ET, invert, weather, gearing, launch, and a slip log — six stations instead of one calculator. Weather correction is an NA gasoline estimate. Not a dial-in.
Race weight and wheel power to 60-ft, 1/8, and 1/4. Same Hale-style k and c as invert.
Inputs
Wheel = crank × (1 − 15%). Loss is visible because ET is a wheel-power estimate.
Results
Estimated wheel power from a 1/4 ET or trap. Same k/c. Traction-limited slips read high.
Inputs
Results
Station weather to density altitude and an NA standard-day correction.
Inputs
Results
Gear and RPM at 60 / 330 / 660 / 1320 from the predicted speeds. Grown diameter on the drive tire.
Inputs
Marks
| Mark | Speed (km/h) | Gear | RPM |
|---|---|---|---|
| 60 ft | 53.7 | 1 | 6794 |
| 330 ft | 72.3 | 2 | 5151 |
| 660 ft | 94.9 | 2 | 6766 |
| 1320 ft | 152.1 | 4 | 5414 |
Finish gear at trap: 4 @ 5414 rpm · converter slip 8% · growth 1.000
RPM and speed at marks
Rigid-body weight transfer at launch. Motorcycle: front under 5% of static is a wheelie warning.
Inputs
Results
Saved in this browser only. Nothing is uploaded.
Log a slip
Saved slips
No slips yet. Save one after a pass, or save the predictor as a baseline.