Like someone said before, the the larger mass car will turn over sooner because
the overturning (roll) moment acting thru the center of mass will be greater.
But since you have infinite grip, the driver would succumb to the G-loading
first. If the grip is not infinite, then we should look at the yaw moments
front and rear to determine which is greater; determining whether the car will
understeer or oversteer at the limit. That limit will be greater for the
smaller mass car for a given amount of grip because of the lesser yaw moment
relative to the amount of grip. Also the greater mass car will have the
aforemnetioned higher roll moment which will lead to reduced grip on both ends,
if not counteracted, and maybe even if it is. Of course the argument could be
made that the larger mass(weight) car will naturally have larger tires(just
common sense), so the grip levels WILL be different........ UGH!
This is probably all wrong. Great question, tho.
Anthony C. Ford
Mechanical Engineer
Mazak Corporation
(859) 342-1382
FAX 342-1537
B-Stock Cendiv #25
'99 R-model
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