Well... I got kinda bored. Put in 10 of my runs at a local 1/8 mile track into Excel (60', 660', MPH, Tire Pressure, and Launch RPM). So basically I ran a regression analysis with four of the independant variables and the dependant variable being the 660' time.

If I interpreted the data right, which the r-square (% accurate) only ended up being 70% and we'd like to see atleast 95%, the 60' time has significantly the most impact on the 1/8 mile time over the tire pressure and launch RPM and MPH.

Basically, for every .100 increase/decrease in 60' time led to a .140 increase/decrease in 1/8 mile time. Now, remember, this was with only 10 runs for data and the predicted accuracy was 70%.

So.... take .200 off of your 60' and see .280 come off your 1/8th mile.

More results:
.1 decrease in tire pressure led to a .0012 decrease in 1/8th mile e.t.
Launch RPM didn't register. .0000 so there didn't end up being a relation with e.t.
.1 increase in MPH ended up shaving .0031 off of the 1/8th mile e.t.

One can do the same with temperature, humidity, and elevation, etc... I didn't have any data for these. So to compare elevation, you just have to make passes at two or more tracks and collect the data. I just used one single track so that I could keep the 60' and E.T.s consistent with that track.

Modified by Honda Bull at 11:44 PM 3/8/2006


Modified by Honda Bull at 11:44 PM 3/8/2006