Hypothetical Driving Situation
i'd downshift as soon as the car is straight so i have the assistance of my engine braking, i'd also ride the brake a lil bit and pray to god that VSA directs the car the way i want it to go. 3 days ago i just re-discovered how unpredictable VSA is... all after i thought i had it down
Originally Posted by shotiable,Dec 10 2006, 11:28 PM
i'd downshift as soon as the car is straight so i have the assistance of my engine braking
If I was in this situation I would do my best to steer through the turn while braking, intiating a trail brake/turn entry oversteer that I would try to steer through while modulating the throttle as to not loop the car. Sounds like a lot, but once practiced, can become second nature.
BTW, you can check the sig photo for what that looks like in action.
Originally Posted by shotiable,Dec 10 2006, 08:28 PM
i'd downshift as soon as the car is straight so i have the assistance of my engine braking, i'd also ride the brake a lil bit and pray to god that VSA directs the car the way i want it to go. 3 days ago i just re-discovered how unpredictable VSA is... all after i thought i had it down
Happened to me the other night, but at the end of your red line, there was a perpendicular right/stopsign. Was vigerously driving a road I've only been on once. Very cold, very late and very dark. Came to the end of the twisites going way too fast. Hard braked, turned left, ABS jamming, car sliding towards the stopsign. About 10 feet from the sign, lifted off and the tires caught, snapped right, gased and corrected. I was less than 5 feet from the sign when I barely rounded it. I got lucky.
Originally Posted by DarkSigma,Dec 11 2006, 10:59 AM
I have a similar question. Has anyone taken their car on a high speed run on an oval. I have gone to a few driving events and the speedway in Nashville seems like my car would not be able to do a 135-155 run around that bank. I know it's just my lack of knowledge making me think this because I have seen nascar and IRL races and they do 175 plus. I just think I would feel safer going all out in a straight line.
someone educate me on my thinking.
sorry to jack the thread.
someone educate me on my thinking.
sorry to jack the thread.

I don't know diddly about NASCAR aerodynamics, but I guarantee you they are running much much much grippier tires than you are, ditto with the IRL cars, plus I do know that their aero generates TONS (literally) of downforce, thus increasing the grip of the tires, and preventing lateral G's from causing them to fly off the track. F-1 cars aerodynamics actually generate enough downforce at speed that they could easily run inverted, if someone cared to build an upside-down racetrack.
Do NOT try that in your S

Cheers,
Mike
In autocross, i found that the car under max braking actually understeers when you turn in, it's when you're trailing off the brake that initiates a rotation moment on the car. So based on how you take your foot off the brake pedal, during (or slightly before) turn-in has everything to do with your cornering attitude throughout the entire cornering sequence.
All said, in this situation, I would max brake in as straight a line as i can, to scrub off as much speed as possible, and probably turn-in while still trailing off the brakes, yes it'll probably make my car oversteer, but if the turn-in was reasonable, the imparted oversteer is probably manageable, so basically just keep on braking while the car is rotating a bit. This allows me to stay on the brakes longer, extending my braking zone deep into the corner, and saving the day.
None of this is ideal of course, just a desperate attempt to save a potentially disastrous situation.
All said, in this situation, I would max brake in as straight a line as i can, to scrub off as much speed as possible, and probably turn-in while still trailing off the brakes, yes it'll probably make my car oversteer, but if the turn-in was reasonable, the imparted oversteer is probably manageable, so basically just keep on braking while the car is rotating a bit. This allows me to stay on the brakes longer, extending my braking zone deep into the corner, and saving the day.
None of this is ideal of course, just a desperate attempt to save a potentially disastrous situation.



