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Old 09-28-2020, 04:31 PM   #744
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Join Date: Jun 2006
Location: Portland, OR

Originally Posted by Acke View Post
The stock e-fan comes with the 24" radiator at least on 940. It can be fitted to the 18" as well, but you have to fit it in the viscous fan housing and the clearence to the waterpump on turbo models is <0,5" because of the intercooler. The wider radiator sits further in the front, you can use the original e-fan housing and you have far greater clearence to the waterpump.
I'm running the stock e-fan with the 18" radiator, controlled by the ecu. I also added a switch for control, since the ECU starts the fan a bit late IMO.
Awesome info! Let me read it back and see if this is right...

18" rad with e-fan has less clearance than the 24" with e-fan between fan and water pump

Is the difference in the radiator design or the chassis/mounting brackets?

Looking at this set of mounting brackets, it has a 3rd unused slot for the lower rubber cushion.
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