Miata Mailing List: March 1994, Message #146

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From: Al Jenab Subject: RE>Re: RE>Re: Physics Date: Fri, 11 Mar 1994 09:06:55 -0500
Barry writes: "However, I have found that keeping the foot on the throttle and using the left foot on the brake can get you out of a jam without unloading the rear too much. Yes, the brake will tend to unload the rear but you can control how much brake you use and will have more effect than just lightening up on the throttle. I have not quite figured out how to heel and toe in my car without breaking my ankle! :-)-x (legs tangled trying to heel and toe)" Absolutely. This is called "left foot braking" by racers and it's an excellent technique for keeping wheels properly loaded in all sorts of situations. Warning!!!! Try it far away from obstacles until you get the hang of it. You generally want to use it to load up the front wheels (prevent too much weight transfer to the rear) under acceleration, through corners or when cresting a hill while accelerating. You can also use it as you say to prevent too much transfer to the front under adverse conditons, but you're really doing "right foot acceleration under braking". It's a fine point, but you're using the throttle to keep the rear wheels loaded when conditions require slowing down or reducing oversteer as opposed to using the brakes to keep the front loaded when conditions demand acceleration or reducing understeer. Another point, everyone probably knows this, but heel-and-toe for most people is truly a misnomer. It's really outside-edge-of-foot and inside-ball-of-foot. When I "heel and toe" in the MIata, the ball of my right big toe goes on the edge of the brake pedal and I blip the throttle with the outside edge of the same foot. For you karate nuts, it's just like doing a side kick. It's not too difficult to do with my build (5' 10"), but taller or longer-legged people might get their right knee tangled in the steering wheel. -Al PS: Can't tell I'm getting antsy for the track season to start, can you?

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