I wouldn't hammer it for 2 hours straight!
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That's the good thing about open pitlane format track days
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- you enter and leave the track on your own schedule.
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Personally I wouldn't do much more than 20 minutes at once
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- do a cooldown lap
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(very important) and give the car and driver a bit of a rest.
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The one time I pushed this to 30 minutes, I cooked my alternator
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Something may break
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- any weak point on the car will be stressed more than normal.
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Make sure your critical components are all in good condition!
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Cool down laps are important
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- if you dive straight into the pits, park up and turn the car off, the temperatures of everything will increase rapidly as there's no airflow to cool things down.
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This can actually break stuff.
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So, when you want to come in, just do one more lap
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(half a lap at Snetterton 300 will be fine, it's a long track) where you take it a bit easier, to allow the car to cool down.
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Obviously be mindful of others who aren't on a cool down.
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Don't go 100% attack straight out of the pits
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- ease into it, especially on your first trip out.
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It's open pitlane, you have plenty of time to learn the track and enjoy driving on it.
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It's not a race against other people or the clock.
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Unless you are running track spec pads/discs and good DOT5.1 fluid, your brake performance will drop when they get over a certain temperature, so be mindful of that.
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If you start to feel that happening, ease off, and allow them to cool down.
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If you currently have DOT4, replace it with DOT5.1 DOT4 will boil very quickly.
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