Physics of Racing

Instagram: Physicsofracing
UBC Sports Car Club hosted lecture on the physics behind racing and car set-up. I will ultimately evolve this lecture into a multi-part series for online delivery.
Two short videos have been trimmed out of the lecture for copyright reasons. The impact on the content should be very minor. Links to the original videos are provided at the end of this intro.
Please sign up at physicsofracing.com/ if you'd like to be notified when the course offerings become available. I hope to be able to develop at least the first of these in 2022 - thanks for your patience. I hope to include many elements left out of this lecture, including some material on powertrain, engine tuning, aerodynamics etc.
In the meantime, I've created an IG account - Physicsofracing - to answer any questions people may have on car physics. If you have a question, tag me in your post and I will try to answer, or DM me with a question.
Please forgive any errors and usage of a broad range of material from the internet. If you have any comments or spot any errors, please do email me at [e-mail] and put "Physics of Racing" in the subject line. Thank you to all who provided material for this lecture, and special thanks to Ferrari for use of their Pilota Corsa slides.
Trimmed videos:
Sebastian Vettel 2017 Singapore pole lap
www.youtube.com/watch/RhM_04g...
Ari Ventanen near miss (at 2:03)
• "Oh Dear God" Ari Vata...

[@integrantedavidanoturna]

I only absorbed around 20% of what he said but I managed to get 4secs off on racing simulators just by watching this. Awesome video.

[@t3hgir]

good, focus on braking points. That's where noobs lose lots of time :)

[@alexsharp9813]

This is literally the best lecture on racing physics I have ever seen. Thank you Sir.

[@zonghanlee776]

@Vladimir Putin bruv where did you go bruv

[@datNERO17]

Its the only lecture on racing physics you have seen lmao

[@dmor6696]

@@datNERO17 ahahah you just saved me the trouble

[@pbuzzi]

@@zonghanlee776 qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq

[@lookoutforchris]

This is literally the most ad filled video on KZbin. Every 3 minutes there are 8 minutes of ads. I have to skip shit so often I can’t watch this while I do something else.

[@nilskoesters5347]

It's midnight on a friday and I am watching a lecture... I think this means this is pretty interesting to watch. Real good job sir. It's real fun listening your lecture :) Thank you

[@martinarbe1]

Same lol, 2 am and a beer and a joint. Very well invested Saturday imho

[@Deus_1]

Same, one week later :)

[@roddydykes7053]

1:30am Sunday for me

[@tmyfatmufo]

@@Deus_1 same lol saturday 1:50 am só Friday started lol

[@zachbargo]

midnight on a friday for me aswell😂

[@MrDrivingFaster]

I don’t know if I have ever seen somebody who knows the physics and knows the racing empirical knowledge so well. Great content

[@ZachBZera]

I know this is old but I would also like to add that he has the teaching skills to explain it in an easy to understand way

[@TomatDKProductions]

@@ZachBZera best teacher ever

[@muhammednoufal2972]

Oh oh o go

[@stanbunicu]

@@muhammednoufal2972 de a se poate in JJ JJ watt JJ JJ JJ. John in

[@stanbunicu]

@@ZachBZera are going out for

[@oliverhardin1413]

This was an incredible experience. I just sim raced with a bunch of new friends to racing and I have no idea how to explain what I feel when driving. I’ve come up with vague concepts for it all but none of it made sense to them. This video was crazy because he was literally explaining everything I never knew had terminology for 😂

[@TheATLTengu]

Dude a year or so later and I'm now seeing this video. Can't lie I wish you just sent me this because this is the first time I've understood the physics of racing lmao

[@pozkodeth]

I shit and piss @@TheATLTengu

[@michielvanstaden2698]

I love this, the MR2 joke blew my mind.

[@decoduck]

26:05

[@user-pc7xo6pb7k]

@@decoduck man's doin god's work. Appreciated it

[@johannessergio7725]

Maybe thats the name really came from🤔

[@davidcito739]

MR2 actually stands for: Midship Roundabout 2

[@intelsilver]

@@davidcito739 Wasn’t it Mid-engine Rear drive 2 seater?

