auto racing

zero-grip,-maximum-fun:-a-practical-guide-to-getting-into-amateur-ice-racing

Zero grip, maximum fun: A practical guide to getting into amateur ice racing


Where we’re racing, we don’t need roads.

A studded winter tire on a blue Subaru WRX

To drive on ice, you just need the right tires. Credit: Tim Stevens

To drive on ice, you just need the right tires. Credit: Tim Stevens

In Formula One, grip is everything. The world’s best engineers devote their careers to designing cars that maximize downforce and grip to squeeze every bit of performance out of a set of four humble tires. These cars punish their drivers by slinging them at six Gs through corners and offer similar levels of abuse in braking.

It’s all wildly impressive, but I’ve long maintained that those drivers are not the ones having the most fun. When it comes to sheer enjoyment, grip is highly overrated, and if you want proof of that, you need to try ice racing.

Should you be lucky enough to live somewhere that gets cold enough consistently enough, all you need is a good set of tires and a car that’s willing and able. That, of course, and a desire to spend more time driving sideways than straight. I’ve been ice racing for well over 20 years now, and I’m here to tell you that there’s no greater thrill on four wheels than sliding through a corner a few inches astern of a hard-charging competitor.

Here’s how you can get started.

A blue Subaru WRX STI on the ice

For street legal classes, you don’t even need a roll cage. Just the right tires and the right attitude.

Credit: Tim Stevens

For street legal classes, you don’t even need a roll cage. Just the right tires and the right attitude. Credit: Tim Stevens

Ice racing basics

There are certainly plenty of professionals out there who have dabbled in or got their start in ice racing, F1 legend Alain Prost and touring car maestro Peter Cunningham being two notable examples. And a European ice racing series called Trophée Andros formerly challenged some of the world’s top professionals to race across a series of purpose-built frozen tracks in Europe and even Quebec.

These days, however, ice racing is an almost entirely amateur pursuit, a low-temp, low-grip hobby where the biggest prize you’re likely to bring home on any given Sunday is a smile and maybe a little trophy for the mantel.

That said, there are numerous types of ice racing. The most common and accessible is time trials, basically autocrosses on ice. The Sports Car Club of Vermont ice time trial series is a reliable, well-run example, but you’ll find plenty of others, too.

Some other clubs step it up by hosting wheel-to-wheel racing on plowed ovals. Lakes Region Ice Racing Club in Moultonborough, New Hampshire, is a long-running group that has been blessed with enough ice lately to keep racing even as temperatures have increased.

At the top tier, though, you’re looking at clubs that plow full-on road courses on the ice, groups like the Adirondack Motor Enthusiast Club (AMEC), based in and around the Adirondack Park. Established in 1954, this is among the oldest ice racing clubs in the world and the one I’ve been lucky to be a member of since 2002.

Will any other discipline of motorsport teach you as much about car control? Tim Stevens

AMEC offers numerous classes, providing eligibility for everything from a bone-stock Miata to purpose-built sprint cars that look like they made a wrong turn off a dirt oval. Dedicated volunteers plow courses on lakes throughout the ADK, tirelessly searching for ice of sufficient depth and quality.

Different clubs have different requirements, but most like to see a foot of solid, clean ice. That may not sound like much, but according to the US Army Corps of Engineers, it’s plenty for eight-ton trucks. That’s enough to support not only the 60 to 100 racers that AMEC routinely sees on any frigid Sunday but also the numerous tow rigs, trailers, and plow trucks that support the action.

How do you get started? All you need is a set of tires.

Tires

Tires are the most talked-about component of any car competing on the ice, and for good reason. Clubs have different regulations for what is and is not legal for competition, but in general, you can lump ice racing tires into three categories.

The first is unstudded, street-legal tires, such as Bridgestone Blizzacks, Continental WinterContacts, and Michelin X-Ices. These tires generally have chunky, aggressive treads, generous siping, and squishy compounds. Modern snow tires like these are marvelous things, and when there’s a rough surface on the ice or some embedded snow, an unstudded tire can be extremely competitive, even keeping up with a street-legal studded tire.

