Good to put this data all in one place. Using a gtechpro, here's what I posted on another thread: -
Mine is a standard cooper with not even a panel filter : We were two-up (maybe 150 kg combined), half a tank of regular unleaded fuel, 16" alloys with heavy runflat tyres: -
First run was 9.17s (wheelspin)
then 9.14s (wheelspin again)
less revs needed we thinks ...
9.28s (bogged down D'uh!)
so again with 4,500 revs but more slowly off the clutch: -
8.88s thats better
then again : 8.69s : the best time we were able to record.
During one of the later runs (but I'm not sure which) we also recorded a standing quarter mile time of 16.92s at 84.2mph.
Finally we logged the 60-0 braking performance. The ABS worked overtime and stopped us in 156 feet. I have no idea how this compares to factory or improved data, anybody? (dry road, maybe 15 degrees centigrade)
The lesson learned was to monitor, modify technique, improve.
...
8.69s from a std cooper is quite reasonable I think
Juno