Post by
HashiriyaS14 »
https://forums.nicoclub.com/hashiriyas14-u11745.html
Thu Feb 10, 2005 11:44 am
Smoothness, in the racing sense, generally boils down to what your tires are doing.
A given set of tires mounted on a car of a given weight are capable of doing only so much. This limit can be split between several tasks, such as accelerating, turning, and braking (i.e. turning and accelerating simultaneously).
The objective should always be to smoothly transition between these tasks, thus allowing your tires to do whatever they are doing to their maximum capacity.
Example: Let's say that I'm coming into a tight left-hander, braking super late. I will be braking and downshifting at the same time (hence heel-and-toe). At least in my car (no ABS), I have to carefully modulate the brake pedal to brake at the limit but yet still not lock up the tires. Imagine now that while trying to do this I do a real messy downshift, tons of drivetrain shock, crappy rev matching, etc... You know what happens when you do that, the tires spin/jerk a little. If this happens while I am at the limit of my braking, I will loose adhesion. This could be either inconvenient or catastrophic, depending on the extent.
A similar example is cornering while on the accelerator. In a powerful car, you're not just going to stab the gas, then get totally off it. That'll play hell on the rear of the car, breaking the tires loose, then re-gripping, lather, rinse, repeat. Ideally, you balance the amout of gas to precisely the limit of adhesion to maintain the ideal line.
I don't really get to do all this in practice that much, so if anyone here who does lots of this wants to correct me, please do. I don't claim to have it all right. But, as I understand it, smooth = good.