Old Drag Racer Formulas: The "Q" Ratio or Factor??

Here's a series of 1/8mi timeslips from last weekend, one of my stickshift customers running a 4spd manual trans with a diaphragm clutch controlled by one of my ClutchTamers…

charliebooze112018.jpg
He's within a tenth of the 660 formula on the first two slips, a little over a tenth above the 660 formula on the second two slips. On 1/4mi passes he's usually pretty close or even beats the 1320 formula.

Grant