Excellent info here

http://www.wallaceracing.com/Calculators.htm

 

Thank this is great. Used it to figure out that my best 0 to 60 was 2.7 seconds. Not shabby for such a horribly high DA at the dragstrip

 

Pretty much on par with the Veyron on a good day...making the 991 one of the fastest 0-60 production cars on the planet!!

 

There were two Veyrons also running quarter miles at Albuquerque Dragway that day -- Ben Chen's Golden Panda and Bluegatti's Bluegatti. They were a bit faster than my car and were trapping in the tens. So was the Porsche 918 which was there. My car was third fastest. If I had been able to put in race gas and switch to the race gas tune when the car was cold it would've been in the tens as well. But by the time I switched to race gas the car was hot.