Quote:
Originally Posted by Ed OBrien
do the math a lighter car that leaves harder will ALWAYS move quicker and that includes the first 8 inches .
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That is incorrect, due to a huge number of variables not taken account for -- some of which I noted in my earlier post. As just a for-instance, a Super Gas car reacts as fast as a Pro Stock car. Top Fuel cars don't react very fast at all, due to the clutch and massive tire wrap-up.
As another example, take my Volare with a 1.45 60', Terry Knott's Dart Sport with a 1.50 60', and my Duster bracket car with a 1.60 60'. Terry's car reacts the fastest of the three, followed by the Duster, and the "quickest" of the cars, the Volare, reacting the slowest. With the SS/CM car I referred to earlier, the slow transbrake, long button, and much larger tire (more slick wrinkle), had the same rollout as Terry's Dart. I've also driven a SS/BX car, which was the 3rd quickest car I've driven, yet it was the fastest-reacting car I've driven, by a TON.
A lot of things happen that effect reaction time *before* the car physically starts moving forward.
John D -- My "favorite" timing system error I've seen is one where it gives the correct incremental times, correct MPH, yet trips the finish line with the BACK tire. I saw this happen about four times in one day. We could fill a whole separate thread with timing system "nuances".