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First Track Day

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Old Oct 25, 2011 | 09:52 PM
  #16  
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marcinr, thanks for the videos. I did not have a spin at the track but came close. Got into the gators coming out of a fast 72 degree turn. It kicked the rear end out but I got it straightened out.

I did have one off track excursion. I'd just made a fast pass through a 'kink' in the middle of a long straight and it was the first time I'd done it really well and the instructor was yelling 'beautiful, beautiful' when a train of cars got bunched up in the hairpin up in front because someone else had spun. I lost focus had too much speed and didn't react quick enough. I knew I couldn't get it slowed down enough so I drove it off into the grass. No drama. Didn't spin on the grass. Got waved right back on.

They say CMP is a technical track and hard on brakes but most turns have a lot of run off so it is a good track for beginners too.
 
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Old Oct 25, 2011 | 10:04 PM
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Sounds like a hoot! I want to do a track day next year.
 
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Old Oct 25, 2011 | 10:46 PM
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Sounds like a gas, glad you had fun. I agree some handling mods would make it even more interesting. Sadly our local track is shutting down, this was its last season. Kicking myself that I have never gone.
 
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Old Oct 26, 2011 | 03:16 AM
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Originally Posted by N80
marcinr, thanks for the videos. I did not have a spin at the track but came close. Got into the gators coming out of a fast 72 degree turn. It kicked the rear end out but I got it straightened out.
Rumble strips are often perfectly usable pavement at apexes

I did have one off track excursion. I'd just made a fast pass through a 'kink' in the middle of a long straight and it was the first time I'd done it really well and the instructor was yelling 'beautiful, beautiful' when a train of cars got bunched up in the hairpin up in front because someone else had spun. I lost focus had too much speed and didn't react quick enough. I knew I couldn't get it slowed down enough so I drove it off into the grass. No drama. Didn't spin on the grass. Got waved right back on.
You did the right thing. Going off track is no big deal, especially if it helps you avoid an accident.

They say CMP is a technical track and hard on brakes but most turns have a lot of run off so it is a good track for beginners too.
Look over your brakes thoroughly, and check pad thickness. If your brakes were smoking, you could have overheated your pads. If they look lighter than normal and bits are flaking off, replace them, the binding material has burned off and they're unsafe. This is the biggest issues G's have when tracking; the brakes are fine for the street, but just insufficient for track days. As you become a faster driver, they'll suffer more and more. EBC yellows will probably be good for a little while, but if you don't have the Brembos, the rotors are just too small and will glow red hot and start cracking. Replace them when you can feel the cracks with your fingernail, otherwise the cracks are cosmetic and ignorable. In the track day where I recorded my G35 video, even though it was wet, I destroyed a set of four brand new DBA-4000 rotors and race pads. The temps got over 800 Celsius (> 1400F).
 
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Old Oct 26, 2011 | 08:23 AM
  #20  
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I don't know what kind of temps I was getting out on the track but after a cool down lap and then back into the paddock they were typically no more than 350 degrees F, usually closer to 250.

What orientation do the cracks appear in? Are they like the grooves on a record or are radial (coming out from the center)?
 
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Old Oct 26, 2011 | 09:30 AM
  #21  
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Originally Posted by N80
That's it. Hard, hard, braking (right up to the point ABS kicks in). Down shift, up rev. Off the brakes before you start your turn in. Turn in much later than you initially feel like you should. Unwind the steering wheel more than you think you should and back on the throttle to 'steer' you through. Then you have to learn to do it smoothly.

The problem is that once you get on the track (if you have never done it, and yes, motorcycle experience would be a big advantage) all that stuff happens so fast and you forget everything you read because suddenly it doesn't make sense anymore. Its right, but it doesn't seem right at first. You just have to listen to the instructor and keep doing it over and over again. And no matter how many videos I watched, and I had the course memorized, the first few times I was lost and was not anticipating which turn was coming up next. Trying to react to a turn without knowing which one it is is simply useless. But within a few laps....okay 10 or 12... I was able to know where I was and which curve was coming up and what line I needed to take.

I botched it so many times early on the instructor had me leave it in 4th gear for a good many laps so I wouldn't focus of shifting and botch everything else. This made corner exit fairly slow but it worked and things finally came together. By the end of the weekend I was getting it all of the elements together and it felt great. I was still inconsistent and still didn't have that smoothness. Will work on that next time.

Anyway, I'm primarily sharing this experience not to bore everyone but to get people out there and give this a try. There are tracks almost everywhere. Carolina Motorsports Park is in the middle of NoWhere South Carolina but is only about an hour from my house.

http://www.carolinamotorsportspark.com/

Check with NASA in your region.

http://www.nasaproracing.com/

There are lots of 'Z' clubs (that include G35s) in most larger cities that do track events. You can go out with Porsche or Mustang clubs too. Also, a good many tracks have their own high performance driver education days as well.

