I am thinking something similar to the Pedder’s Suspension test of the G8 here:
wherein they show both lean angle of the vehicle while cornering and measure g-force attained on a constant radius skidpad. Those seem to be ideal ways to measure performance of the current suspension setup on the Cadillac CTS, then apply mods, and then retest to determine effect.
Also using a tire temperature gauge seems interesting, although only in test consistency.
I have been doing additional customizations with Trackvision to make a ‘standard’ acceleration test video overlay to use when doing acceleration tests for Caddyinfo.
This video shows a 0-80 mph data table added to the previous acceleration video:
Caddyinfo Trackvision Time Table from Bruce Nunnally on Vimeo.
The individual test event title will also be added in a red font just above the wood dash background for each test run.
Video overlay with Trackvision of RaceLogic PerformanceBox info. Flip Ultra video cam footage held by a Cruisecam headrest camera mount.
This is a video trial using TrackVision software to tag data logged from the RaceLogic Performancebox onto a 0-60 acceleration test video:
Caddyinfo Video Test setup Test from Bruce Nunnally on Vimeo.
Here is the data table:
| Speed(mph) | Time(s) | w/Rollout .99ft=.27s | Dist(f) |
| 10 | 0.68 | 0.41 | 5.3 |
| 20 | 1.45 | 1.18 | 22.5 |
| 30 | 2.40 | 2.13 | 57.6 |
| 40 | 3.47 | 3.20 | 112.7 |
| 50 | 4.79 | 4.52 | 199.8 |
| 60 | 6.29 | 6.02 | 321.4 |
The ‘with-rollout’ column is calculated by subtracting the time it takes for the vehicle to go 1 foot (in this case 0.99 feet took 0.27 sec in the data file) from the times in order to reflect rollout.
Run was with car hot, low on gas. Regular Unleaded. More to follow.
Update: This video adds live Tach. The performancebox does not data log RPM. For this file I post-processed the data file to calculate RPM based on the Cadillac CTS’ velocity and added it to the datafile before the overlay process in Trackvision:
Caddyinfo Trackvision RPM Test from Bruce Nunnally on Vimeo.