[@recca7]

I fell asleep while KZbin was playing in the background and woke up into this🤯 thank you KZbin gods 🙏

[@vancedgalaxytab331]

This is pure gold for a car enthusiast/engineer like me. Gives me a much better understanding of what I should be doing on track. Thanks for the awesome lecture👊👊

[@ianconn951]

Thank you for this. I can never find anyone in the car world (irl) who thinks about automotive engineering from a math perspective. Amazingly dense and informative.

[@BradsHacks]

I doubt you were talking to automotive engineers then lol

[@johnkodera9926]

Hard to find people with proper background. Everyone thinks they are the expert but sadly is it rarely the case.

[@DizzyD2]

bro no way you said no one thinks about engineering from a math perspective? lmao so dense

[@apoxalypsewhen]

@@DizzyD2 i think he meant racing like driving in a math perspective

[@Madoomabusa7410]

I was about to say I have the same issue but Im a automotive, mechanical and systems engineer lol

[@abicol6010]

As a physics major and a sim-racer I loved this. How have I not found this till now

[@TanmayPanchal46]

For someone who has been visiting tracks for years, this lecture has been a very educating. I was instantly able to relate with the practical driving techniques we have been taught. Amazing stuff..!!

[@MrToshiba10]

For the Vettel onboard video it should be noted, that in F1 onboards they never show you how much percent of the maximum braking force is applied unlike for the accelaration, so they only show when braking is applied (I think because it is so crucial for laptime, the teams don’t want to show this metric to their opponents). This should become obvious if you listen to the rest of the lecture, but it still might cause some confusion, if you are not aware of this fact. In Le Mans broadcasting this year, they also showed how much braking is applied, which kind of suprised me.

[@MrHaggyy]

At the F1 level you actually don`t know how much braking force you can apply- as it highly depends on the tire, surface, and temps. Also, the pedal is way more pressure-sensitive than position-sensitive. The way you can move the pedal is highly correlated with the way the caliper has to move the brake discs. The actual braking is dosed by the amount of force your leg puts on the pedal.

[@ugn669]

If you sign up for F1 on their website you get access to full live telemetry, including throttle and braking.

[@maxlundquist]

@@MrHaggyy all of what you are saying, including the fact that it’s dependant on pressure, applies to any car

[@MrHaggyy]

@@maxlundquist yes it applies to any car but depending on the geometry of the hydraulics and how the brake booster works you can have more or less of it. My VW Golf has 3-4cm from light braking to looking up and it`s barely any force required to look them up. In Formula cars, you work with 1-2cm some even prefer no movement at all and the pedal force is equivalent to anything between 100-300kg.

[@thecompanioncube4211]

@@MrHaggyy I was watching an interview the other day of a car journalist (?), who is not a small stature guy, got to drive an actual F1 car and when he sat in the seat they asked him to push the brake as hard as your life depends on it and the engineers said it was impressive that he achieved 70% brake force... F1 drivers are almost superhumans

[@dankbuds6171]

Thank you so very much for this! Having been dropped out of high school,my mathematics limits me from further understanding of how to properly balance and setting up my vehicle for racing and cornering. This where stuff learned in school can be really useful and applied to the real world. I will be bookmarking this video and watching it over and over again. Thank you again Sir Marziali for this wonderful video! 👌👍👍

[@jorgesanchis5477]

isefull only if you like racing and i think its not the most usefull thing

[@CrankyBuddha]

@@jorgesanchis5477 Understanding the traction circle and the way grip works is absolutely useful in every day life if you drive a car or ride a motorcycle. Perhaps unintuitively, being a good racing driver will make you better at driving normally.

[@d35p0]

Reporter: So why did you crash today? Professor: I didn't have enough traction budget

[@kennyg1358]

I'm fascinated with how athletes intuitively discover physics efficiencies. The brain and nervous system are amazing partners.

[@midslam]

The most in-depth, informative video on weight transfer I've ever seen. And I've been studying the craft for some time now. Thanks mate, much appreciated. Will allow me to dial out some minor issues.