These tires, like the Nokian Hakkapeliita 10 and the Pirelli Winter Ice Zero, take the chunky, aggressive tread pattern of a normal snow tire and embed some number of metallic studs. These tiny studs, which typically protrude only 1 millimeter from the tire surface, provide a massive boost in grip on smooth, polished ice.

Tim races on Nokian Hakka 10 tires, which are a street-legal studded winter tire.

Credit: Tim Stevens

Tim races on Nokian Hakka 10 tires, which are a street-legal studded winter tire. Credit: Tim Stevens

Finally, there is what is broadly called a “race stud” tire, which is anything not legal for road use. These tires range from hand-made bolt tires, put together by people who have a lot of patience and who don’t mind the smell of tire sealant, to purpose-built race rubber of the sort you’ll see on a World Rally car snow stage.

These tires offer massive amounts of grip—so much so that the feel they deliver is more like driving on dirt than on ice. Unless you DIY it, the cost typically increases substantially as well. For that reason, going to grippier tires doesn’t necessarily mean more fun for your dollar, but there are plenty of opinions on where you’ll find the sweet spot of smiles per mile.

Driver skills

The other major factor in finding success on the ice is driver skill. If you have some experience in low-grip, car-control-focused driving like rally or drift, you’ll have a head start over someone who’s starting fresh. But if I had a dollar for every rally maestro or drifter I’ve seen swagger their way out onto the ice and then wedge their car straight into the first snowbank, I’d have at least five or six extra dollars to my name.

Ice racing is probably the purest and most challenging form of low-grip driving. On ice, the performance envelope of a normal car on normal tires is extremely small. Driving fast on ice, then, means learning how to make your car do what you want, even when you’re far outside of that envelope.

There are many techniques involved, but it all starts with getting comfortable with entering your car into a slide and sustaining it. Learning to balance your car in a moderate drift, dancing between terminal understeer (plowing into the snowbank nose-first) and extreme oversteer (spinning into the snowbank tail-first), is key. That comfort simply takes time.

Reading the ice

Ruts in the ice made by ice racing

The condition of the track changes constantly.

Credit: Tim Stevens

The condition of the track changes constantly. Credit: Tim Stevens

Once you figure out how to keep your car going in the right direction, and once you stop making sedan-shaped holes in snowbanks, the next trick is to learn how to read the ice.

The grip level of the ice constantly evolves throughout the day. The street-legal tires tend to polish it off, wearing down rougher sections into smoothly polished patches with extremely low grip. The race studs, on the other hand, chew it up again, creating a heavily textured surface.

If you’re on the less extreme sorts of tires, you’ll find the most grip on that rough, unused ice. In a race stud, you want to seek out smooth, clean ice because it will give your studs better purchase.

If you’re familiar with road racing, it’s a little like running a rain line: not necessarily driving the shortest path around, but instead taking the one that offers the most grip. Imagine a rain line that changes every lap and you start to get the picture.

How can I try it?

Intrigued? The good news is that ice racing is among the most accessible and affordable forms of motorsport on the planet, possibly second only to autocrossing. Costs vary widely, but in my club, AMEC, a full day of racing costs $70. That’s for three heat races and a practice session. Again, all you need is a set of snow tires, which will last the full season if you don’t abuse them.

The bad news, of course, is that you need to be close to an ice racing club. They’re getting harder and harder to find, and active clubs generally have shorter seasons with fewer events. If you can’t find one locally, you may need to travel, which increases the cost and commitment substantially.

If you don’t live where the lakes freeze, you’ll have to travel. Tim Stevens

If cost is no issue, you certainly have more opportunities. We’ve already reported on McLaren’s program, but it’s not alone. Exotic brands like Ferrari and Lamborghini also offer winter driving programs, where you can wheel amazing cars in glamorous places like St. Moritz and Livigno. The cost is very much in the “if you have to ask” category.

