Why PROS are 1s Faster [WATCH THIS FOR FIX] 

Thanks Lew!

Yes I've been making daily sacrifices to the YTalgo and it's working. Thanks for finding me!

I had the exact same thought.

Thanks. That goes for any practice too. I talk about it in this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-pFch6d_5J2o.html

It's one that took me a while to figure out. The key is to keep the car at max grip usage - forcing the car into the apex doesn't do that.

Thanks for saying that! I personally have trouble starting videos that are over 10mins long, so I try to keep min within 5-10 mins whenever I can!

Thanks! Let us know if it was helpful!

Those are my goals! Thanks!

Hah! Funny enough when I instruct IRL, I give homework too!

Thanks!

Yes, what you're referring to is an intentional margin of safety - that is knowingly leaving a specific amount of space from the track limit, which I recommend to all the drivers I work with, but as little as possible. A LARGE majority of people unknowingly leave space, and even when they know, they leave too much and more than they need to. To minimize the margin of safety is usually a matter of precision and consistency, it can be trained within a week or two if a driver puts the effort into it.

Thanks! Yes as you said, a lot of things come into play. Using a curb is really trading less grip with a larger turn radius. Without detailed tire models and track specs, the only way to know if it's faster is to try it out. Just keep in mind if you do try using a curb, you need to change everything, brake point, turn in, entry speed, apex, etc. It's no different than if there's a bump on the racing line; do you change the line?

Yes, everything changes, it was more of an observation from my side. It is for sure a lot of trying :-). The curbs are really tricky business for me. Probably as much a mind thing as a real thing. I deeply dislike the car 'bouncing' that goes with it as it feels so out of control, even when it is not really (mostly). An example of curbs I dislike are the two chicanes at Zolder in ACC (Kleine and Villeneuve). To do good times one has to go over them them but small differences/mistakes in speed or line (going on a sausage) can really ruin things. When it goes good one sort of 'fly' over them and when it goes bad it can be very bouncy. In general being consistent when curbs are involved is just hard for me. In ACC, curbs are probably the main reason I do much better in rain races (compared to similarly unskilled drivers) than in the sun. As with everything it is a matter of practice and try to suck up every piece of valuable knowledge people like you are so kind to share.@@LastTenth

@@peterbrorsson5714 Using harsh curbs takes a loot of precision to be consistent. The aliens do it really well. Can you tell us more about your comment regarding you using curbs in the rain in ACC?

Thanks Volker! It's good to see you here!!

I don't but that's a really good topic to cover. I actually took quite a while to learn how to mentally make that switch. I'll add it to my list to do - thanks for the idea!!

I'm not sure I understand what you mean by free telemetry, but does this help? How to copy a 7k rated driver [Telemetry HOW-TO Basics] ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6C0iDianTiI.html

Thanks for the sub and sharing my vid Paweł! Only having looked at your reference in the video, the reason is because when one tire goes onto a loose/slippery surface, it's ability to generate any (longitudinal or lateral) force greatly diminishes. That outside rear tire suddenly lost it's ability to generate sufficient (centripetal) forces to keep the rear axle moving with the same turning radius, thus the rear will start to move in a more tangential trajectory (larger radius), than before, while the front continues to move with the same (smaller) turning radius as before. The result is the car spinning 'into' the corner.

@@LastTenth Thank you. It wasn't clear to me why in such cases the car almost always spins away from grass, if you lose grip it should go either way depending on which way the car is trying to turn at the moment, and whether the front or rear tire lost grip. I guess the explanation is that these incidents most often occur on the corner exit, and even if elsewhere, the driver is instinctively trying to steer away from grass. Plus it is probably easier to put the rear than the front tire on the grass, in some cars just because the rear track is wider. Or, the rear is more likely to lose grip if it is additionally loaded by power application. At least that's what I am thinking now.

@@pawelkusmierek109 No problem! Track width is a factor but imo it's mostly because any slip angle will cause the rear to be further 'out'. When a car looses grip, front or rear, it will always move towards the 'outside', because it generates less centripetal force and so the turning radius has to increase. I think dipping a tire on the outside of the track can happen on entry or exit. it really depends on the driver among other things.

​@@LastTenth Sure, I meant that if you dip say the rear right then it loses traction and the car spins to the left. I was wondering why I usually do not see the someone put only on the front tire on the grass and then understeer to the right. Thanks for pointing out a reason why the rear would be further out.

@@pawelkusmierek109 If someone puts their outside front onto the grass on the outside, the car will understeer to the outside.

Thanks Mitch! You've raised a very important point, one that is coincidentally a topic of the upcoming feature video I am working on. Without giving too much away, the answer to your question is: True, and it's *very important*. Needing to track out to the edge of the track, because the grip of the car will not allow you to do otherwise, is at the core of minimizing lap times. I would go so far to say that even if the limit of adhesion does not take you to the track limits, it is beneficial to do so (in most cases). Sure the speed will be low (and that's a different problem with a different solution altogether), but driving out to the edge will create familiarity so that when the car needs to go to the edge, the driver is fully comfortable and well practiced. It also works the car less hard when exiting under grip limit to the track edge, instead of exiting at grip limit and not to track edge; the latter will use more tire and elevate the risk of making a mistake. Why drive at 10/10 instead of 9/10 if the result is the same speed? Some will argue that if the car doesn't need to track out fully, it will indicate that speed is too low, and that's true. But you can track out fully and still find out if the speed is too low with certain techniques that I coach all the drivers I work with.

@@LastTenth Thank you for another excellent explanation. (you really have a knack for this) I'm a long time autocrosser so we don't ever get to really learn a track. (only 3 runs per day). In autocross, looking ahead and judging how much speed you can carry, and how much braking is required for each corner is much more difficult, but this answers a question I've been wondering about for a long time. Thank you again and I look forward to the next video. 🙂

@@mitchlewis535 Hey thanks! I actually started with autox too! The caveat of my answer is, what I said typically applies to "plain vanilla" corners, and in autox, that's rarely the case. Autox is typically filled with compound corners and high grip variance - far from plain vanilla. But the same fundamentals apply - to know the optimal line though a compound corner, a driver must know how to figure that out for a plain vanilla corner.

@@LastTenth We have some corners like that frequently. We can them "turnarounds". They are tight 180-degree corners. Thanks!

I'm not familiar with Hallett. Yeah, there will always be fringe cases, especially when it is a complex, but for the most part the line should be as straight as possible, whilst using as much room as available for acceleration.

a=v^2 / r, but the speed needs to be in meters per second. So acceleration induced by turning is just below 1G.

LoL. Pls share your stories.

when you think about it, that is exactly how aliens get those insane laptimes, they put it right at the last millimeter before exceeding track limits, in every corner, on every lap. i think i need to slow down to become faster, pushing to hard and making those costly mistakes doesnt help with muscle memory and hand-eye coordination.

I agree. It's always very easy to overdrive. I often set the best laps when I'm not trying that hard - laps I couldn't repeat no matter how hard I tried...