Hey buddy, I think I recall reading in another thread that you run your car frequently at the road course using the 6r80. How many track miles do you have and did your transmission shifting behavior change on street driving? I heavily track my 6r80 as well and now i seem to get weird shifting from 3rd to 4th gear at around 1500 to 2k rpm. Seems like it's got a torque converter lockup hesitation.
Yes, you're right! South East Asia. Philippines to be exact. We have 100 degree weather all year round. My car has seen about 24 track days. 4 ten minute sessions each. I really hope the trans isn't broken already. Been hearing so many 800whp guys beating on a 6r80 at the dragstrip with no problems. Mine is just 400whp and only 15k miles in total. Bought in May 2015. Are you tuned? Do you suggest OEM Mercon LV or something like Redline D6 synthetic ATF? Every 6 month interval maybe?
- which stresses the trans, but won't produce a sustained heat soak. Torque converters will heat up quickly at the strip and I think that would be the failure point for the drag racers.
I really took that photo in a forest. Lol. Thanks for all the info! Do you also change out your diff fluid every now and then? My car is 3 yrs old but I have not changed diff fluid...I only changed ATF. What is involved with installation of the Mishimoto tranny cooler? Does the radiator have to be removed?Yes, figured you were somewhere tropical. Your photo looks like it was taken in a rain forest!!
I'm not tuned, all stock on the engine/trans. Just chassis, suspension, and cooling upgrades.
I'm no engineer, but relatively short bursts up to a high temp probably won't hurt the trans. Maybe someone else can comment on this too.
It goes into limp mode at 250F which cools it down quick. For me, I've already changed it once, just as insurance at the end of this past season. If the Mishimoto trans cooler keeps it at 240F or below, I'll change it less frequently. They say their cooler is supposed to drop the temp 18F, which will be great.
From what I've learned, this is basically the same trans they use on the F150's. I'm hoping that it can handle the abuse on a road course - we'll see! Persistent heat is the enemy here. The drag strip guys live life a quarter mile at a time -
I used the factory fill Mercon LV.
