Weight Transfer Part 2: Does the Racing Driver Control the Weight Transfers?

Uncategorized Jun 20, 2018

 

What do these three F1 racing drivers have in common?  Kimi Räikkönen, Valtteri Bottas and a young Nico Rosberg (when he drove for Williams in 2006).

They’ve all been coached by Rob Wilson – “the F1 drivers coach”.  He’s also coached many other professional drivers, racing in just about every pro racing series around the world.

Rob knows weight transfer.  Most times, when he is talking about driving, he’s talking about weight transfer.  He says that “the rate at which you transfer weight”, is just about the most important thing you do in a race car. 

For a quick look at what he does, check out this video with Formula E driver, Karen Chandok.  It shows Rob's great sense of humor as well:
https://www.youtube.com/watch?v=r3uBhntzrtU
2017 Belgium - Rob Wilson Driving School

Rob is teaching smooth introduction of the steering brake and throttle so as to maintain maximum grip.  From that...

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Weight Transfer Part 1 - It's Not Doing What You Might Think

Uncategorized Jun 15, 2018

Racing drivers often talk about weight transfer – weight transferring forward under brakes, rearward under acceleration and from inside wheels to outside wheels when cornering.

Weight transfer concepts are hugely important in suspension set-up.  Weight transfer across the car in cornering, is the basis of the most important tool we have in suspension set-up  – using weight transfer distribution between the front and rear axles to adjust the balance of the car.  But the driver is unaware of the weight transfer distribution itself - only the feel of the car resulting from the balance adjustment.

Weight transfer is the result of acceleration, braking or cornering.  If you accelerate, brake or corner harder, you transfer more weight. 

For weight transfer to be useful to the driver in controlling the car, the driver would need to feel the weight transfer, or something related to it.

Weight transfer in pitch and roll is just weight transfer coming off...

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Race Car Design and Testing With Virtual Prototypes and Real Drivers at the Controls

Uncategorized May 22, 2018

What Can We Learn from the recent development of Race and Road Car Prototype Testing with Simulators that have Real Drivers at the Controls?

The "Virtual Model" of the car is built in software known as Multi-Body Systems Software (MBS).  In my view, the success of MBS modelling, and particularly the driver in the loop simulator, is affirmation that the nature of handling and the driver's task can be best understood with the application of some basic vehicle dynamics principles. 

The motion and feel of the vehicle is governed by the forces generated between the tyres and the road.  So, in order to "drive" the virtual model, engineers have developed mathematical models, the so-called "equations of motion".  Tyre forces are calculated in cornering through an estimation of the vehicle sideslip angle and a related tyre model for the vehicle in question. 

First up, we should highlight the difference between the algorithms used in high end racing computer games and...

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Race and Road Car Design and Testing With Virtual Prototypes and Real Drivers in the Loop

Uncategorized May 22, 2018

What Can We Learn from the recent development of Race and Road Car Prototype Testing with Simulators that have Real Drivers at the Controls?

These simulators use software based on the mathematics of Classical Vehicle Dynamics.

The "Virtual Model" of the car is built in software known as Multi-Body Systems Software (MBS).  In my view, the success of MBS modelling, and particularly the driver in the loop simulator, is affirmation that the nature of handling and the driver's task can be best understood with the application of some basic vehicle dynamics principles. 

First up, we should highlight the difference between the algorithms used in high end racing computer games and virtual prototyping of real cars.  The racing game only needs a life-like experience for the driver within the racing game.  The virtual prototype represents the build and response of the real car. The driving experience in the simulator must transfer to the real car, for the virtual prototype...

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Would You Like to have a go in Historic/Vintage Sports Car Racing?

Uncategorized May 07, 2018

What Car Would You Choose to Drive?  For me, I’d like to drive Andrew’s superb Triumph TR3A Group SA historic production sports car.

In historic production car racing, it’s all about the cars.  That’s where the passion comes from. 

But they’re not only there to look good.  The cars have to go fast, and race pretty hard as well.

Pictured is Andrew Gibson’s Triumph TR3A Group SA Historic Sports Car.  He’s raced at race meetings throughout NSW and Victoria for almost twenty years now - always immaculately presented, just like you see here.  On a bright sunny race day, in the pits, it’s a magnet for lookers and photographers alike.

It’s Australia’s fastest ever side-screen TR in historic racing. 

We started working with Andrew in the year 2000.  The car was hugely responsive to suspension set-up improvements and by 2001, he was getting class and overall race wins in Group Sa and combined...

