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Old 12-04-2018, 12:39 PM   #1
steved0x
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Join Date: Dec 2012
Location: FL
Posts: 4,144
Tricky corners, how to know when to stay in 3rd and when to go into 2nd

I posted this on rennlist, but there are not as many Boxster folks there...

In my 2000 S 6 speed, there are a few corners where I am not sure whether to stay in 3rd or go down to 2nd, like T7 at Road Atlanta or T12 at VIR.

In both of those corners, I seem to consistently have a vMin of 40 when I drop down to second, and vMin of 43-44 when I stay in 3rd. But my best lap time at each track was set when I dropped to 2nd, but because of traffic and other things, I don't feel it is as simple as that (aka I still don't know if 2nd is better). And I don't know enough about data to look at it and see. I do have an AIM Solo DL that I have been using and so the data is there once I can learn to use it. For now I mostly use it for lap times, predictive lap times, and data overlay for videos.

T7 at Sebring (vMin 36) is a no brainer to go to 2nd, but on some of the other corners it feels like it is right on the borderline between 2nd and 3rd, but by staying in 3rd and learning to roll more speed, I feel like staying in 3rd is the right choice.

T3 - vMin 53
T10 - vMin 49
T13 - vMin 55
T16 - vMin 55

Next time I go to Road Atlanta (T7) or VIR (T12), I wonder if I should focus on:

Roll more speed and leave in 3rd
Try and roll more speed, and don't overslow as I go to 2nd

What strategies do you like for knowing when to try and roll more speed in a higher gear, or to get the downshift so they can pull better after the corner? Do you have a target RPM that if the corner takes you below, you like to get the lower gear?****

Thanks!

​​​​​​​Steve
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