Belatti wrote: But it is also true that its more difficult to acelerate "angularly" the car in the X axis. It may help a novice driver without good and trained reflexes.
My bad, I meant Z axis.
F1_eng wrote:... but drivers have preferences, for example a british touring car design company spent a fortune on light materials and reducing MOI by moving stuff to the middle, then after pre-season testing with the driver, he hated the car. They ended up putting ballast in the front and rear bumper, he then reduced his lap times considerably. I wont say which team or driver but it was a while back...
Thanks F1_eng! That was what I was trying to tell to this race engineer with suposedly a lot of experience...
Here in the TC series there are four types of cars:
Dodge, Chevy, Torino & Ford.
All brands basically weights the same, have different engine blocks (3 liter, 6 cil, 50s designs with OHC and 2 valves per-cyliner) with different bore/stroke ratio, but the same power (and not torque curve) and very very different aerodynamic shapes. Its not a silhouete series as the rulebook is pretty open in rollcage construction and suspension geometries are different between each brand.
The Dodge and the Ford being the two most extremes cases: Ford has hideous aero, with downforce variations through the speed range, its smaller (less MOI)
and has an oversteering tendency. The Dodge has a smoother aero but its larger (more MOI)
and has an understeering tendency.
Ford is way better for chicanes, although a bit nervous. Dodge is better for high speed curves, but a bit slow reaction for chicanes. There are some drivers that can handle anything, but some others that just cant go from one car to another that easily and driving styles counts a lot here...
Hence my MOI question.
About the centre of precussion I will search and study a bit more about that. Thanks again!
"You need great passion, because everything you do with great pleasure, you do well." -Juan Manuel Fangio
"I have no idols. I admire work, dedication and competence." -Ayrton Senna