Id be curious to see how accurate this thing is I made. Most of you have probably already seen it. All the data you really need is on the first sheet and you can scale the hp curve with cell B10 or change it to mirror your dyno graph. Its just simple physics applied to our car. You can change the air density and CD of the car as well as the frontal area to see how it affects the acceleration of the car.
A stock car shows about ~170mph. You can scale up the hp as needed to see what it takes to clear 200mph. 420hp to the wheels would eventually reach 200mph in gear 6 with a FD of 3.357.
https://drive.google.com/file/d/0BxG...it?usp=sharing