[@angelmercado3930]

Excellent video, make me remember my college days. Im a mechanical engineer and participate on amateur track time events and tune my own cars. No matter if the person go into racing or not, but it helps to avoid car accidents for daily drivers.

[@manveerghuman5276]

This was incredible, needed so much! We need more people passionate in racing.

[@SimRacing604]

This was a phenomenal lecture. Thank you for sharing it

[@thebreach4650]

Hey Mike ! What a pleasant surprise to see you here !

[@SimRacing604]

@@thebreach4650 hey hey! It’s an invaluable lecture for a sim racer like me!

[@claytonep797]

Wish i have a teacher like this....

[@iissnnzz]

this helped me a lot trying to understand weight loads and relative angular moment understeer, honestly I can't thank you enough, this is a pure gold mine! I will be recommending this video for sure

[@brucerobertson5919]

Great content in this lecture, but I have to pull you up on one thing (just to be picky because I teach this stuff too). There is a common misconception that "pitching forward" is creating the longitudinal weight force (or rolling is causing the lateral weight transfer), and at 33:33 you mention the front springs "generating a force" to balance the moment. Actually it's the tyre contact that generates this reaction force, nothing directly to do with the springs. The springs are just the messenger as they transmit the elastic component of that weight transfer. For those that don't believe this, imagine a car with the springs replaced with a block steel... the weight transfer happens (very almost) exactly the same, but there is no spring to "generate a force", nor to allow any "pitching forward". This is sort of like how a racing kart works, where the only spring is the tyre, but there is still plenty of weight transfer happening.

[@Andremarziali]

Thanks! You're right of course - I was simplifying to some extent to keep the discussion short. Yes, indeed the reaction force is generated at the contact patch of the tire, and transmitted to the chassis of the car through the suspension members and through the springs (or just the suspension members in the case of a kart). Interestingly, it is not necessarily true that the entire normal force at the tire be transmitted through the spring, as the various suspension angles may cause some of it to transmit directly through the control arms. Caster angle can also increase the force applied to the springs, so the relationship between the compression force at the spring and the normal force at the tire is complex. What I calculate (approximately) is indeed the normal force at the tire, which is related to the spring force by geometry in the steady state regime. The dynamic regime (where the dampers play a role) is also really interesting, though out of the scope of that lecture. For me, the real point of that discussion (and personal epiphany) was that the CG height has a strong impact on the degree to which a car will feel trail-braking effects. I'll be revisiting all this in my new lectures whenever I manage to get those recorded - hopefully in the next few months.

[@brucerobertson5919]

​@@Andremarziali Yes, another way of looking at it is that if the pitch center and COG were coincident there would be no spring compression, but still weight transfer. Anyway I really enjoy your intuitive approach based on physics knowledge and driving experience, and have learned a couple things. I'm still not going to roof chop my M3 though :-)

[@Mario-ox1wc]

@@Andremarziali Your explanation made me realize why trail braking is such a strong effect in motorcycle racing, they have a much higher CG as a proportion of the wheelbase. The understeer effect is also very strong when applying throttle though it can be greatly tuned by adjusting the rear swingarm angle in order to work with or against the the rear spring. I think that works by altering the CG but the relationship is not clear to me yet. Must learn more.

[@rudysuarez7670]

This is a must watch, applying these concepts on the track and the backroads. *QUALITY*

[@naggorski]

Cornering with the best of them after this. Thanks Andre! Best of luck with your racing!

[@Nevertrustalawyer]

I ride sport-bikes, and I found this interesting. About 5 years ago, I started trail braking, it compresses the forks, shortens the wheelbase and helps the bike turn. I also ride snowmobiles which are three point vehicles and no front brakes, but non the less, I enjoyed learning from the video, thank you!

[@JeffEmbracedDC]

Great lecture for on-road/street/auto-x racing. Would like to see something similar for offroad racing.

