How To Drive Your Tires To Go Fast - /SHAKEDOWN University

[@Deviklovecraft]

By far the best episode of Shakedown I've seen. High density of critical information delivered in a concise, engaging fashion. Leo and the Drive production staff nailed the proverbial late apex on this one. More like this please !

[@ericwheep]

im a big fan of this show but i think this is one of the best episodes yet. everything is so detailed and perfectly explained. all the things that we all kinda know from experience, you put into words and methodology. great show, hope to see more like it.

[@JETZcorp]

This is great timing for an episode like this. I've been realizing that the front tires on my Dakota are burning off at an alarming (and uneven across the tread) rate, and I'm in the mood for hearing how to setup and drive the vehicle to make them last longer and get the most out of them.

[@BackGround909]

again a great explanation on tire basics and how to drive them - 1) Skip Barber Racing Schools sits you down for class room explanation on tire basics and how to that use info to your advantage 2) Bob Bondurant School of High Performance Driving - ditto thats just American schools if you are fortunate to buy a car in Europe, Peugeot/Renault to Maserati/Ferrari they offer schools to get the maximum usage out of them - not necessarily speeding down the road but handling that one off situation

[@drumminham]

Yep, thanks for supporting us. Quite a few of us love your show and the great info you put out!!

[@Dr_Xyzt]

I've got Allan Staniforth's "Competion car suspension." I'll be glad make another addition to the collection. My math model has the tire as a weak geometric body held in place by air pressure. Finding the contact patch area works. Camber changes the shape of the patch, and more sidewall makes the inner edge of the tire do this "arc" thing and loses contact witht he ground, putting the burden on the outside edge.

[@BleedForTheWorld]

Big difference, especially in longer race courses with many corners. In conjunction with tire pressure settings, as the video describes, each settings in unique to many race tracks as well. Monza and Laguna Seca are two good examples that I can think of right now. It is about trial and error.

[@AzuriteReverb]

Thanks Leo, great video. I hope you enjoy researching and teaching as much as I like to watch these.

[@slomotrainwreck]

I can't believe you fit all of that info in under 12 minutes, excellent job!

[@AutoBahnForever]

A Master's class in how to do it correctly. Using excellent driving techniques is key to improvement to the weakest link in any car,.......the driver. Thanks for the great overview by someone who did their homework (Leo Parente and his production group)

[@DIZAZZO]

Me too, i think i am the only brazilian who watch Drive and understand everything. I have just one friend who i can talk about racing because we are raised together and used to racing in track days. I started to learn your language by myself since i was 9 or 10 y.o, just to understand the magazines that my father bought and watch Top Gear and Motorweek. Here in Brazil, the automotive culture is not respected enough, we don´t have TV or Internet shows talking about it.

[@zomgz932]

"we are going to do more on setup on another show" HELL FUCKING YES! i'v been waiting for that statement since shakedown uni started.

[@IEatBears]

I like to watch Leo's hand gestures. It's basically a loop of a point, and open hand shake, the left-right move, and the break the handcuffs move. His hands just move independent of what he is actually saying.

Nice show, sir! I would like to see more videos like this in future. Thank you and keep up good work!

[@miyamotoclan5054]

It seems that you have good taste in music as well. I just found the name of the song at the end of the video using Shazam. It's called "Mas Grande" by Philip Pope & Sean Lyons. Good day.

[@roywhiteo5]

i love this, you should do a video on how to properly take advantage of modern traction control and stability systems

[@nastraightsix]

Great show as usual Mr. Parente! Any tips for anything in particular to look out for with run flat tires? My new-ish track car has them on for now & was wondering if I should vastly approach my setup and driving in a different manner.

[@FeintMotion]

The range of usable slip angles is much lower with RFT's than with normal tires of the same compound or intent. Slow in/fast out is pretty much the only way with them. Threshold braking and "diamonding" corners tend not to work out to well and will often cause tire shudder or chatter because the stiffer sidewall of the RFT rebounds much quicker and loads much faster than a normal tire does.

[@Navy1348]

You are not alone my friend. I understand your pain. And when you get to talking about it or trying to teach someone, they stop listening. So sad since motorsport is such a wonderful sport

[@EricRuzz]

camber will help with tire feel the more clear the tire feel, the more precise you can be with the car the more precise you are with your inputs, the more performance you'll get out of the tires

[@LeoParente]

Was F4, Ithinki. Will look at what you are referring, next time I have time in the studio.

[@Dr_Xyzt]

Your force is the weight on each wheel and your car's weight distribution will need to be known, or solved for with a piece of paper and a jack. Centripetal force will be your horzontal vector. For wide turns, the car has a low tangential angle to its turning circle, so you can assume linear duty per set of tires. Tighter circles require more information about the car, which needs to be found by integration, which is where I'm stuck. I know the bean shape is there, but can't reflect it.

[@OaNautilus92]

Thanks Leo. This helped a lot. Going to keep it in mind whenever i drive from now.

