Funny you should ask. There's a posting over in the Experiences thread (Model 3 with RWD is all the fast you need!, Post 85 and ff) where we've done some 0-60 mph runs with a G-Tech. The discussion sprouted out of people feeling that Tesla had "nerfed" the performance with a recent software update. One of the cars tested is a 2017 model with an older software update, the other is a 2018 with a very recent update. On the same stretch of road in similar conditions we noticed no difference between 0-60 times at 95% SoC or at 60% SoC. Both of our cars came in right at about 5.1 to 5.2 seconds too (Factory Spec), which is within the error of the G-Tech. Chill mode was around 8 seconds. Still need to do the CHILL measurmeent a bit more carefully.
I need one of those. It seems you're right. I found my favorite stretch of road, just me this time so the car was missing about 150 pounds of extra person, and it was dark so the headlights were on. Otherwise roughly the same conditions as the previous tests. 41 psi showing on the tire pressure all around. 2017 model, early suspension, 18 inch Aeros, 21.9 software.
State of Charge: 142 miles of range, less than 50%.
0-60 mph: 5.4 seconds. Both ways.
FYI. Here is what the Max Power by State of Charge (SoC) looks like for the rest of the lineup. Initial torque doesn't change by SoC, but a few seconds into the performance run where the power levels out is very dependent on SoC...
Cool! By the way, did a sanity check tonight after writing the above post. I charged the car back up to 212 miles of range tonight and reran the tests just now. Indeed faster 0-60 mph times. I again saw some sub 5 second runs. Average with about 60% charge is back around 5.1 seconds. Give or take 0.1 seconds or so.
I'll add it to my list of things to try. Left the G-Tech home today but perhaps I can test that out tonight as well. I never hear any protest from the tires but I wondered about that. Mashing the pedal certainly is a jolting experience!
Very helpful and may explain why some people feel that certain firmware releases decrease or increase acceleration.... not the firmware just your battery charge state when you first drive after uploading the new firmware