I am still concerned about the 113 mph that is what has got me thinking as mph hardly changes unless you make more horses. You can make all the gear changes you want but your trap speed will be almost always the same.
I do drag race and I said Gear ratio is not all that important in drag racing as long as your not running a 2.73 Gear ratio or torque is important as it gets you out of the hole and rolling then horsepower must take over and get you to the end. Your trap speed remains almost constant when you change gear ratios you just change your et from the torque multiplication or removal. The reason for the low gear in dragracing is because we all run big tires height and width for traction hence we need a low gear. A small tire is poor for traction and height is better than width everyone knows that and is why when you put on a larger tire you need to change your gear to compensate.
The reason you see two cars with the same et but different mph at the track is because the one with the higher mph makes more horsepower but just can not put it down to the track, if he did his et would be lower.
In the same respect that if you smoke your tires on the start from too much power or if you don't and get a great start your et may vary as much as 1 sec but your mph will be almost the same.
So look at your trap speed and you can then see what your car is capable in the et department. 113 mph on a srt6 means that if you can get it to hook up would be about 12.2 not a stock car in my opinion 108 mph would net about a 12.9 which sound more realistic.

Check this out he explains it better: http://www.turbobricks.com/resources...uartermiledyno

Another example of gearing and mph: http://www.dragtimes.com/forums/index.php?showtopic=60


The start of the track is a big player in the ET, but a small player in the mph. The end of the track is a big player in the mph, but a small player the ET. This is true and why gear ratio changes make little effect on mph but make big changes on et.