Quote:
Originally Posted by TrackClub
Good discussion. I think an average autox pavement has a lot to do with it vs say: tire choices. So it sure seems that either bumps and/or very quick transitions between rear wheel spin and hard brake applications are the major cause. Why technically speaking i have no idea, except that is surely looks that such instances make ABS engage to prevent lock up, yet be unable to engage just yet, perhaps due to the car being unsettled.
Interestingly, even pros point out to bumps and street circuits in general (due to bumps) as having to be treated very carefully and GENTLY under braking. I know i have said it before, but the initial (softer) application (even if only for a nano second) to settle the rear before standing on the brakes is crucial. It is also much harder to accomplish (well) vs just say it.
Here's some general thoughts on late braking from the pros. Note - specifically - what is being said in the first 1.5 mins of this quick vid. This is not at all unlike the problems that pros in race cars can experience in similar situations.
http://safeisfast.com/video/late-braking/ |
Ya, this is good advice, I will experiment some and see what I can do to minimize the issue. As I play this back in my mind, more and more I'm thinking I've been focusing on the wrong thing (braking). I'm starting to think that this has more to do with rear-wheel spin. It is happening right at the end of high 2nd gear straights, where I'm going directly and quickly from full 2nd gear high RPM slightly spinning rear tires to the brake. So maybe the car is thinking "hey this dudes on the gas and his rears are spinning, wait brakes now? We must be on ice." I'm going to try and specifically ease off the throttle ever so slightly before the hard braking zone, just to ensure the rears aren't spinning at all...and see if that helps.
Which of course brings up a whole different set of driving style questions. My philosophy with these high-HP RWD cars is that in general, wheelspin = slower, but being right on the edge during acceleration...always being between solid traction and just a bit of spin is the fastest way to accelerate these cars. Feel the wheels spin a bit, back off a little, smoothly apply the throttle until they spin again, repeat...Thoughts on this?
Thanks again,
Mike