Dirtfish, one of the world’s greatest rally schools, also offers an ice-driving program in Wisconsin, starting at about $2,000 for a single day. This is a great, if expensive, way to get a feel for the skills you’ll need on ice.

And if you just want the most seat time, look for programs like Lapland Ice Driving or Ice Drive Sweden. The northern wilds of Sweden and Finland are full of frozen lakes where clubs plow out full race courses, sometimes repeating Formula One circuits. If you have the funds, you can rent any manner of sports car and run it sideways all day long on proper studded tires.

Whatever it costs and whatever you have to do to make it happen, ice racing is well worth the effort. I’ve been lucky to drive a long list of amazing cars in amazing places, but nothing comes close to the joy of wheeling my 20-year-old Subaru around a frozen lake.

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driverless-racing-is-real,-terrible,-and-strangely-exciting

Driverless racing is real, terrible, and strangely exciting

people showed up to watch —

The Abu Dhabi Autonomous Racing League proves it’s possible, just very hard.

Several brightly colored race cars are parked at a race course

Enlarge / No one’s entirely sure if driverless racing will be any good to watch, but before we find that out, people have to actually develop driverless race cars. A2RL in Abu Dhabi is the latest step down that path.

A2RL

ABU DHABI—We live in a weird time for autonomous vehicles. Ambitions come and go, but genuinely autonomous cars are further off than solid-state vehicle batteries. Part of the problem with developing autonomous cars is that teaching road cars to take risks is unacceptable.

A race track, though, is a decent place to potentially crash a car. You can take risks there, with every brutal crunch becoming a learning exercise. (You’d be hard-pressed to find a top racing driver without a few wrecks smoldering in their junior career records.)

That’s why 10,000 people descended on the Yas Marina race track in Abu Dhabi to watch the first four-car driverless race.

Test lab

The organizers of the Abu Dhabi Autonomous Racing League (A2RL) event didn’t brief me on what to expect, so I wasn’t sure if we would see much car movement. Not because the project was likely to fail—it certainly had a lot of hardware and software engineering behind it, not to mention plenty of money. But creating a high-speed, high-maneuverability vehicle that makes its own choices is an immense challenge.

Just running a Super Formula car—the chassis modified for the series—is a big task for any race team, even with an expert driver in the cockpit. I was ready to be impressed if teams got out of the pit lane without the engine stalling.

But the cars did run. Lap times weren’t close to those of a human driver or competitive across the field, but the cars did repeatedly negotiate the track. Not every car was able to do quick laps, but the ones that did looked like actual race cars being driven on a race track. Even the size of the crashes showed that the teams were finding the confidence to begin pushing limits.

Each of these Dallara Super Formula cars has been modified by its team to operate without a human driver onboard or in control.

Enlarge / Each of these Dallara Super Formula cars has been modified by its team to operate without a human driver onboard or in control.

A2RL

Is it the future of motorsport? Probably not. But it was an interesting test lab. After a year of development, six weeks of code-jam crunch, 14 days of practice, and one event, teams are going home with suitcases full of data and lessons they can use next year.

The track and the cars

A2RL is one of three competitions being run by Aspire, the “technology transition pillar” of Abu Dhabi’s Advanced Technology Research Council.

Yas is an artificial island built as a leisure attraction, housing theme parks and hotels alongside the circuit, with an influencer photo opportunity around every corner. The island was the focus of the Emirate restyling itself for tourism, and its facilities now play secondary host to another image makeover as a technology hub. An F1 track is now finding a second use as a testing lab, and it’s probably the only track in the region that could afford the kind of excess that two weeks of round-the-clock, floodlit, robotic testing represents.

Although the early ambition was to use Formula 1 cars to reflect Yas Marina’s purpose as a circuit, the cost compared to a Super Formula car was absurd. Plus, it would have required eight identical F1 chassis. Even in the days of unrestricted F1 budgets, few teams could afford that many chassis in a season.

