Never done a rolling road, how much punishing do cars take? What do u do? Do u go on rollers and red line in every gear? Or? Sorry not really sure, lol, how sad.... Hahahahaha
Cheers....
The car can take as little or as much punishment as you like, basically the car is setup on the dyno at the correct speed to gear ratio, then we select that gear for the power runs (which is normally third gear btw) then put the pedal to the metal! We normally let off once the car reaches maximum revs, this is repeated three times to give your car a fair chance at making peak power.
However, if you'd rather not rev your car to the limit you can always ask us to stop at a certain rpm which we'll gladly do, but you may not get an accurate idea of the maximum power being achieved. By rule of thumb I normally pedal off when the power has hit it's obvious maximum.
Hope this helps.