High Performance Driver Tutoring
Introducing the HPDT track
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Tim McArthur
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Posted by Tim McArthur at 11:36 AM on Sep 10, 2007
Post #1

Autobahn South Course - [ Download Track ]

In the "Basic" tutoring sessions, passing will be limited to the highlighted areas only. All passes must be completed before the braking zones.

Tim McArthur
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Posted by Tim McArthur at 11:36 AM on Sep 10, 2007
Post #2

Below are some graphics to use for the proper line around this track. The Yellow line is the standard "late turn-in, late apex" line that will encourage safety and optimum exit and straight speeds. The trick to a late-apex line, is to be on the throttle, if not full throttle, at the point that you turn-in to the corner. You are essentially "straightening the corners" and/or "lengthening the straights" to maximize the time you are applying full throttle.

The orange cones are highlighted to use as reference points in your driving line. These cones are a primary reason that Autobahn South was chosen for the HPDT events. The second cone on each curbing, both apex and exits, are near ideal "connect the dot" points for your driving line.

Turns 1 & 2

Turns 1 & 2 want you to believe they are two separate corners, but the driving line around this sequence is a bit more complex then a simple double-apex setup as the shaded groove may suggest. The turn-1 apex does not truly exist as you sacrifice any apex here to line yourself up for the more important apex of turn-2. The line through turn-2 is also a 'sacrifice line' as you must set yourself up for turn-3.
Aim your car to the outside curbing at the exit of turn-1, easing of the steering to prevent turning in to turn-2 too early. The apex of turn-2 is at the second cone to keep your car to the full right. When done properly, you will be at full throttle from the turn-1 exit curbing all the way into turn-3.

Tim McArthur
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Posted by Tim McArthur at 11:39 AM on Sep 10, 2007
Post #3

Turn 3

Turn-3, when driven properly, can be done flat out. It will take practice with confidence lifting until you fine tune your driving line. Do not follow the standard-apex shaded groove as you are forced to slow by corner exit. Instead, continue the late-apex line, aiming again for the second orange cone as the apex of your corner. Your track-out point will be well after the exit curbing. If you are using the exit curbing at all, your turn-in point is too early.

Tim McArthur
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Posted by Tim McArthur at 11:39 AM on Sep 10, 2007
Post #4

Turn 4

Turn-4 is a very fast left-hand turn where missing your apex by only a few inches will cost you severely. You will need to breath off the throttle before your late turn-in here. By turning into the corner slightly late, aiming for the second orange cones, you are able to carry more speed through the exit phase of turn-4. This extra speed will translate into speed carried all the way into turn-5, which is a similar corner and line.

Tim McArthur
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Posted by Tim McArthur at 11:39 AM on Sep 10, 2007
Post #5

Turns 5 & 6

Turn-5 is similar to turn-4 with it's late apex to keep maximum speeds through the exit-phase of the corner. The exit point is not clearly marked and does seem to tighten up on you. However, it is very important to keep your momentum up by tracking all the way out before moving your car across track to setup for turn-6.
Turn-6 is one of the most enjoyable turns on the track when done right. This turn shows the advantages of a late turn-in and apex. Do not attempt to apex the first portion of the turn. In fact it is best to have your car roughly mid-track through here for better placement for the real turn of turn-6. Ideally, your car will drift left while coasting. At the moment you can see the second orange cone of the inner curbing you must turn-in sharply while applying maximum throttle. Late apex and late track-out makes this a full throttle corner which is extremely important as you have a long straight directly following. Again, just connect the orange dots for apex and track-out.
Turn-7 is simply a kink in the straight.

Tim McArthur
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Posted by Tim McArthur at 11:39 AM on Sep 10, 2007
Post #6

Turns 8, 9, & 10

Turn-8 apex adjustable, but we will maintain the late-apex line by connecting the orange dots. This straightens out the corner so you are still able to get a quick burst of throttle in before turn-9. You will be sacrificing Turn-9 to setup for turn-10 with a late turn-in and apex, but do not track out. You must keep to the right to be on the proper driving line for turn-10.
Turn-10 can easily be argued as the most important corner on the track. It is the corner leading onto the longest straight. Any advantage or disadvantage you may have in your driving line is magnified all the way down this long straight. With turn-9 sacrificed, turn-10 is simply connecting the orange dots with the late apex and exit while maintaining maximum corner speed and exit speeds. The 9 10 sequence will require a lot of practice, but it will be worth it.

Tim McArthur
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Posted by Tim McArthur at 11:40 AM on Sep 10, 2007
Post #7

Turns 11 & 12

Turns 11 and 12 are very similar to turns 9 and 10. The biggest change is that turn-12 can be taken flat out with the proper line. Sacrifice turn-11 to achieve this, just as you have been doing in turn-9.

Tim McArthur
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Posted by Tim McArthur at 11:40 AM on Sep 10, 2007
Post #8

Turns 13 & 14

Turns 13 and 14 are driven much like turn-6. Allow the car to miss the first apex to be setup for the second, more important, apex. Turn-14 can be taken flat out using a late-apex and is very enjoyable to boot.

Tim McArthur
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Posted by Tim McArthur at 12:28 PM on Sep 10, 2007
Post #9

Paddock Area

Posted by Michael Bush at 08:56 AM on Sep 11, 2007
Post #10

Very nicely done Tim! Thank you!