I was sitting here trying to figure out my 1/4 mile time from my 1/8th times. The calculation that they use to estimate the times just sounded odd to me. What was it? 1.5832 X 1/8 time? That would put my truck, as-is, at 15.056 in the 1/4. That sounds like a high estimate.

My calculation.....

5280 ft / mile
1320 ft / quarter mile
660 ft / eighth mile
75 miles/hr = 75 x 5280 ft/hr = 396,000ft/hr = 396,000/60min/60sec = 110ft/sec

If my 1/8 mile trap speed is 75 mph then I am traveling 110 feet / second. If I did not increase one more mile per hour for the entire next 1/8 mile it would take me 6 seconds to get to the finish line resulting in a trap time of 15.51 seconds.

I guess they think we hit a wall for increased acceleration at the 1/8 mile mark?

Do the numbers make sense?