Quote:
Originally Posted by iang454
Surely you need the chassis to be as stiff as possible because if the chassis is flexing all over the place it will become uncontrollable.
If the chassis is stiff the suspension tuning will be felt by the driver as the changes will be directly positive or negative.
If you make a suspension change while the chassis is flexing in the middle the results will become unclear?? 
Thank you guys for all your feed back. 
Ian |
As a rule a car with a more flexible chassis will seem to generate more grip, be more forgiving of mid corner bumps, and have a larger setup window.
A car with less flex will be more responsive and consistent in high grip conditions , and more responsive to setup changes, but also ends up with a smaller setup window to the point that you just can't get the car setup.
The theory of a very stiff chassis is sound, but the reality is a little bit of flex tends to make a faster and easier to setup and drive car.