Estimating an incomplete run
During elimination's you may have to lift or brake while nearing the finish
line to avoid breaking out. By doing this, you will not have a 1/4 mile time
to base your next run prediction on. If the track you're on gives 1000' times
as well as your 1/4-mile ET, you can derive a 1/4-mile ET by using the following
method: It works best on a 1/4-mile track with 1000 lights. By the time you
get to the 1000 point, your ET is pretty much carved in stone. Dont try to
use this method on 1/8th-mile tracks with 330 clocks or 1/4 mile tracks with
only 660 clocks because there is too much room for error. It doesnt work that
well for Super Class racing either, unless the Timer amounts on both runs are
within .02 seconds. This is a calculator type function. If it were put in program
form, it would just slow you down. The first step is to clear the memory in
the calculator mode by hitting the R-CM button TWICE. Then find a good run,
done earlier, to use as a reference run. It should have a good 60 time and
high MPH. Take the 1/4 mile ET and divide it by the 1000 ET. This will generate
a factor of about 1.198 for the average car. Press the M+ button to put this
number in memory for future use. (You only need to do this once.) On the incompleted
run, find the 1000 ET and multiply it by this factor. In the calculator mode,
type in the 1000 ET (corrected for excessive 60 time if needed) then hit the
X button, then R-CM ONCE, and finally. For example: 7.435 X R-CM =. You should
get 8. 907.