Brian - With out the tire data, then I guess we don't have the pieces of the puzzle to generate what # to multiply by ten to know how stiff to make our chassis.
Seem mute to me...... Guess it's time to go to the track and use an open mind, skills and some hard work.... Also, if the mfg's do or do not have the #'s is irrelevent anyway. Do you honestly think they would educate everyone in the industry about their engineering practices and work??