Why Load Transfer reduces GRIP in corners [HOW TO GET MORE GRIP]
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- Опубликовано: 13 янв 2022
- Are you trying to get more grip and go faster? You need to understand (Load) Weight Transfer in racing and how it works - it is likely the most important principle in vehicle dynamics. Whether you race in real life, or in a sim, don't miss out on what top drivers and engineers already know by watching this video!
Topics covered:
00:24 What affects Lateral Load Transfer
00:54 Lateral Load Transfer formula
01:00 How Lateral Load Transfer works and why the Body Rolls
01:21 Why Load Transfer reduces grip / Tire Load Sensitivity
02:10 How to reduce Load Transfer
02:51 What can go wrong
Want to optimize load transfer with CAR SETUP? Watch this: • 4 setup changes to Imp...
If you want to drive faster and CUT YOUR LAPTIMES, look no further. On my channel I will share with you things I've learnt over the last 20 years which will help shave your lap times down to the LastTenth. Whether in real life or in a racing sim, I will guide you through driving technique, track guides, car setup, race craft, telemetry analysis, race strategy, and the technical knowledge behind all of that.
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Авто/Мото
![How does WEIGHT affect GRIP? [IS MORE WEIGHT BETTER?]](http://i.ytimg.com/vi/sORwV-PF63M/mqdefault.jpg)
![How does WEIGHT affect GRIP? [IS MORE WEIGHT BETTER?]](/img/tr.png)
Hey Nik, great video man! Things are clearly explained and both your graphics and sound effects add a lot to the video. Please keep the videos coming!
Q: so from an engineering point of view, what does the stiffness of the suspension affect in terms of doing lap times on a track?
Thanks for the kind words Adrian!
There's no simple answer to that question, as a stiffer suspension has lots of implications.
i) It decreases compliance and mechanical grip
ii) It allows for a lower ride height before bottoming/rubbing
iii) It reduces ride height and alignment changes
iv) It generates a more stable aero platform
v) and others...
It also depends on what is being stiffened...
springs... which spring? some cars have more than 4
dampers... compression or rebound? high or low speed?
swaybars... which swaybar?
stiffening different things will have different results so depending on what's improved and what's worsened, the lap times will change accordingly.
정말 멋있는 비디오입니다. 짧은 시간 내에 좋은 설명을 들을 수 있어서 고맙습니다.
the ending where u just stare at the camera is creative haha
OMG I totally forgot about that. I wasn't sure if people watched that far lol. Some of the other ones are even funnier imo... I'll start doing some ending stuff when I record again.
Very well explained brother. God bless you!!
Thanks StreetKing!
Awesome video. Hope this gives me an extra edge when I’m racing next time.
Definitely does. One of the fundamental jobs of a good driver is to manage the load transfer efficiently. Less load transfer = more grip = faster car!
A driver who allows the car to transfer less load will be faster.
Like the hair and the subtle light on that trophy in the background. Concise and informative, a winner!
Thanks! Come for the hair, stay for the information!
Great video! One thing I’ve always wanted to learn about what how map out ‘ racing lines’ on the tracks - there’s good videos on RUclips for it but they only talk about the optimal line - but as you know when you’re racing its easily to get thrown off the optimal line and also what might be an optimal line might not be the same for someone else. Would love to hear your thoughts on this! Also, great hair!
That’s a great suggestion. I think what you might be referring to are known as defensive and passing lines. In the future I will devote an entire series on race craft. There’s is so much ground to cover. So make sure to voice what you want to see next!
YOURE A G. TYSM SIR
Had to look that up... lol. Thanks!
A very nice and informative channel, keep up the good work!! If you can please make a video about how to go faster with the Mercedes w12 on fixed setup. Thanks!!
Great suggestion F1 Lab! I will try my best to post that video at some point. First, I need to buy the car!
Awesome video - so concise! Love it. Great job 👏 👏👏 what's the trophy in the background for?
Thanks for your support! The trophy was from winning 1st place in an endurance kart race. It was the first endurance race my teammates and I have done so we’re quite pleased with the result. Get a good look now, because I will be handing it off to my teammates in the near future!
I just started sim racing a year ago and I really I like these videos. Keep it up 🙏🏼. I would like you to do a video on the slip angle and explain exactly why you get extra grip when you slide the car out a few degrees. Thanks for these videos
Ha! Funny enough, I just had someone in my league ask me about Slip Angle today. It is on my list to-do, along with Slip Ratio and 64 other video ideas. Thanks for the suggestion, and keep them coming!
