More testing. This is a dual graph, one on the top which is rpm (white) and transmission fluid temp (red). With the transmission up to temperature, I accelerate to redline and then slow down to around 10-15mph before coming to a complete stop and idling with no airflow.
The bottom graph mirrors the top, same point in time for each position on the graphed line. The clutch pack temp (yellow) is telling. It’s where a majority of the heat is generated and it take some time to transfer from the clutch packs to the ATF fluid. There’s a natural latency in that heat transfer as well as with the sensors reading the temperatures.
What you notice is the fluid temperature rises a few degrees, maxes out at 80C and then cools down to 79, 78C while the car is idling. The green line is vehicle speed on the bottom graph. That’s the fans kicking in and keeping the fluid temperatures reasonable and dropping the clutch pack temp as well. Without the new cooler, the fluid temps would be at least 100 degrees Celsius (212F) if not higher. I’ve seen them much higher with the OEM cooler. IMO, it’s really the weak link and I honestly wonder why a better system wasn’t designed.
With improved cooling the ECU will always run at a lower temperature than it would with the OEM cooler. As computers get hotter, they slow down and aren’t as efficient in their operation. Same with the one inside the mechatronic.
Had I not come to a stop and continued on, the fluid temps would have stayed around 70 degrees Celsius. And yes, it’s hot out again today. Ambient temps were about 98F, or 37C. I have two more days of hot weather for testing as it looks like a big front is coming through with much needed rain.
A little video teaser, a launch with JHM stage 2 plus ripping through the hills/canyons in Mexico. I shot a ton of video on Monday along with logging data on the transmission cooler.
[video=youtube_share;DafaCWO7-YE]https://youtu.be/DafaCWO7-YE[/video]
A little video teaser, a launch with JHM stage 2 plus ripping through the hills/canyons in Mexico. I shot a ton of video on Monday along with logging data on the transmission cooler.
[video=youtube_share;DafaCWO7-YE]https://youtu.be/DafaCWO7-YE[/video]