Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Track / Autocross / Drifting / Dragstrip (http://www.the370z.com/track-autocross-drifting-dragstrip/)
-   -   My Performance Driving Course (http://www.the370z.com/track-autocross-drifting-dragstrip/35032-my-performance-driving-course.html)

tjlazer 04-20-2011 11:02 AM
How much did the course cost and what all do you need to do to sign up? I want to do it too.

ChrisSlicks 04-20-2011 11:02 AM
Quote:
Originally Posted by Armonster (Post 1063691)
I didn't know that VDC corrects understeer. How does that work? I always just assumed it was limited to correcting power oversteer by selectively cutting power to the rear wheels.
It pulses the appropriate brakes to reduce the understeer. It did it to me once on an off ramp right after I had new tires mounted that still had the mold release on them.

SeattleLion 04-20-2011 12:59 PM
Quote:
Originally Posted by tjlazer (Post 1063722)
How much did the course cost and what all do you need to do to sign up? I want to do it too.
It costs $555 and is run on Pacific Raceways in Kent Wash.

SeattleLion 04-20-2011 01:01 PM
Quote:
Originally Posted by ChrisSlicks (Post 1063724)
It pulses the appropriate brakes to reduce the understeer. It did it to me once on an off ramp right after I had new tires mounted that still had the mold release on them.
Based on me trying to force understeer, I can tell you that the VDC makes it very very hard to understeer. I was way too busin in the exercise to notice if the light went on. Coming from NY whew we had plenty of ice and snow, I am not sure whether the VDC or my foot controlled the understeer. Based on the fact that it corrected in a second or less, I am pretty sure it was the VDC and not me.

cossie1600 04-20-2011 01:15 PM
understeer is caused by the rear having more grip than front usually. you can easily do it by going too fast into the turn, too much steering angle, too much throttle. since the car cant control your steering, the vdc would either cut power or apply brakes to slow the car

Nikon FM 04-20-2011 01:39 PM
Quote:
Originally Posted by SeattleLion (Post 1062413)
We were told explicitly to leave VDC on. I think the lack of understeer proves your point. On the track, once I got more aggressive, the VDC did slow me down in a turn when I didn't need it (or didn't think so). I only sensed it working once. I guess I am not aggressive enough yet on the track.

Turn 3B (at PacRaceway) is the only turn I feel the VDC rob my track out acceleration.

SeattleLion 04-20-2011 02:23 PM
Quote:
Originally Posted by Nikon FM (Post 1064189)
Turn 3B (at PacRaceway) is the only turn I feel the VDC rob my track out acceleration.
I felt it there too. The instructor wondered why I slowed so much. I told him that I didn't do it. I felt I had a lot more traction than the VDC apparently did.

Nikon FM 04-20-2011 10:59 PM
Nice! My 1st HPDE (this season) is tomorrow :driving:


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