@@LastTenth can’t wait to see them. Thank you
Great video!
And i have 1 question for you:
What is the downsides of the increasing the wheelbase?
Great question. For one, a longer wheel base will result in larger turning radii for a given steering angle. Said another way, it requires more steering to maneuver a corner than a short(er) wheelbased car.
the ending lol
I've always wondered if people watch the endings, now I know it's popular among the Saiyans.
If the car is too wide can that cause lift? I often see the wings in the side of the car for race cars so I was always curious about that.
Quite the opposite. A wider car has less load transfer so the sides will compress and lift less. A narrow car on the other hand, especially with a high CoG, may be prone to rolling over.
I think what you’re referring to are “side skirts”. They are designed to control the air pressure in the underbody. I’ll definitely do a video on that in the future, so stay tuned!!
How do ant roll bars change the level of grip?
anti-roll bars change the roll stiffness of an axle, which changes the load transfer at that axle relative to the other axle during roll. By changing the load transfer at the axles, 'grip' can be moved from one axle to the other. This is because of a tire's load sensitivity - you can learn about that here ruclips.net/video/sORwV-PF63M/видео.html.
I have a Q&A section on my discord server. This is a really good question, so if you'd like to dig deeper, feel free to join my server and ask follow up questions. Just go to discord.LastTenth.com from your browser!
Nice hair dude 👍🏻
Many have said that's the main feature of the video. I'll take what I can get!
Aside from increasing the track width and lowering the ride height. I thought sway bars can also increase and decrease load transfer?
It cannot, just like how stiffer/softer springs can't alter the total lateral load transfer.
If the track grip is high, would maximum load transfer to the outer tire give fastest cornering speed as long as the outside tire can maintain grip?
Just so I understand the question, are you asking me if a high track grip will give faster cornering speeds? The answer would be yes.
@@LastTenth If the track grip is so high would cornering speed (e.g. rotation) be faster if there is more load on the outer tire than and evenly balanced load distribution between inner and outer? The scenario is the track grip is so high the car can corner with the grip of the outside tires alone without sliding.
@@rccartipsWell if the track grip was higher, the load transfer would be higher because the car is cornering at a higher speed. Drivers don't choose how much load to transfer, it's a function of lateral acceleration, CoG height, and track width.
@@LastTenth Thank you. If you were to choose between a narrow car (faster/more LLT vs wide car (slower/less LLT) what would give a faster cornering speed assuming the track grip was so high there is no loss of side traction (sliding) even if outside tire is 100% loaded and inside 0%.
@@rccartips I think that's a false dichotomy - why is a narrower car faster? I would say that a wider car will be faster. And the wider car will have higher cornering speeds
Awesome hair buddy...
Okay jokes aside. Thanks for the informative video! So how does stiffer away bar and stiffer suspension help reduce load transfer?
I’m glad you found it helpful!
That’s a great question. The short answer is that it doesn’t - stiffer sway bar/suspension, or said another way, higher roll resistance, does *not* reduce load transfer. In actuality, quite the opposite - stiffer ride/roll rates reduce grip, all else equal.
We discuss it in this Setup Workshop with the PCA. It can be found here - ruclips.net/video/1mtppDhbWQw/видео.html. But at some point I will probably do a ‘myth-buster’ series and this will be an awesome topic to cover.
Can you talk about how to invest in cryto plz?
That deserves a whole channel on its own - but funny you should ask. Professionally, I am in investment management, and have been responsible for over USD 1Billion.
I have lots of opinions on crypto and I’d love to start a channel on money management and investing, but there are only so many hours in a day. I need two of me.
Nice tan dude.
You think I should keep it for the next video?
@@LastTenth definitely !
Very nice hair..., loved the Porsche emojers; and good cadence with your dialogue.., esp. thru that graph..!.., easy to understand:)
So basically, the reason why driving smooth is fast is because driving smooth minimizes the amount of load transfer? So a smooth driver has consistently more grip, correct?
Well yes and no. Driving that's not smooth creates more variance in load transfer, so some times it will have more load transfer, sometimes it will have less. But in a comparable basis, the average load transfer will be the same. That said, the key part is that, if there are two tires with identical average load on them, the one with lower load variance with generate more average grip. I think it's due to the hysteresis, but I'm not sure.
TBH, being smooth is sometimes overrated/misunderstood. It can help new drivers, just like any "tip" that's out there, but it's not the fastest way. If you are at the limit, you can't be perfectly smooth, because your constantly straddling that knife edge of balance and max grip. The real question is who can straddle that edge more smoothly.