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Adjustment 1 set: Kept the 1-2 shift at 30 mph, and raised the 2-3 shift to 60 mph across all shift modes. Raised the absolute fuel cutoff from 6700 rpm to 7000 rpm. TM adjusted to 25%.
Interestingly, with no change in shift points the 1-2 shift revved to 6600 rpm and hit a new higher calculated hp value.
Previously the 2-3 shift was commanded at 58 but happened at 60 mph. When I moved the commanded mph up to 60 mph it continued to be commanded at 60 mph. More testing needed there to understand.
I observe that the car is actually slowing down during shifts, perhaps due to engine braking in sport mode. I will plan to retest with the transmission in drive, which does not use engine braking, to see if that is advantageous.
Update: I see a source of delay in the 0-60 time — wheelspin after the 1-2 shift is a problem.
Mph | Time |
0 | 0 |
5 | 0.56 |
10 | 0.95 |
15 | 1.31 |
20 | 1.66 |
25 | 1.98 |
30 | 2.17 |
35 | 2.45 |
40 | 3.03 |
45 | 3.08 |
50 | 3.14 |
55 | 3.19 |
60 | 5.03 |
Too much wheel spin after the 1-2 shift at 3 seconds is causing a false mph indicator for a spike to 55 mph after the shift. | |
The 40-55 run in the middle is due to spinning tires. |
Reinstated TM and retested. Didn’t go WOT early enough in the retest to avoid the transmission shifting early 1-2 (shift commanded at 23 mph).