Quote:
Originally Posted by SuperTrooper
You are correct about the dragster tires. The latest versions deflect much less, but if you took a picture of the tire near the finish line you would see it is almost oval. The tire narrows at the top of it's rotation (furthest from the road) and then is flattened back down due to the tremendous downforce created by the rear wing.
Passenger car tires have much stiffer sidewalls and cords than racing slicks, so actual narrowing of the tires by cetrifugal force at normal speeds is negligilbe.. Only by overinflating a tire can you reduce it's contact patch.
|
I think you will find that drag slicks are bias ply tires. It's the belts, not the sidewalls that prevent the growth due to centrifugal forces - and if the belt isn't enough, circumferential cap plies are added.