BlackHammer

I need some feedback on my low MPH's and comments on my terrible times to 100 MPH (the worst I have seen for an E55 is 9.7 and I have ran 9.5's after 4.35 0-60 runs on my G Meter Accelerometer (accurate, as you will see)...

The best run of the day was a 12.36 @ 111.89. Best trap speed was 114 with a 12.45 ET

Went "3-3" in an open track day. Nothing that did not come to the track on a trailer beat me.

Just left the track (typing while a buddy drives). Here are the vitals:
Temp – 47 on the early runs and about 55
Track Conditions – Very good - combined with New Toyo’s (thanks Chiromikey for the recommendation) I am not sure if I can improve on my best 60’ time of 1.846
Conclusion – Happy with my time, the Passport G Timer (Vehicle Perfomance Monitor) is WICKEDLY accurate – my car runs better when cold. My car fell on its face over 100.
Car got a few tenths slower with each run, after I cooled it off for about 70 minutes (ice on the blower, too) ran the best MPH with a not so good 60’ time).
Ran @ 10:47, 11:01, 11:19, 12:39, 1:01, 1:19
So, here are details on a few of my runs – in order/key stats:
Slip(s)
R/T .202/1.67/.09/.097/.037/.052
60 1.846/1.899/1.922/2.009/1.911/1.996
¼ 12.358/12.498/12.36/12.45/12.442/12.398/12.509
MPH 112.78/111.91/111.89/114.34/112.92/1113.36

Interesting Status (My MPH were slower than anticipated). In the races against a few other cars and some cars I saw were: 11.35 @ 116, 11.221 @ 118,, 10.8 @ 124). Why the low MPH's - The race was in Wisconsin (950 feet above sea level)

G Meter Runs/Comparison of Key Stats with Actual Time Slips (Interesting)

12.35 Time Slip Run (G Meter Results)
0-10 .17
0-20 .73
0-30 1.38
0-40 2.05
0-50 2.93
0-60 3.98
0-70 5.08
0-80 6.38
0-90 8.05
0-100 9.82 (NOT GOOD)
0-110 11.82 (NOT GOOD)
¼ Time 12.38 (Delta + .02 for G Meter – Time Slip Time 12.35)
Speed 111.6 (Delta – 1.18 Slower for G Meter)
1/8 @ 7.95@ 87.8 (7.969 @88.39)


12.509 Time Slip Run (G Meter Results)
10 .27
20 .95
30 1.57
40 2.22
50 3.13
60 4.12
70 5.2
80 6.47
90 8.15
100 9.88 (NOT GOOD)
110 11.87 (NOT GOOD)
¼ Time 12.5 ( .009 Faster than Time Slip – Time Slip was 12.509)
Speed 111.9 (-1.46 Slower MPH for G Meter – Times slip was 113.36)
1/8 8.10 @ 88.43 (Time Slip was 8.139 @ 89.2)

Blk04cobra1

There's all kinds of things that could effect your times at the track versus the street...do you know what the DA of the track was that day?

BlackHammer

No (thanks for the clarification) but I don't know what the "DA" means...

Also, what do you drive? I see "COBRA" in your user name (do you have a Cobra?). There were a few at the track (raced one) and another one with a K-B blower (black) that I did not see run.

Rudyrono

DA stands for Density Altitude. As you are aware, altitude has a pretty profound effect on your ET/Trap, etc. For example...I ran the other night at our track and the DA was 3000' whereas the exact altitude of the track is about 2100'. Here's a link to a DA cacluclator.

http://wahiduddin.net/calc/calc_da.htm