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      12-06-2020, 03:45 PM   #1
sdjro
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what did just happened?

So i was at the track on following conditions:
Outside temperature around 9C, track surface slippery and damp, car is M4 comp on stock 20inch wheels 666m with Michelin PSS tires, car on MDM, speed before right turn around 110 km/h, 3rd gear on manual(car is auto), when i started turning in for the right turn i feel that dsc brakes and car starts to oversteer.
What did i do wrong? after that i've tried to accelerate in the turn and the car will not become so unstable.

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      12-06-2020, 05:11 PM   #2
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Were you on the brakes when you initiated the turn? Given the conditions, your traction was already limited, so perhaps you were trailbraking too much relative to the available grip, resulting in the oversteer.
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      12-06-2020, 06:05 PM   #3
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Holy smokes that's nuts!
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      12-06-2020, 09:35 PM   #4
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Looks like rear end was unloaded and the steering angle was too much for the speed you were carrying? Try to be on maintenance throttle earlier.

Had a similar oversteer situation in my E36 M3 with no traction control. I think i wasnt early enough on the throttle maybe. Also think my rear tires may have been overheated, it was the 9 or 10th lap of the session. Also using PSS tires.
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      12-07-2020, 02:16 AM   #5
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Quote:
Originally Posted by jfritz27 View Post
Were you on the brakes when you initiated the turn? Given the conditions, your traction was already limited, so perhaps you were trailbraking too much relative to the available grip, resulting in the oversteer.
I wasn't on the brakes, that is why is so strange, but i think i had too high speed for the giving track condition
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      12-07-2020, 02:18 AM   #6
sdjro
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Quote:
Originally Posted by hC1001 View Post
Looks like rear end was unloaded and the steering angle was too much for the speed you were carrying? Try to be on maintenance throttle earlier.

Had a similar oversteer situation in my E36 M3 with no traction control. I think i wasnt early enough on the throttle maybe. Also think my rear tires may have been overheated, it was the 9 or 10th lap of the session. Also using PSS tires.
Yes you are right, and i also should be more gentle giving the damp conditions.

Ps i think our gloves are to be blamed

Last edited by sdjro; 12-07-2020 at 02:42 AM..
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      12-07-2020, 02:47 AM   #7
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I think probably just relatively cold temps, tyres not working properly and as a result low grip. Temps <10C it is hard to get the tyres up to satisfactory operating temps
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      12-07-2020, 06:52 AM   #8
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Classic case of trailing throttle oversteer followed by insufficient and too slow counter-steer.
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Last edited by CanAutM3; 12-07-2020 at 07:52 AM..
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      12-10-2020, 07:28 PM   #9
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Quote:
Originally Posted by CanAutM3 View Post
Classic case of trailing throttle oversteer followed by insufficient and too slow counter-steer.
Yes. I believe this is it.
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      12-10-2020, 09:06 PM   #10
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You kinda diagnosed it yourself... slippery and wet. In those conditions you have to drive entirely different and give the car a chance to settle between inputs.
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