First trackday at Oulton Park 08/08/07
Discussion
Got my first ever trackday booked for tomorrow, on the morning session of a novice day so I hope I don't get in anyone's way. Anyone of here going?
I've paid the extra £25 for the instruction (something like 20mins with the guy telling me what lines and braking points etc.)
Taking my 964, it was in for a full service just a couple of weeks ago and they said it was in fine health. Was just wondering about any other (probably obvious) preparations I should do to the car before? Someone once mentioned dropping the tyre pressures a bit but by how much?
I've paid the extra £25 for the instruction (something like 20mins with the guy telling me what lines and braking points etc.)
Taking my 964, it was in for a full service just a couple of weeks ago and they said it was in fine health. Was just wondering about any other (probably obvious) preparations I should do to the car before? Someone once mentioned dropping the tyre pressures a bit but by how much?
You do not want to drop your tyre pressures. What you have to take into consideration, is the pressure of your tyres when the tyres have heated up after a few quick laps. Also they will heat different amounts, depending on the type of corners on the circuit. Mainly R hand corners will heat up the L side tyres more than the R side tyres and vice versa
So what you have to do is take an accurate tyre pressure gauge with you. After a few laps check your tyre pressures. Then bleed out air or add air so that your tyres are at the desired pressure, which should be 4 or 5 psi higher than you use for road driving. The extra pressure stiffens up the sidewalls.
I think what people mean by letting out a little pressure, is that generally you will have to let out some air to compensate for the high temperature - Boyle's Law and all that Physics.
I take an accurate tyre pressure gauge and a good foot pump. You will have to add some air once the tyres cool down, so that you can drive home safely.
So what you have to do is take an accurate tyre pressure gauge with you. After a few laps check your tyre pressures. Then bleed out air or add air so that your tyres are at the desired pressure, which should be 4 or 5 psi higher than you use for road driving. The extra pressure stiffens up the sidewalls.
I think what people mean by letting out a little pressure, is that generally you will have to let out some air to compensate for the high temperature - Boyle's Law and all that Physics.
I take an accurate tyre pressure gauge and a good foot pump. You will have to add some air once the tyres cool down, so that you can drive home safely.
milleman said:
Was there last Weds, fantastic fun-enjoy it. Will book some training when I'm there next time-I am sure it will be worth it. One or two people last week were booking two sessions, one early and one last thing to let the instructor monitor your progress.
I was the instructor working on the day, and I had a couple of sessions with various people, .... as you say one early and one later in the day. It definately helped them to understand the basics of track driving. I will be there tomorrow just instructing, not briefing. If I can be of any help to anyone that is new to trackdays, or to the circuit, feel free to ask me whatever you need to know. Look forward to seeing you tomorrow, Howard
Had a great time, kept the tyre pressures the same as normal. The car coped fine, noticed the difference with warm brakes and tyres that I don't get on the road. Was really getting into the grove near the end of the session and wasn't getting overtaking as much! Was amazed with the limits of the car, and how hard it was to provoke the C4. Even my GF remarked that I was driving smoother of the way home. Worth every penny, looking forward to the next one.
Gassing Station | Porsche General | Top of Page | What's New | My Stuff