I've gathered all of the time slip data I can find from the last two weekends of drag racing. Most of the slips come from this site - many thanks to Tom Saxton for entering his slips into a spreadsheet already!
So far, I've found 35 runs by 2008 Roadsters (Please note: I've eliminated two runs by 2008 Roadsters which appeared to be outliers caused by driver error, leaving 33 runs by 2008 Roadsters), and 7 runs by James' 2010 Roadsters Sport.
Here is a quick analysis of the data so far.
The standard deviations for the 2008 run and for the 2010 Sport runs are very similar. The 2010 Sport advantage comes early, with around a 5% faster time at 60ft, 330ft and over 4% faster at 1/8m. The 2010 Sport advantage is down to 2.6% by the 1/4m because the .35s lead built by 1/8m stays constant from there.
I believe there is an additional outlier in one of the 2008 runs - there is a 60ft time recorded of 1.903s, which is the only 60ft time under 2.05s for any 2008 run. When this value is eliminated, the 60ft best times and diffs match what is expected based on the mean times and diffs.
If you have slips that you have not posted, please post them here so I can add them. I'd especially like to see some 2010 non-Sport slips from this weekend.
So far, I've found 35 runs by 2008 Roadsters (Please note: I've eliminated two runs by 2008 Roadsters which appeared to be outliers caused by driver error, leaving 33 runs by 2008 Roadsters), and 7 runs by James' 2010 Roadsters Sport.
Here is a quick analysis of the data so far.
Code:
1/4 MPH 1/8 MPH 330 60
08 best 12.982 104.23 8.315 86.14 5.468 1.903
08 mean 13.225 101.10 8.460 83.86 5.513 2.083
08 STDEV 0.178 1.86 0.0932 1.36 0.0476 0.0472
10s best 12.643 102.89 7.968 87.02 5.173 1.922
10s mean 12.878 101.20 8.106 85.68 5.243 1.974
10s STDEV 0.175 1.60 0.132 1.52 0.0789 0.0446
best diff 2.61% -1.35% 4.17% 1.02% 5.40% -1.00%
mean diff 2.62% 0.09% 4.18% 2.17% 4.89% 5.23%
08 = 2008 Roadster
10s = 2010 Roadster Sport
(for the diffs, positive x% indicates the 2010 Sport was x% better and
negative y% indicates the 2010 Sport was y% worse)
I believe there is an additional outlier in one of the 2008 runs - there is a 60ft time recorded of 1.903s, which is the only 60ft time under 2.05s for any 2008 run. When this value is eliminated, the 60ft best times and diffs match what is expected based on the mean times and diffs.
If you have slips that you have not posted, please post them here so I can add them. I'd especially like to see some 2010 non-Sport slips from this weekend.