I have e-fans too, and I still have my shroud. It directs the flow of air a little better. Keeps the air directed to the radiator... just a thought.

 

I don't really see how it would help. The fans pull air through the front of the truck to cool the tranny cooler/ac condensor/radiator. The flow of air across the motor in the engine bay has little to do with engine temps IMO. It's all about getting air through the radiator, which with E-fans against the radiator, you no longer need the shroud.

 

you do what works for you.....

 

My point was the trans will cease making heat when not running. While it will in fact make heat running even in neutral or park, This I have observed on the dyno. With little air flow just setting there spinning yu can in a relativley short period of time reach temps of 160 as I have noted. Now it would be true if you have been running for instance at the track and were above engine temp with the trans idling would get you down to that just running at idle park , And running with just a cooler and no pass through the radiator you would cool down even more if you have good air flow. But perhaps I miss understood I thought what was ask was after driving the truck and when done ready to park should you let it set a idle a bit before turning off to cool down and My answer to that is no,
Of course IMO if you not getting over 230 degrees to start with I wouldn't worry about either and if you are you need more cooler anyway.

 

Just a bit of personal experience. My temps will rise as high as 180* around town when I just put the column shifter in 3rd and have it never unlock. The fastest way I've been able to cool it down though is to lock the converter in 4th and just cruise around.

 

I'm with Scott on this one. i see zero reason to keep the shroud on, it just gets in the way when working under the hood. the purpose of it from the factory was not to "direct airflow" but more to ensure the air is pulled from the right place since the fan was positioned away from the radiator. if it was a pusher fan (which would make no sense) then i agree that a shroud would be necessary. however, with the e-fans directly against the radiator, there is no place other than the radiator for them to pull air from.

 

the best way to cool it down is turn off the engine. I don't think any harm comes to putting it away wet, so to speak, or any benefit to cooling it down before shutoff.

 

On the contrary for me. My temps take much longer to lower with it turned off than if I were traveling 70 miles an hour turning 1800 rpms with the converter locked.

 

Sure, but if you are at the end of your journey just turn it off, there's no need to drive around JUST to cool it down afaik.

 

Depends on how hot the temps are and what kinda conditions you are in..
A cooler thermostat sure keeps the temps down if all you have it is the radiator cooling only.