Slow in, Fast Out is a myth

A lot of people talk about "fast in". But actually this is still "slow in" because the slow refers to the fact that it's slower than a line that allows a faster entry (at the expense of the exit).

One way to think of it is that slow in fast out doesn't refer to your actual speed. It refers to a line choice. If you are able to do "fast in", that is only because you weren't already at the limit. You weren't slow in before, you were "too slow in", ie not on the limit.

Another way to think of it is to realize that this applies even for flat out corners. The amount you turn the wheel at entry determines how much speed you are going to scrub. You generally want a sharper turn in, with more speed scrub at entry, and a later apex. This straightens out the exit, makes the run to the next corner longer, and delivers more power to exit acceleration and less to scrub. An alternative line is to turn in earlier and less, apex earlier, and unwind slower. That line is faster in but slower out.

 

Bingo!

 

hey! no P&R in the racing section!

unless you brake when you see God!

 

I think you Americans use different terminology than the rest of us, that's all.

 

from now on, refer to the "apex" as "Tim Horton's" so the Canucks can follow along.

 

Tim Horton's? What is that?

 

completely agree with your posts here, or as rob calls it, the ''language'' .

When I learned this in simulation racing about 8 years ago it really opened my eyes. I taught a friend this recently and he applied it in enduro motocross in his next race, and finished 2nd instead of his usual 5th-8th.

 

Ah, well my post was a bit irrelevant then.

That's a pretty cool graphic.

All the best,
Andrew.

 

This track made enough of an impression on you during your youth that here we all are today.

 

Good answer and I agree. Coming from racing karts, the pro's are on the brakes later, off of them sooner, unwind the wheel sooner and therefore on the throttle sooner. Your reference to backing in, is true for karters. Backing in the car( but not over rotate, scrubbing too much speed) allow the car to be straighter sooner and in result your on the power earlier.