Product Review:
Racing Technology AP-22
How well does it work?
The AP-22 works very well. Here is an example of the data available
from a single timed interval run, from 0-60 mph:
| MPH |
Seconds |
G's |
Feet |
HP |
| 10.0 |
1.04 |
0.51 |
6 |
57 |
| 20.0 |
1.95 |
0.46 |
26 |
104 |
| 30.0 |
2.96 |
0.46 |
63 |
157 |
| 40.0 |
3.97 |
0.42 |
115 |
193 |
| 50.0 |
5.32 |
0.32 |
205 |
189 |
| 60.0 |
6.94 |
0.27 |
336 |
193 |
| |
|
|
|
|
| Peak HP: |
5.23 |
|
198 |
205 |
| Peak G's: |
1.54 |
0.52 |
15 |
|
and remember -- this is just data from a single mode of the
several modes available.
Consistent? Here is an example of 2 test runs done
back to back over the same course on the same night. In these runs I
was trying to measure acceleration with no wheel spin whatsoever:
| MPH |
Run 1 Time |
Run 2 Time |
G's Run 1 |
G's Run 2 |
| 10 |
1.23 |
1.13 |
.45 |
.53 |
| 20 |
2.17 |
2.01 |
.45 |
.48 |
| 30 |
3.11 |
2.95 |
.49 |
.49 |
| 40 |
4.08 |
3.92 |
.43 |
.43 |
| 50 |
5.36 |
5.22 |
.37 |
.37 |
| 60 |
6.84 |
6.71 |
.30 |
.29 |
| Peak HP |
221 HP |
217 HP |
.50 |
.54 |
Note the highlighted G force during the core run from 30-60
mph. This is what we are hoping for -- consistent data. Now, if
I were to test a modification (mod) on the same night same course, and I got
a different run of G-data, I might begin to feel that the modification had
an effect on the acceleration of the car.
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