[@d1sturb3d119]

Thank you for sharing your knowledge and time! Subscribed to your instagram as well! This is incredibly helpful for many of us out there!

[@yuvarajbadiger700]

Thank you very much... It was lucky that I came across a lecture like this. It was mindblowing to expand my views on physics of racing...

[@KrOmEiFiCaTiOn]

This was insanely educational and helpful. I've done auto-cross once and been sim-racing for years, and I recently started regularly attending HPDE events, and I learned so much about tires and setup from this. Thank you.

[@cesarpalmos8235]

This randomly got recommended to me, I'm glad I watched, I was able to instantly apply some of theory and achieve consistent, faster, cleaner lap times.

[@valdier06]

Finally found videos about topics that really worth every single second. Thank you Andre!!!

[@federicoferrari6895]

Absolutely packed! great lecture sir, much appreciated. Can't wait for the formal course :)

[@ayushkaiwart2451]

Great video Sir. Thankyou so much for sharing knoweledge with us.

[@drizzylmg752]

This is great! Thank you for posting.

[@jspeed04]

One of the best videos on both racing and physics I've ever come across. I've learned so much in this lecture. I mean, wow. Thank you.

[@knysha]

The best lecture I've ever listened to. Chapeau bas.

[@ANDERSON110]

Excellent lecture! Thank you so much for recording this.

[@raghul1208]

what a beautiful lecture!

[@glowiever]

NICE!! Plenty of infos for simulation building. The information contained in this lecture is so hard to find on the internet.

[@Incognito-vc9wj]

This was an awesome presentation. Thankyou!

[@ali09gaming58]

We need your knowledge for sim racing

[@alexcr5276]

Part of the reason I love racing so much is because of all the science, physics and engineering that goes into the sport. Thanks for sharing this lecture! 👏🏼👏🏼

[@yifanwang3978]

excellent explanation of the mechanics

[@connoreddy8585]

My entire vehicle performance module in an hour and a half. Amazing lecture

[@theandrewglenn1]

I don't know how to speak or interpret physics, but the small racing experience I do have became my translator. What an AMAZING lecture and thank you for putting it on KZbin

[@vvsarja]

An amazing and informative video. Thank you!

[@UOTDF]

@Andre Marziali - thank you for this wonderfully informative lecture. I have my first drive in a couple of days time of my 488 Challenge Evo and thanks to your lecture, I am now only 95% crapping my pants! Great stuff 😊

[@Andremarziali]

Fantastic! You'll love it. My friend with the 488C Challenge is also upgrading to the Evo package soon I think. Can't wait to try it. Just brake in a straight line!! These cars are super sensitive to trailbraking😅

[@UOTDF]

@@Andremarziali thanks! All advice welcome!

[@UOTDF]

@@skulle it was sensational. What a car! Once the heat gets into the slicks, the level of grip is phenomenal! Braking is outstanding too, although perhaps a little contrary to @Andre Marziali’s advice, I was able to trail brake effectively right into several corners. Nevertheless, it was really important to get on them really hard before initiating a turn. Here’s a snippet of the day… kzbin.info/www/bejne/o6m3ZXWXqKp7oNE

[@UOTDF]

@@skulle haha - that definitely helps! Keep studying, mate 😊👍🏻

[@trykozmaksym]

This is sooo goooood. Thank you sir.

[@tensevo]

Some nice insights.

[@speedhunter7156]

This has taught me more about what i am doing subconsciously without knowing what I am actually doing and this makes me want to go back to school even more now because I miss this type of stuff

[@MrJustinwatches]

This will be my go-to guide for tuning in Gran Turismo 7!

[@BabblingBubbles01]

I'm going to think about these things when I drive now. Thanks for the power.

[@bolt5564]

Thank you for explaining the difference between the actual equation for friction and the simplified equation for friction you first learn about in physics.

[@jmtunes602]

Thanks a lot !! Just like you said in the beginning, its nothing I did not know (since I am a mechanical engineeering student), but the way your organize all the information makes it very clear and logical. Thank you again !

[@astropop2]

I've been searching for something of this quality for the Physics of skateboarding lol. Awesome video!

