Soarin Posted December 23, 2015 Share Posted December 23, 2015 I've decided to go with a Mishimoto aluminium radiator, specifically model #MMRAD-STI-08 with an external transmission cooler for the 5EAT in my 06 LGT. Reviews look good and it'll fit with the stock fans. I'm looking at B&M SuperCoolers because of the bypass flow for cold temperatures. In Reno it can swing from around 5 at the coldest in the winter to about 105 at the highest in the summer. I'm open to suggestions for trans coolers. I've read Hayden is a great name as well. Thanks in advance for all info posted and happy holidays. Link to comment Share on other sites More sharing options...
quick4dr Posted December 26, 2015 Share Posted December 26, 2015 only way to do it, is as Climber D outline a while back. External cooler from Tru cool, plumbed with a Derale thermostat to keep temperatures perfect. Over cooling the 5eat makes it run like shit, and over heating well she wont last long. I run a Tru-Cool 4451 with Derale and my trans is happy, up to temp quick and doesn't over heat. Link to comment Share on other sites More sharing options...
LeoOtrue Posted August 4, 2020 Share Posted August 4, 2020 (edited) If your engine is stock I don't see a need to install a cooling system of your transmission. I didn't hear from somebody that the seat's gearbox can be overheated. I know cases when it was overheating but the engine was stage 3 and of course, it's very high pressure on the gearbox. I added a transmission cooler on the gearbox of my Golf 7 R that is 450hp)) In this case, of course, the cooler is indispensable. I installed it and I felt the result from the first ride and it deserves the money that I spent. Edited August 6, 2020 by LeoOtrue Link to comment Share on other sites More sharing options...
amm203 Posted August 4, 2020 Share Posted August 4, 2020 Running something similar to quick4dr. Hayden 676 with a Derale. Transmission is running great after almost 25k miles on a built motor at 19PSI (~130K total miles on the 5EAT). Link to comment Share on other sites More sharing options...
cal71919 Posted August 7, 2020 Share Posted August 7, 2020 I went with the Mishimoto cooler w/fan and the Derale thermostat. Link to comment Share on other sites More sharing options...
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