[@ivandag510]

more of this please... great job guys

[@Dr_Xyzt]

Do you have a link to some information on the topic? Here's my theory. More sidewall for the same diameter and width should flex along a larger radius with respect to the outer edge of the rim. This flex should counteract camber, and also "twist" the tire to some angle between the desired circular path, and the straight line that car would rather push towards. I'd like to make a proper mathematical model, but I'm having trouble setting it up.

[@LeoParente]

We looked at it. Too hard to capture on the vid and not really the friction circle data I wanted to share, nor the tire temp story. The point was 'control = speed / lower lap times'.

[@camlit13]

I am liking this new shakedown...good to have some driving tips...Thanks Drive

[@recca7]

agreed, looking forward to setup segment

[@PursuitofSpeed]

Excellent segment, more technical episodes like this would be awesome as a series.

[@Dr_Xyzt]

A lot of the dynamic things such as force distribution, slip angle, and tire deflection will require every little piece of information about the car, and a lot of time intensive effort with some serious computing power. It's true engineering.

[@Ultra80s]

Comfort & trust. If you don't feel it, all that glorious reviews means nothing. I honest feel these are the contributing factors when it comes to you vs friend and/or that person you dice with on given track/back road.

[@rjs15570]

Leo...just so this episode and again you nailed it. Thanks for the 20,000 ft perspective while tying everything together.

[@Dr_Xyzt]

Simple. Pressure = force* (area^-1), The vectors needed to make a circle lose magnitude with respect to the ground, so the tire will get mashed. This mashed surface will have vectors normal to the ground. I trust that you can work that equation. That area, coupled with the fact that the tire is a circle will allow you to see how much the tire smashes, and knowing conservation of length, you'll have to remember that under load, the tire will make a bean shaped contact patch.

[@Spearfisher1970]

Another thank you for doing it the right way - like a classroom - vs. the typical American entertainment way (you in a car, or at the track, or... ). Good focus, Leo, keep up the good work.

[@Dr_Xyzt]

I'm pushing the topic hard because I've got lots of sidewall on my truck, with some negative camber, and it still wears the outside edge. I know I've got some scrub issues, but if I goose the gas to keep the desired gear, the scrub goes away and I get proper turn-in.

[@timeluster]

What is the piece of music used at the end? Is it purpose built for this show or an actual song?

[@ramtruxguy]

I was able to find the song on the website (us audionetwork com). Search for the song Mas Grande by Philip Pope. You can listen to the full clip or purchase it for $1.25 for personal usage.

[@harly224]

I get it. So in the scenario where there's some understeer , what would the first recommended step to compensate for it? Said car is FF (front wheel drive)(front engine) where understeer is common-place

[@mike_hedlund]

Something else to keep in mind - the sum of grip when longitudinal and lateral are combined is higher than either one by itself. -mike

[@mpdesign1987]

best show so far, great stuff

[@gnoy26]

your best video yet man! good info...

[@nimodo4667]

I like Shakedown Uni more than others usually. This one was one of the best for me to watch. My question for Leo is how do I monitor this without a temp gauge and a short track like Autocross/Solo?

[@Squabenphlaben]

Leo! I love these videoes where you explain driving dynamics and how to improve performance both as a driver and on the car. But ther's a lot of expressions I don't understand and scenarios I don't have enough experience to ralate to. Can you make a crash course in racing expressions?

[@sford01]

Fantastic stuff, Leo!

[@ivanlai0225]

10:03 how do you monitor tires temp? is there a tool for that or something?

[@Tommy1198S]

I appreciate this video so much, thank you. Looking forward to a 'Proper Heal-and-Toe Technique' video.

[@KarmaMotorsportsTV]

Thank you for these videos, they just keep on getting better. Really good stuff for amateur track day junkies like me. Would have been useful about a week ago as I almost killed myself on the track (video on my page). Asked too much of my tires in less than ideal conditions. Anyways, keep these videos coming!!

[@sscups]

Another nice video, thanks Leo

[@EOHRyan]

What was the sim used? Forza or? You should list it in your video information! I liked the video, thanks.

[@efsf15]

outstanding video. i am going to go back and re-evaluate the set up on my car. :)

[@Lukos0036]

Do they have schools you can attend for learning this stuff?

[@MikeZ32TT]

Loe, you get the best commentors. Love reading them. So many great ideas/thoughts.

[@zomgz932]

at le mans when they pitted and changed tires they would shoot a IR them at the tires through the hole in the fender. im sure some one makes themo sensors for telemetry... given you'd most likely need to drop a few G's per wheel to get them.

[@harly224]

can slip angle's have anything to with understeering or oversteering???

[@Navy1348]

Thats awesome! We are a cult haha I say differential and my friends become so confused. My ex girlfriend didnt know what a spoiler was.....I dumped her shortly after hearing that. Its awesome to hear someone from Brazil so interested. I salute you sir

[@FlamerK6]

spot on as usual, leo

[@ramtruxguy]

What is the name of the song playing during the credits?

[@loose_unit]

Okay, that was a great episode! The advertising didn't make my eyes and ears bleed and you got me looking at Sim Raceway :-)

[@PinkertonMotorsport]

is that a prius on the friction circle

[@pablofan]

thanks, leo. great stuff.