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Racing Set-Up for the new ZB Commodore in V8 Super Car Racing

Uncategorized Apr 13, 2018



BJR's (driver, Nic Percat) and Triple Eight's ZB Commodores

Speedcafe.com reports that Holden teams in the 2018 Virgin Australia Supercars Championship believe there is more performance to come from the ZB Commodore, as they begin to understand and develop the brand-new car.

The car is very good straight off.  Holden teams have won seven of the eight races and claimed a clean sweep of fastest laps.

Speedcafe interviewed Brad Jones from Brad Jones Racing and Mark Dutton from Triple Eight Racing.

Brad said, “With any car, you don’t turn up every day with exactly the same set-up.  Once you understand the car, you know what tools to get out of your toolbox to change different aspects of that car depending on what you’re looking for.

“And when you have a new car it’s learning how those tools, or which tools, impact the most and what changes what.

“It just takes time, and the more time you spend with the car, the more you understand what tools...

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How to Set-Up for a Fast Race Car..

Uncategorized Mar 13, 2018



When You Buy a New (or new to you) Race Car, You’re Itching to Get the Car Out on the Track, Right?

What’s wrong with taking the car out and seeing what it can do?

Problem is, you probably won’t learn anything.  If it’s fast or slow, you won’t know why.  You won’t know how to address any of the handling issues you experience with the car.

Most times, testing the car straight off is sure to disappoint. 

Much better to do your homework first.  Just like James has done, and delivered such staggering results last weekend.

In the 60's and 70s, we had no idea.  We'd give the car a wheel alignment and that's it.  We'd drive the car as it was given to us by the factory or previous owner.

Today it is very, very different.  We can engineer the changes to the car, and have the performance unfold before our eyes.  I can't tell you how stark the difference is, in my experience.

One thing hasn't changed however:

Never...

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Top Priorities for Best Handling Performance

Uncategorized Feb 07, 2018


(This video was shot on the weekend of the Singapore GP.  Examples of driver confidence refer to Sebastian Vettel's qualifying performance at Singapore and Cameron Waters first up win in V8 Supercars at Sandown.)

(The workshop mentioned in the video is finished.  But do get our new E book, "7 Hacks to Suspension Set-Up Mastery".  Go to the bottom of the page.)

What are the Top Priorities for a Great Handling Race Car?

You don’t get too far in racing before you realize, the results and satisfaction you get depends to a large degree on your suspension set-up.  It’s no fun fighting an ill handling car.  Sometimes it can sap your confidence too. 

Maybe you’ve been making progress, but now you’ve plateaued out. There’s no better kick start than sorting your suspension set-up.   With more grip and better balance, it'll be just what you need to get you moving forward again.

Maybe set-up has always been on your radar, but there...

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When is a Street Sleeper Quicker Than a Full-On Race Car?

Uncategorized Feb 03, 2018

When is a street sleeper quicker than a full-on race car?

When it’s Steve Haydon’s 97 EL91 Toyota Starlet Turbo, that’s when.

He races Street Sprints at Lakeside Park and he won the street series in Road6 category for 2017 with best time of 1 minute 02 secs.  That’s quicker than a lot of the Group C full-on racing touring cars of the 1980’s!

And Steve is so laid back, he hasn’t even got a photo I can show you of the car on the race track.

If you were thinking about beating him in 2018, you might bring any atmo 6 cyl or 4 cyl turbo (as long as it is road registered).  So, you’d think any sort of 6 cyl Porsche or BMW, or MR2/180/200SX/MX5 turbo and you’d beat him, right?  Well, you’d better bring a good one, because he’s already flogging a lot of those.

Steve is a foundation member of our training course “Get More grip and Better Balance” from 2016, when we where first putting our training programs...

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Selecting Springs and Anti-Roll Bars - Part 1

Uncategorized Dec 26, 2017


The Racing Car Technology Weight Transfer Worksheet ™ is shown above.  We present it as either an Excel Spreadsheet download, or an in the web page interactive calculator.

It's easy to measure and weigh the car for the input data shown on the left (white background).  The results are in the right hand column.

Selecting the Springs and Anti-Roll Bars We Need, for Better Grip and Balance with the Weight Transfer Worksheet™.

What do we do most times when buying aftermarket springs for our race or road performance car?  We depend on advice from our supplier or our car builder.  Or we might talk to our competitors, maybe check out the forums, to see what others with our brand of car are using.

There are so many different views.  Some may feel it doesn’t matter that much, what springs you use.  Others may think softer springs are better; “I’ll settle for the 8kg/mm spring rather than the 10kg/mm for XYZ...

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