[@corykre]

Great video, loved the experience mixed with the math, cant argue with either and together its just knowledge.

[@jdbb3gotskills]

Just how complex set up can be in sim racing games. I more than appreciate the complexity of racing and tuning cars in real life. It’s just amazing.

[@evanfortyseven8664]

this is awesome, thanks dude!

[@kuddoh1760]

I just dropped out of college and now this guy makes me want to go back just for his classes

[@DirtTrackDave]

Nice lecture.

[@shouldigetit]

Wonderful, thank you!

[@MrHuddo]

I've never seen an individual with such an intrinsic grasp of fundamental physics and racing applications. Why you recommend this to me 5 years late KZbin?!

[@Ozzy3333333]

24:40 the yaw axis completely depends on the suspension geometry, and most times it pivots near the rear axle, not the center of the car.

[@Andremarziali]

Excellent point! I wonder whether the "static" yaw axis (meaning the point the car pivots around in tight turns at parking lot speeds with virtually no slip angle) is the same as the effective yaw axis in a turn where there is slip in the front and rear tires. Presumably, with low front slip angle and high rear slip angle, the yaw axis would move forward. I'm really not sure what this looks like during turn-in when yaw moment is most important. I'll have to think carefully about this. Thanks for bringing it up!

[@2gnospam]

Great video! With respect to the interaction of camber with caster during steering, I think (e.g. not 100% sure) that you have to model the KPI (king pin inclination angle) effect.

[@craxer01]

Amazing video!

[@StonedNoob]

I have no idea regarding engineering or mathematics. But I love cars and I find this lecture so damn interesting. Thank you for sharing this!

[@RyuDraco_]

This lecture was awesome and impeccable.

[@Matheus-tu8mk]

Great lesson. Very good teatching, i major in music and i could get most of it, so thanks!

[@amsgamingandmusic]

I'm buying a 1997 camero z28, and have been thinking of going to amature track (aside from genuinely loving racing, also to make sure I don't end up speeding, and get to release that energy somewhere, lol), and this really helps me to understand alot more what kind of physics sit behind my experiences. Thankyou for posting this so much!

[@Tycy2014]

Something that helped me understand trail braking with driving was literally a string, attached a string to my Sim rig and the brake (you can do this with the accelerator as well) either the string in place you can't trun the wheel past a limit of brakes/can't brake past a angel of the steering wheel. Was watching a documentary on how architects would make a model of a roof and then attach string to find the optimal arch for columns and thought it would work for driving.

[@gregolas597]

Woah Clever

[@chaseharrison2064]

Do you have a link to the documentary?

[@Tycy2014]

@@chaseharrison2064 um no but I could look for it, it was on national geographic channel.

[@chaseharrison2064]

@@Tycy2014 If it's not too much trouble I'd be interested.

[@dielaughing73]

That's exactly what performance driving coaches say too. It's not a literal string, but if you imagine a string between the wheel (where you hold it) and the pedals you can start to learn how to balance those inputs. After all, there's only those three basic inputs we can give the car to make it do everything we want - steering angle, throttle percentage and brake pressure.

[@exemch4826]

this would be the coolest class to take

[@redstoneguy13]

'and with wreckless use of an angle grinder, ive removed about 1000 pounds, from the car' lmfao im gonna love this

[@justinmantha189]

Amazing!

[@Ozzy3333333]

At 53:00 weight transfer in a corner is not "vertical load" on a tire as your table shows. Vertical loading (from downforce )of a tire generally gives more grip with more downforce, this is good. When a tire is near the limit of grip in a corner, adding stiffer spring on that tire adds more "lateral loading" (not vertical load as the table shows) that reduces max grip (slip angle is now excessive for that tire) (BTW, I have that "tune to win" book). Good video, thanks for sharing. Best book ever for my 4 decades of racing, "the soft science of road racing motorcycles", only $5 used, it teaches high speed thought, let that sink in for a moment. Motorcycles require keeping track of 5 things at once, where a car is only two, this makes it simple to use the books technique for cars, it has helped me win many many races by being consistently quick lap after lap.

