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-   -   Fun Track Day, Little Mishap (http://www.the370z.com/track-autocross-drifting-dragstrip/23543-fun-track-day-little-mishap.html)

Sharif@Forged 08-17-2010 05:20 PM

Quote:

Originally Posted by spearfish25 (Post 680336)
VDC was off. If it was on, I'm sure the slide would have been tamed very quickly and never would have become a perpendicular experience.

As things started to break loose prior to the apex, I slowly added right lock. However, what felt like a little tail wag quickly escalated and I then put on the right lock as fast as I could. Probably more right lock early would have saved it but I just didn't feel it was going to 'go' that fast (prior to full slide).


On a side note, I really appreciate all the comments and insight. This post-track analysis is equally or more valuable than the actual slide experience!

Every off road excursion or spin is a great learning experience...a teachable moment. :) That's the way I always see it, and I've gone off a couple times myself. Do this long enough and it will happen but hopefully fewer and further between.

One thing to keep in mind with wheel corrections to prevent spins, is that they have to be early, abrupt, and instantaneous which is usually the opposite of how most driving instructors teach their students how to drive. We ask everyone to be smooth, slow, and precise with the wheel, but when it comes to spin prevention there needs to be more aggression and immediacy in the wheel. Another thought to keep in mind, is the wheel needs to come back to straight before the car does, or else you will end up with a tank slapper, over-rotating, and a spin in the opposite direction.

I have some videos from Sebring with the GT3 that would be great to illustrate this, as Sebring is super bumpy, and the GT3's rear end moves around a lot. I will try to get them up shortly.

cossie1600 08-17-2010 06:26 PM

Bring an extra pair of underwear for each track day too, just in case.

spearfish25 08-17-2010 06:34 PM

In for videos, Sharif. Always enjoy the GT3 vids :woot:

Sharif@Forged 08-17-2010 09:23 PM

Quote:

Originally Posted by spearfish25 (Post 680444)
In for videos, Sharif. Always enjoy the GT3 vids :woot:

GT3 Video from Sebring! And if you aren't quick enough with your hands, you loose a side mirror. :tiphat:

Notice how the hands catch the slides instantly, and are to center as quickly as humanly possible.

http://www.youtube.com/watch?v=CxlUhkz_7To

spearfish25 08-17-2010 09:41 PM

Can't get the movie to work. Is the link correct?

***Nevermind, iPhone glitch. Great video and nice save near the end!

Valentino 08-17-2010 10:04 PM

Nice save :tup:

and Sharif's link is working fine with me.

Dustin@Z1 08-18-2010 03:43 PM

6:36 did you hit a slippery spot or were the tires starting to get greasy?

It looks like the back end got loose under braking coming into the corner and unsettled the car.

Sharif@Forged 08-18-2010 10:53 PM

Quote:

Originally Posted by Dustin@Z1 (Post 682398)
6:36 did you hit a slippery spot or were the tires starting to get greasy?

It looks like the back end got loose under braking coming into the corner and unsettled the car.

Just a split second too much trail braking...that was the difference. This circuit is so long and grueling, coupled with the hot weather made it hard to keep my concentration 100%. It was pretty miserable out there.

ChrisSlicks 08-19-2010 07:24 AM

Rear engined cars aren't exactly the easiest to trail brake on either.


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