Just do it.
I agree def need to get out there and just have fun! One thing that helps a lot of riders at motorcycle track days is dont forget to BREATH! It sounds stupid but a lot of people get to the point theyre concentrating so hard they forget to breath. Another good thing is focus on one thing at a time Braking, down shifting, look for your turn in point, look for the apex, then look at your exit point, and accelerate through the turn.
 
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Old Oct 26, 2011 | 09:41 AM
  #22  
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One of the stranger things my instructor taught me was using the throttle to get you through the turn after the apex. I just had to trust him because it did not make sense until it actually worked.

If you've never done it it is hard to imagine but essentially halfway through the turn the instructor tells you to unwind the steering wheel which is the first hard part because you still see the rest of the turn in front of you and straightening the wheel is not intuitive. And you have to roll into the throttle at the same time. But when you finally do it right you can feel it and it makes sense. The power from the rear wheels 'steers' the car through the rest of the turn even as you straighten the steering. It technically isn't drifting but it is a sort of controlled mini-drift.

That was one of the more eye opening techiques that just don't sound right on paper.
 
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Old Oct 26, 2011 | 11:15 AM
  #23  
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Originally Posted by N80
One of the stranger things my instructor taught me was using the throttle to get you through the turn after the apex. I just had to trust him because it did not make sense until it actually worked.

If you've never done it it is hard to imagine but essentially halfway through the turn the instructor tells you to unwind the steering wheel which is the first hard part because you still see the rest of the turn in front of you and straightening the wheel is not intuitive. And you have to roll into the throttle at the same time. But when you finally do it right you can feel it and it makes sense. The power from the rear wheels 'steers' the car through the rest of the turn even as you straighten the steering. It technically isn't drifting but it is a sort of controlled mini-drift.

That was one of the more eye opening techiques that just don't sound right on paper.
When you get faster, and are near your traction limit, you make more adjustments to your line with throttle in a turn than with the steering wheel. It's hard to describe in email without pictures, but every car has an angle of the steering wheel which corresponds to a specific tire slip angle, that it in fact the highest grip angle your car/tires/suspension can do. It generally doesn't matter which turn you're taking, this angle is always the same, and you adjust your speed to make it through all turns with that steering angle. This ends up being the fastest line for your car. If you go in a little too slow, you'll find the car tucking more into a turn, so you give it gas to push out a little bit, and conversely, letting up a tiny bit on the throttle will transfer weight to the front, making the car tuck in more. It's great fun.

Oh, and in my other post, the heat induced cracks I was referring to are spider web like, radial cracks which connect to each other. Little ones are ok, but if you can feel them or see through them, change the rotor. You have a newer G than mine, tho, and Infiniti improved the brakes after '04. The '03's and '04's are pathetic.

Good luck, and keep it safe out there. It sounds like the world gained another track addict
 
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Old Oct 26, 2011 | 11:53 AM
  #24  
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Originally Posted by marcinr
It sounds like the world gained another track addict

Yep. Already got another track day on the calendar in a few months.
 
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Old Oct 26, 2011 | 01:18 PM
  #25  
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I'll be going here: MillerMotor someday.
I think i will wait till spring, but i want to upgrade my sways, suspension and brakes first.
 
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Old Oct 26, 2011 | 01:58 PM
  #26  
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That is an awesome looking track. Much longer than the tracks around here.
 
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Old Oct 26, 2011 | 02:32 PM
  #27  
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I have always wondered what it would be like to do a Track Day with a car. I know its an addiction for me on the Bikes. I can not get enough of it.
 
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Old Nov 25, 2011 | 08:48 PM
  #28  
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Since track threads are so preciously rare here, I thought I'd hijack your thread a little and post some video from a track day I just did at Laguna Seca. It's awesome to score a track day at this amazing track that I only live 90 minutes from. Here's the vid:

This is an addictive, expensive hobby
 
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Old Nov 27, 2011 | 05:38 PM
  #29  
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Cool video. I'm assuming that's the Lotus.

I do wish there was more talk about track days, autocross and time trials on this site. I know that the G35 is not an ideal track car. On the other hand, it is still good enough to be a great deal of fun and has potential to be a better track car with fairly minor modification......which cost far less than what a lot of mod addicts spend on bolt on engine and body mods that really don't do much in terms of performance.

Also, the G35's out there are getting older and cheaper which make them more attractive as track cars.

I have thought about possibly buying a dedicated track car but concluded that it really does not make sense. My G35 coupe is pushing six years old and 90k miles. It will be a lot cheaper to slowly modify it and transition it to a dedicated track car and pick up a new daily driver when the G no longer works as a DD. Better shocks, sway bars, camber arms and some weight loss measures would transform the car pretty cheaply without making it useless as a DD. It wouldn't have to stop being my DD until I started gutting the interior.

There is a lot more discussion about track use on the my350z forums.
 
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Old Nov 28, 2011 | 05:57 PM
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How were your oil temps throughout the event? How many sessions (and how long were they)? I wanted to get out this year but just didn't have the time. Definitely do it next year.

Jeremy
 
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