[@recca7]

no, it's actually Chris, he gets the most views by a huge margin..this is my first time actually watching an entire shakedown segment

[@JoeJacksonGT3]

Forza Motorsport 4 has tire deformation as well. It's quite good. Not as good as a PC model, but for a console, it's top notch.

[@C60Olson]

Thanks a TON, Leo!

[@LeoParente]

I'm going back to the gym vs the tailor. Wait for it!

[@jwlevine100]

Hurry up with the set-up video!!!

[@TheWeberDK]

Thanks a lot :) Great stuff for simracing to.....

[@drumminham]

Awesome Info Leo, thanks much. Dan from US Army base, Bamberg Germany [formerly Yongsan Korea]

[@darek4488]

You forgot to add that although high camber is good for cornering it lowers the stability in high speed.

[@x3roluv]

Excellent show! One very minor suggestion, next time increase the volume of the simulator. Listening to the tires would have been easier to follow the explanation

[@LeoParente]

You are welcome. I see you are on the 'See-the-World-via-the-USA-Armed Forces' program. Honored that you are there for us. !!

[@MrChow]

Great video! Things I could NEVER explain to my friends. lol

[@RIDERsxv]

LFS is the only driving sim out there with realistic tire physics.

[@LOLHICRONO]

but yeah, good episode. educational and leo is always entertaining to listen to. i like it when he's either talking to the audience (be it jokes or education), interviewing someone entertaining, or out there thrashing a car around. i suppose the keyword is entertaining, for example the other tire episode was boring because the guy talking was like...yeah...@_@

[@saw4fire]

Everything here applies to tarmac driving. The rules are a lot different on low-traction surfaces, like dirt roads, or snow and ice.

[@DJzSith]

great stuff

[@wrighttool]

Thanks just what I asked for ! :)

[@lllukiosas59]

Very interesting!

[@nastraightsix]

Thank you PulletSurprise! ^_^

[@esnevip]

Amazing host!

[@nysid2007]

Awesome episode !!! Leo ~!!! You keep doin what you doin at one point you have a chance to beat Chris Harris's view count !! Learned alot Thank you ~ !!

[@limpkit2011]

Will Do Leo. *Thumbs Up

[@andyfim]

Thanks! Amazing how you can 'say" what others can not even show:)

[@LeoParente]

Does it help you if I say there are times I hate myself? Otherwise, jeez! Thanks for trying to create a /DRIVE insurgency. How's it going?

[@mp4f1]

Thanks!

[@ChrisKsan]

People need to be more open minded. You just gotta know what you want, what you're into. Does pushing the limits of going fast work for you and you prefer this type of thrill? Than things like this clip is your thing. You like driving awkwardly sideways and look out the window instead of the windshield? Than this video can only give you hints on how to improve your setup skills. Stop hating people! F1 is clean and smooth, rally is dirty and rough. Circuit racing one thing, drifting is another...

[@c4explosiv3]

what was that car in forza i couldn't here him

[@Dr_Xyzt]

You may also want to add even more negative camber if you've got lots of sidewall to keep a classic wheel/tire combo, like 245/60/14 on a Chevelle. I don't know who would race something like that, but hey, you take special measures if you're being promiscuous, why not do it for your car?

[@LeoParente]

Lancia 037 - street version of the rally legend.

[@AirGoya]

did a great job explaining and not treating us like we are morons, although cant speak for everyone

[@SmolSnake]

Driving instructors - an interesting blend of encouraging and condescending.

[@ErebosGR]

Leo, pls get Mike Kojima as a guest for an Shakedown University episode!!

[@JEZZ7]

Its because of Pirreli. They worked with Forza.

[@LowFlyinOK]

That's fine. This was about maximizing the tire. ...not wasting it.

[@V10Vantage]

Since this is a university, will there be exams?

[@emilblanco3305]

everyone should read How To Make Your Car Handle, talks a lot about the things leo mentioned

[@XDRONIN]

Leo Parente, I understood words and then "Friction Circle" (x_x) (I'm kidding - I'm kidding) Actually, to be serious for a sec., great show Leo P. and I will confess that as a frequent Sim driver (GO! SIMRACEWAY!)... I do have problems managing tires, specially while driving a front wheel drive car, So! Leo P. ... Can you please do a show regarding how to manage tires across all forms of wheel drive-trains? (FF - FR - AWD) or How to create the best Set-Up to manage all forms of drive trains.

[@jackbardsley]

that top right thumbnail at the end is messed up

[@ChrisKsan]

About the hella flush stuff... well those kids are simply not interested into going fast anywhere really. Just interested into looking cool. It's like people that hit up the gym and train and build muscles to look good and people that hit up a martial arts school and train and build up muscles to be functional and fight or people that do power-lifting. Each style has its objective it's purpose. It's amazing how childish human kind really is most of the time.... Stop hating! Grow up!

[@BackGround909]

PS who is playing that guitar - you don't give them any credit - please either a link or a name and tile to the music - so I can Google them Again thanks for the series on how to's

[@Xensphereify]

thanks leo :D