[@Ozzy3333333]

Reinforcement of my statement, you want vertical force and not lateral force. Drag racing wants all the force vertical they can get, a perfect wheelie transferring all the weight to the rears. TF is not 11,000 HP and the rear wing can be setup to generate 8000 lbs of down force, why, more traction.

[@gtfree1809]

best video ive seen, period

[@figoarigohena1500]

Now this is a seminar i'd love to join

[@WelshAl]

An outstanding gift to those of us who can't speak engineering. There were plenty of references which I could relate to not summarised in Greek letters. Thank you

[@rge__]

I wish lectures are like this when I go to uni, I love this typa lectures

[@KILLERPOLECAT]

Great lecture. I'm sure the final video can only have been Ari Vatanen at the 1983 Manx International!

[@SaintedPIacebo]

The most fascination thing about this is just how much of this the drivers learn by experience and feel alone. Its like a baseball player throwing a ball, they might understand some of the physics of what they are doing and the cause and effect of their inputs, but many have no idea the technical aspect of what is going on, they simply feel math and data on a subconscious level and its simply amazing!

[@onemorething100]

I assure you, The best of the best drivers know this.

[@karankshah]

Great lecture

[@mohe81]

I loved the old MR2. Think I saw it on the street once or twice in my life.

[@alessandrorossi1248]

just thank you man

[@maydaygaming3953]

Thank you so much. Iv shared a link to this in the grt youtube discord im in. We play gt sport and i hope we can translate this info to better lap times.

[@astro6393]

Nice im here from GT Sport too.

[@VarietyLevel7]

hello from Brazil and, thank you very much for your lecture. 🤩

[@ChookyChuck]

Very good job. Most of it was a review for me but i learned a few things in regards to car setup. I am Engineer whom loves physics and math so i found it very enjoyable. My race car experience is a handful of autocross tracks and the Gran Turismo video game. You referenced Carroll Smiths book "Tune to Win" at 53:51. His books (Drive, Tune & Engineer) to Win are excellent too.

[@AlexB_yolo]

Thank you Sir for making this master class available to humanity!

[@philips3825]

KZbin algo at 2am: You should watch this. Me:

[@GussDeBlod]

Thank you for putting the missing clips in the description, I was quite confused XD

[@fiveyorks]

Understanding all that, which I do as a Mech Eng, is one thing, but being able to understand what is happening on turn 1, turn 2, etc. to the level that excursions from nominal become apparent to your butt as do the real-time fixes, is another. I guess I need to mentally drive myself around the track taking it turn by turn and thinking about what states the vehicle and contact patches are going through.

[@AmanExplorerBoy]

You are awesome sir

[@zakwang6713]

This is gotta be the coolest prof

[@yanggybabyghoatyanggy2696]

went to sleep and some how woke up on here ... im not mad this was gold lol

[@jelly8594]

More more more! Please!🙏🙂

[@jwinut1]

nice vid for GT7 tuning :)

[@excrubulent]

As someone who already knows a lot of the physics, there were some important insights here that I hadn't ever considered, especially about the transitional stage where you're trail braking and releasing the brake. It had never occurred to me that because the front springs are still compressed as you release the brake, you're still benefiting from the increased front traction and the lack of braking. That's why that instant of release creates such a strong turn-in, and it's really important in off-road racing where understeer is a big problem. Getting the timing of that brake release right is how you get the Scandinavian flick to work as well. I'd love to see an expert discuss the specific issues as they apply to off-road racing. There are a lot of questions I have particularly about spinning tyres and side bite on a loose surface. Contrary to tarmac racing, sliding is much faster on loose surfaces.

[@jgbalves]

My man can drive that BMW haha awesome vid

[@psilocybe_reptiliensis]

auto slalom is exactly like street x on needfor speed underground2, awsome!

[@gonzalez239]

this man helped me shave off 2 seconds off my PB on barain

[@Erick-er2mv]

The only lecture i will pay attention until the end😂