[masraum]

Originally Posted by flipper35

I don't think stock gearing would get him there regardless of the power he has.

I wouldn't assume that with any modern high perf V-8 car. Most of the big American muscle cars these days have 6 speed transmissions with very aggressive overdrive gears (usually 2 or 3 of them). A 2011 mustang is no different. Granted, you'd need a ton of power to do it, but, a stock 2011 Mustang GT has a 7000 rpm limit. One of the stock rear gears was 3.31:1 (3.55 and 3.73
were also options). The 6th gear in the stock 6 speed transmission is .65:1 which gives a final gear ratio of 2.15:1. (all from Internet searchs)

With that gearing, if you had whatever power was required to push past the aero, and the suspension and tires and place to do it, theoretically, the mustang should top out at about 265mph. (using 3 different calculators from the 'Net).

So, stock gearing could theoretically get you well over 208.

I went ahead and did the calcs for 3.55 and 3.73 rear gears too.

245mph - 3.55 in 6th at redline

234mph - 3.73 in 6th at redline.

If he had 4.10:1 aftermarket rear gears swapped in, his theoretical top speed in 6th gear at redline would be 212mph.