,267 Rep Power: 20	Is your heat on, thinking that maybe cold air is being pushed through the heater core? __________________ 1993 Yamaha GTS1000 1992 Celica Turbo AllTrac 1987 RX7 Sport 1979 Yamaha G1, KM24 powered 1975 Dolmar KMS4

01-21-2013, 07:24 PM	#2
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	No experience with FD's, but on a stock FC this isn't too unusual if the ambient temps are not all that high (70's~80F ambient). Reason is on the FC T2's, we have a mechanical fan plus an auxilliary e-fan that kicks on whenever the A/C is turned on. So if you turn on the A/C, and it isn't all that hot outside, the aux. e-fan kicks on regardless pulling more cool air thru the rad. At those ambient temps, the the A/C isn't working all that hard to do much cooling (condensor doesn't get too hot), so the net effect of that extra airflow thru the radiator is lower water temps. I know the FD uses an e-fan as its main fan, but does it have an aux. e-fan like the FC that comes on with the A/C?