Understeer Scrub Speed Drill

Colin Mullan

Car Racing

Instructions

Pick a corner like laces of the boot at Watkins or turn 6 at Road Atlanta (long duration sweepers with a short brake zone into the corner) and pick a brake release point not long after the turn in point. From there play with entry speed until the car starts to understeer. Your goal is to use that understeer to scrub off the last few mph and still hit your apex, initial throttle, and full throttle application points.

Focus areas

Primary

Use the understeer to scrub the speed

Secondary

Slowly work up until the car understeers

This helps with:

Track Fundamentals Increase Entry Speed

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About the coach

Colin Mullan

2020 GT4 America Champion

Car Racing

I’ve been racing nearly my entire life, with experience in everything from open-wheel racing, touring cars, to GT and prototypes. In 2020 I won a GT4 America Championship driving with Andretti Autosport, and have been recognized as one of the most winning drivers in GT4 racing in the US. My goal as an instructor is to teach you the “how and why” to improve as a driver. It’s easy to tell you what to do to be faster, but becoming a better driver on track takes more than that.

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