AnnDee4444
Well-Known Member
FWIW: The 3.6 guys can probably swap to the 850W fan (used in the 2.0 & 3.6 Max Tow JT)
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Has anyone actually done this yet? If so, send me a link, I may wanna do this.......FWIW: The 3.6 guys can probably swap to the 850W fan (used in the 2.0 & 3.6 Max Tow JT)
The some of the aftermarket forced induction makers add a very thick air-air intercooler in front. A modern low profile fan shouldn't be a problem compared to how much space those fat air-air intercoolers and their hoses need.For practicality sake, I'm not sure how much room there is for another fan in that stack of cooler stuff that's already in there.
It's good to have the option. I rather not take control from one hand of FCA and give it to another FCA hand.FWIW: The 3.6 guys can probably swap to the 850W fan (used in the 2.0 & 3.6 Max Tow JT)
The 83% increase in fluid capacity amounts to an extra 0.23 quarts.
The other two big numbers;
seem impressive too, but what about the actual performance?
- 93% increase in external tube area over stock transmission cooler
- 195% increase in internal fin surface area for comprehensive cooling in even the harshest conditions
How much cooler does the transmission run with the Mishimoto aftermarket Wrangler JL transmission cooler installed?
Thank you.
Hey both,Also I'd like to know if it's better than putting a smaller pusher fan, considering the work and potential warranty issues involved in replacing. The temps are fine when moving so the cooling is needed when stationary which I don't think is best solved by a bigger heat exchanger?
Thanks for the reply Steve. I'm still not sure if a similar effect can be achieved by adding an extra pusher fan to the factory cooler.Hey both,
If you read through this post, you'll find our testing results: https://www.mishimoto.com/engineering/2020/08/jeep-wrangler-transmission-cooler-2018-rd-pt3/
To summarize, we bench test our coolers vs. the stock unit so that we can have a direct comparison between the two, without having to worry about outside factors like ambient air temp, airflow, or varying load due to road conditions or traffic. In our bench testing, we found that our cooler reduced inlet and outlet temps by about 10 degrees over the stock cooler. Our cooler also flows better than the stock unit, which means it can cool the fluid faster.
@rubileon a bigger cooler will have an effect on temperature during low speed/stopped conditions because of two things: greater thermal mass and greater surface area.
The Mishimoto cooler overall has more mass than the stock unit, which can absorb more heat from the fluid without any airflow. Think of it like a heat sink on a diff cover or a computer CPU. Adding those fins adds mass to the diff cover and also adds surface area.
The extra surface area also means that there's more material in contact with the air, which transfers heat better. It also means that there's more surface area in contact with the air that the fans move, so it's essentially like increasing the flow of the fan.
Hope that helps answer your questions!
The pre-sale for this trans cooler has ended, but if anybody would still like to order, please shoot me a PM and I'll see what I can do for pricing.
Thanks!
-Steve
The only thing that is missing from this equation is the ambient temperature. If it was 30Ā° outside, then these results aren't as impressive than if it was 120Ā°.
Maybe the Tazer guys can solve that?If only people hadn't cried so much about the cooling fan noise that Jeep dialed it down, way down...
I keep hoping one of the aftermarket guys (Tazer, Superchips, etc) come out with a way to override the automatic fan programming, i live where it's insanely hot, If I could flip a switch and have it run at 100% it'd probably stay that way all spring, summer, and fall.Maybe the Tazer guys can solve that?