Has anyone experimented with gearing?

[Bob_n_Cincy]

Scargo, nope, no sale, I'll own J-Lo forever as a toy! I'm running stock 16's now with tire dia 24.8 or so with 225-50-16 in the rear the front's don't matter re gearing for each ratio, top speed in each gear is listed with the stock 05 WRX gearing and a 3.9 diff 68 and change in 2nd, just short of 100 in 3rd, almost 140 in 4th the car is not slippery enough for my engines HP (about 240 to the wheels) to pull 181 MPH at redline in 5th I'm guessing with the CD and cross section of my 818 155 -160 would be max speed

Speaking of coefficient of drag calculations.
Our car measured 195 whp on a conservative dyno.
At out last track day the data log shows we accelerated from 95 to 118mph in 5.25 seconds. I suspect our car to be near 2200 lbs with driver. I estimate tire rolling reistance at 0.015.
Does anyone know an online calculator that will take this info and spit out coefficient of drag ?
Bob