anyone VBOX a P3D on 19.8.3 yet? man it feels faster

[StellarRat]

My LR RWD feels a little faster. I honestly don't think people could reliably tell the difference with just their senses for anything less than about a 10% increase. I think you have to measure with real instruments to know for sure there is a difference.

 

[SleeperService]

Alright, finally some numbers with the 2019.8.3 update with the same vehicle configuration as last time and a ~68°F ambient temp:
0-60 with 1' rollout: 3.11 seconds
0-60 without rollout: 3.28 seconds
60-80: 2.00 seconds (The best I've gotten so far on v2019.8.3 was 1.99 seconds, but that was on a different run with a slightly slower 0-60. The car generally runs this test at 2.00-2.05 seconds before & after the update, so I'm not counting this as a real improvement.)

Like last time, screenshots are on Twitter: Alex Venz on Twitter

It's weird that the car did about 0.02 seconds better than before at each step of the run in 10mph breakout that Dragy provides--suggests a more even boost than some are seeing?

All times recorded with the Dragy GPS unit.

This is pretty consistent with my accelerometer (400 hz) calculated numbers @ 90% SOC.

0-60 with 1' rollout: 3.093 seconds (3.256 before)
0-60 w/o rollout: 3.380 seconds (3.547 before)
60-80: 1.886 seconds (2.041 before)

At some point I'd like to go to a drag strip and validate my method, but I'm quite happy with the improvement and I can definitely feel it seat of the pants.

 

[Mayhem]

After and before: (8.5 vs 5.15)

Seems interesting that I was 0.04s faster after the update (which is nowhere near 5% performance increase -- I would have expected at least 1/10th sec faster) and my 0-10mph shortened by 0.04s. There are variations in different points of the run as below. Same strip, same tires, 2° (F) temp difference, same driver weight, same SOC 95%

00-10: 0.48 -> 0.44 (-0.04s)
10-20: 0.54 -> 0.55 (+0.01s)
20-30: 0.55 -> 0.53 (-0.02s)
30-40: 0.53 -> 0.54 (+0.01)
40-50: 0.60 -> 0.59 (-0.01)
50-60: 0.72 -> 0.73 (+0.01)

Hmmm.......

 

[robski]

5% increase was in power, not decrease in 0-60 times. In other words if you have a 100HP car that runs 0-60 in 10 seconds, adding another 100HP (200HP Total) doesn't mean it'll now go 0-60 in 5 seconds.

 

[Mayhem]

5% increase was in power, not decrease in 0-60 times. In other words if you have a 100HP car that runs 0-60 in 10 seconds, adding another 100HP (200HP Total) doesn't mean it'll now go 0-60 in 5 seconds.

Comments like these are exactly why I specified what I expected for a "5% increase". Please read my post again.

 

[robski]

Comments like these are exactly why I specified what I expected for a "5% increase". Please read my post again.

I didn't quote you so my comment wasn't directed at you, but I followed your advice and re-read your comment. My conclusion now is that my comment is definitely targeted for you. I think you need to re-read what you wrote.

Seems interesting that I was 0.04s faster after the update (which is nowhere near 5% performance increase -- I would have expected at least 1/10th sec faster)

You said .04s is nowhere near the 5% performance increase and you expected at least 1/10th. How would you even conclude that? Anyways, not really looking for an answer. Just my 2c on the comment.

 

[Mayhem]

You said .04s is nowhere near the 5% performance increase and you expected at least 1/10th. How would you even conclude that? Anyways, not really looking for an answer. Just my 2c on the comment.

I didn't have to conclude that -- Tesla said that the upgrade gave Model 3 Performance a 0.1sec boost. From 3.3->3.2s