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Old 05-25-2018, 07:08 AM   #1
cueball89
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Autocross, wet vs dry times?

Three of the four events I've done this year have been wet in the morning and dry in the afternoon. What's a good delta between wet and dry runs in autocross? I want to know if i'm pushing hard enough in the rain. I have about a 4 second difference between my wet/dry runs. I know wet is ambiguous and highly variable. Wet pavement no standing water are the conditions I've seen this year. Car is DS BRZ on new RE71R's course lenght has been in the 50-60 second range.
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Old 05-25-2018, 08:46 AM   #2
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I just reviewed data with drivers I know to be particularly good in the rain and see a 4-5 second delta on a high 50 second course (dry).

C
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Old 05-25-2018, 08:47 AM   #3
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I want to know if i'm pushing hard enough in the rain.
If you have to ask the question, you're not pushing hard enough
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Old 05-25-2018, 08:48 AM   #4
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I'm definitely not a top PAX driver, but I was able to get within ~2 seconds of my fastest dry time in the wet (full wet, but no standing water) on a ~40 second course at NCM several weeks ago. The steering and cornering grip were great, I just couldn't put power down very well coming off the corners.

That surface is fairly grippy in the wet, so I'm guessing that's a significant factor as well.

[ame]https://www.youtube.com/watch?v=IgSawA10Krk[/ame]
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Old 05-25-2018, 10:00 AM   #5
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Three of the four events I've done this year have been wet in the morning and dry in the afternoon. What's a good delta between wet and dry runs in autocross? I want to know if i'm pushing hard enough in the rain. I have about a 4 second difference between my wet/dry runs. I know wet is ambiguous and highly variable. Wet pavement no standing water are the conditions I've seen this year. Car is DS BRZ on new RE71R's course lenght has been in the 50-60 second range.
If you're not struggling to hold onto it/hit your intended marks in a few spots, you left time out there.

Go for snapshot in time/pax position by run. We can't do that at CNY, but FLR and WNY probably can support it with live timing. You're good enough that there's no reason to not be out front at all stages of the day at a local, provided you're not taking cones and spinning and such.

Still up front? Probably pushing hard enough. See you next weekend.
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Old 05-25-2018, 01:04 PM   #6
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I just reviewed data with drivers I know to be particularly good in the rain and see a 4-5 second delta on a high 50 second course (dry).

C
That's what I'm seeing from the first few events out here as well.

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If you have to ask the question, you're not pushing hard enough
Fair enough lol
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I'm definitely not a top PAX driver, but I was able to get within ~2 seconds of my fastest dry time in the wet (full wet, but no standing water) on a ~40 second course at NCM several weeks ago. The steering and cornering grip were great, I just couldn't put power down very well coming off the corners.

That surface is fairly grippy in the wet, so I'm guessing that's a significant factor as well.

Putting power down is definitely more challenging, I have to be a lot slower with the right foot. I find large sweepers to be much more difficult.
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If you're not struggling to hold onto it/hit your intended marks in a few spots, you left time out there.

Go for snapshot in time/pax position by run. We can't do that at CNY, but FLR and WNY probably can support it with live timing. You're good enough that there's no reason to not be out front at all stages of the day at a local, provided you're not taking cones and spinning and such.

Still up front? Probably pushing hard enough. See you next weekend.
It's been pretty consistent for wet dry pax placement except for last weekend at the depot. Mainly the focus rs's put a lot of time on me in the wet. I was a half second off in pax but I was able to raw time them in the dry. I was under driving a bit in the rain that day I think.

Definitely looking foward to next weekend!
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Old 05-25-2018, 03:03 PM   #7
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Putting power down is definitely more challenging, I have to be a lot slower with the right foot. I find large sweepers to be much more difficult.


It's been pretty consistent for wet dry pax placement except for last weekend at the depot. Mainly the focus rs's put a lot of time on me in the wet. I was a half second off in pax but I was able to raw time them in the dry. I was under driving a bit in the rain that day I think.

Definitely looking foward to next weekend!
Looking back at your fast time video for that, I'm not sure I'd put a lot of stock in getting dragged by an RS. That's still a drying surface, and there's a couple spots where they can let the skinny pedal do it's much more impressive thing, while you still have to ease in. And then have less than half the torque helping out.

But those few small wiggles you have on the back side are about the level I go for.

Just my thoughts, though. You're raw-timing me, too.
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