mattlqx
Mustangless
I'm at Chuckwalla with NASA with my Tech package GT350. Car is bone stock except for UPR catch cans. Ambient temperatures are around 80°F today.
Transmission temperature is the bottleneck. Once it hits 280°F, the car starts limiting throttle significantly to protect itself. No warnings or lights, just reduced power. It's pretty smooth, it doesn't stutter or jerk. I reach this point in about 5 laps of this 2.3 mile track. It's pretty technical; lots of on it, maintenance throttle, on it, brake zone type stuff. Average lap time (for non-race groups anyway) is low 2 minutes.
Engine oil temps hold fine at 250°F after a lap or two. While I can't get a direct reading on the diff fluid, using an infrared thermometer, the casing reads 180°F consistently after coming off track, so that seems fine as well.
This is my experience after 3 sessions. The last session I stuck in 4th for most of the time rather than shifting between 3 and 4. It yielded mostly the same temperatures.
Kinda disappointing but while the trans isn't overheated, it's very fun. Loads of grip, loads of stopping power. Beautiful noise.
The spendy option to add the cooler would be buying the transmission part number w/ cooler pump (FR3Z-7003-D) and just doing a swap. Looks like it'd run around $4500 w/ $1000 core. I think a competent transmission shop should be able to do it for a quarter of that, but it's something I'll have to investigate in the near future.
I don't believe the diff temperature would be a problem in 20 minute sessions if I was out there the whole time. Maybe if ambient was closer to 100°F. But everything I saw from the diff was very consistent temperature wise and no smell of fluid.
Transmission temperature is the bottleneck. Once it hits 280°F, the car starts limiting throttle significantly to protect itself. No warnings or lights, just reduced power. It's pretty smooth, it doesn't stutter or jerk. I reach this point in about 5 laps of this 2.3 mile track. It's pretty technical; lots of on it, maintenance throttle, on it, brake zone type stuff. Average lap time (for non-race groups anyway) is low 2 minutes.
Engine oil temps hold fine at 250°F after a lap or two. While I can't get a direct reading on the diff fluid, using an infrared thermometer, the casing reads 180°F consistently after coming off track, so that seems fine as well.
This is my experience after 3 sessions. The last session I stuck in 4th for most of the time rather than shifting between 3 and 4. It yielded mostly the same temperatures.
Kinda disappointing but while the trans isn't overheated, it's very fun. Loads of grip, loads of stopping power. Beautiful noise.
The spendy option to add the cooler would be buying the transmission part number w/ cooler pump (FR3Z-7003-D) and just doing a swap. Looks like it'd run around $4500 w/ $1000 core. I think a competent transmission shop should be able to do it for a quarter of that, but it's something I'll have to investigate in the near future.
I don't believe the diff temperature would be a problem in 20 minute sessions if I was out there the whole time. Maybe if ambient was closer to 100°F. But everything I saw from the diff was very consistent temperature wise and no smell of fluid.
FP is already working on the trans cooler so hopefully they are reading this and make this a high priority. Although I haven't confirmed this I'm sure their kit will include a pump. What I have confirmed is the kit will include many of the same parts as the R/TP kit so expect OEM fitment and quality from the kit.
