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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > AT Transmission cooler Proposal. :) (diagram inside)



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      11-04-2012, 11:12 AM   #1
sammy_0559
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Cool AT Transmission cooler Proposal. :) (diagram inside)

We all know the lovely status of my car right now just chillin at the shop

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Im pretty sure this can/will work please tell me otherwise and explain reasons to why not. this is just a proposal. i might test it out on my car when i get my turbos and when its back up and running. but in the meantime just wanted to throw this out there.
Enjoy.

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      11-04-2012, 10:59 PM   #2
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Pretty good idea, it will definitely work. One suggestion, maybe put the aftermarket core after the factory one. I feel like since the factory one has coolant running through it, it might warm it back up.
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      11-04-2012, 11:03 PM   #3
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Interesting concept, so incredibly simple, too. I feel like theres a hitch...
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      11-04-2012, 11:55 PM   #4
sammy_0559
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Quote:
Originally Posted by BoostAddict View Post
Pretty good idea, it will definitely work. One suggestion, maybe put the aftermarket core after the factory one. I feel like since the factory one has coolant running through it, it might warm it back up.
hmm yeah that makes more sense!! lol maybe after the heat exchanger i dunno why i didnt think of that.
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Originally Posted by Eric335 View Post
Interesting concept, so incredibly simple, too. I feel like theres a hitch...
i know right! there might be but one way to find out!
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      11-05-2012, 01:55 AM   #5
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Quote:
Originally Posted by sammy_0559 View Post
We all know the lovely status of my car right now just chillin at the shop

Attachment 776726

Im pretty sure this can/will work please tell me otherwise and explain reasons to why not. this is just a proposal. i might test it out on my car when i get my turbos and when its back up and running. but in the meantime just wanted to throw this out there.
Enjoy.

Attachment 776727
I have already done this mod and the only reason I have not shown it or reported about it is my car is in the shop with an electrical problem. But the mod works well. I need more data before I can report definitive results here but my initially review is that it works flawlessly. Will post results soon...I hope.

Mine is after the heat exchanger which mimics the M3 setup. I also have a T-stat that opens at 180F to dovert flow to or away from the cooler when temps are over or under 180F. This allows for appropriate warming of the tranny fluid before the accesory cooler come into play.
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      11-05-2012, 01:59 AM   #6
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Quote:
Originally Posted by N54_Fan View Post
I have already done this mod and the only reason I have not shown it or reported about it is my car is in the shop with an electrical problem. But the mod works well. I need more data before I can report definitive results here but my initially review is that it works flawlessly. Will post results soon...I hope.

Mine is after the heat exchanger which mimics the M3 setup. I also have a T-stat that opens at 180F to dovert flow to or away from the cooler when temps are over or under 180F. This allows for appropriate warming of the tranny fluid before the accesory cooler come into play.
I noticed you edited a bunch of posts in a thread about this. Was wondering whatever happened. If you don't mind my asking, is the problem related to the AT cooling?
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      11-05-2012, 02:03 AM   #7
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Quote:
Originally Posted by skinrock View Post
I noticed you edited a bunch of posts in a thread about this. Was wondering whatever happened. If you don't mind my asking, is the problem related to the AT cooling?
No it is NOT related to the cooler. you have pm.
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      11-05-2012, 02:32 AM   #8
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Could i get a part list and sources with possible instructions?

Last edited by AYF80; 11-06-2012 at 01:52 AM.
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      11-05-2012, 08:11 AM   #9
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Quote:
Originally Posted by N54_Fan View Post
I have already done this mod and the only reason I have not shown it or reported about it is my car is in the shop with an electrical problem. But the mod works well. I need more data before I can report definitive results here but my initially review is that it works flawlessly. Will post results soon...I hope.

Mine is after the heat exchanger which mimics the M3 setup. I also have a T-stat that opens at 180F to dovert flow to or away from the cooler when temps are over or under 180F. This allows for appropriate warming of the tranny fluid before the accesory cooler come into play.
SHOW it lol so im guessin you took pics along the way! im glad someone has done it!
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      11-05-2012, 08:31 AM   #10
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Quote:
Originally Posted by sammy_0559 View Post
SHOW it lol so im guessin you took pics along the way! im glad someone has done it!
yes please show it ! Also parts list would be great!
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      11-05-2012, 10:59 AM   #11
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Subscribed!! Very interested in this update.
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      11-05-2012, 04:10 PM   #12
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My car is in the shop with an apparent electrical gremlin that is difficult to diagnose... but after 3 weeks it looks like we may have found the cuplrit. Unfortunately this electrical problem came about right after I got the cooler installed. This electrical problem is NOT RELATED to the AT cooler and a completely separate issue as the temp sensors are not even wired in yet. I was able to prove with an IR temp sensor that the outlet temps are 20F lower than the inlet temps of the accessory cooler. However this is only of the hoses so I would assume the actual fluid temps are more substantial. I will post pics and all info I can as soon as I get my car back and get some realtime data with the temp sensors wired into my gauge.

I expect to get the car back this week and then wire in the gauge and sensors this weekend. So hopefully by this weekend I can post all the juicy details.
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      11-05-2012, 04:29 PM   #13
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subscribed! I hope this works out because the stock AT tranny cooler is a joke It looks simple, yet affective good work lil Sammy
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      11-05-2012, 06:09 PM   #14
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Very interested, subscribed.
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      08-12-2013, 04:30 AM   #15
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Someone did the upgrade?
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