So Aspire’s Technology Innovation Institute (TII) went to the manufacturer Dallara, which supplies almost every high-level single-seater chassis, including parts of some F1 cars, but also every IndyCar, Super Formula, Formula E, Formula 2, and Formula 3 car, plus a whole array of endurance prototypes. Dallara was also involved in the 2021 Indy Autonomous Challenge via the IndyNXT chassis.

TII in Abu Dhabi was also involved in the Indy Autonomous Challenge as part of a university’s team, so it got to see how the cars had been rapidly adapted to accommodate a robotic “driver.”

  • The computer that controls the driving and interprets the sensor stack, situated in the cockpit—almost like a human driver.

    Hazel Southwell

  • The Meccanica42 actuators that operate throttle, brake, and steering onboard the adjusted SF23 chassis.

    Hazel Southwell

  • L-R: The robotic array that sits lower in the car’s cockpit for the actuators to operate the car, and the computer that sits above it for maximum ventilation.

    Hazel Southwell

  • A look at one of the car’s sensor pods.

    A2RL

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f1’s-pursuit-of-sustainability-drives-pirelli-to-unveil-forest-friendly-tires

F1’s pursuit of sustainability drives Pirelli to unveil forest-friendly tires

pit stop —

The Forest Stewardship Council has given its approval to Pirelli’s natural rubber.

A pirelli F1 tire with the FSC logo on it

Enlarge / You’ll notice the Forest Stewardship Council’s logo on the sidewall to the right of the Pirelli logo.

Pirelli

Formula 1 is on a big sustainability kick. The race cars are switching to carbon neutral synthetic fuels. Teams are improving their logistics to cut freight emissions. Race tracks are starting to run entirely on solar power. And now, the tires that Pirelli brings to the races have been given the seal of approval by an NGO as meeting its standards for sustainable forestry.

It will be hard to spot when the cars are moving, but this year, you’ll find a tree logo on the sidewall. That indicates that the natural rubber that went into making the tire has been certified by the Forest Stewardship Council. Natural rubber makes up about 15 percent of the rubber in an F1 tire, with the rest being synthetic.

According to the FSC, natural rubber is a key driver of deforestry, as well as human rights abuses, particularly among the smallholders who farm 85 percent of the world’s natural rubber. By putting its logo on the tire, the FSC says that Pirelli has met “the world’s most credible standards for sustainable forestry,” protecting both the forests and the forest communities’ rights, including fair wages.

It’s one of a number of steps that Pirelli has put in place to make its F1 program more sustainable.

“I believe that the certification is an important step in this direction because it’s not Pirelli that is certifiying itself; it is a recognized third party that is giving us this certification, from the way in which we collect natural rubber, with respect of biodiversity, respect of the local population, the way we transport or use the natural rubber,” explained Mario Isola, head of Pirelli’s F1 program.

The synthetic rubber—chosen because it allows Pirelli to tune the characteristics it needs for the tires’ performance—is another area of attention. “Our R&D is focused on replacing the current material with more sustainable materials, keeping the same level of performance characteristics of the tire,” Isola told Ars.

Pirelli technicians work on the tires during practice ahead of the F1 Grand Prix of Saudi Arabia at Jeddah Corniche Circuit on March 7, 2024, in Jeddah, Saudi Arabia.

Enlarge / Pirelli technicians work on the tires during practice ahead of the F1 Grand Prix of Saudi Arabia at Jeddah Corniche Circuit on March 7, 2024, in Jeddah, Saudi Arabia.

Qian Jun/MB Media/Getty Images

In other racing disciplines, particularly sports car racing, series have begun to restrict the total tire allocation across a race weekend to drive the development of more durable tires that will be used across multiple stints rather than being changed at each pit stop. That’s less appropriate in F1, where the rules require using two different tire compounds during a race. But for this year, Pirelli may well be able to cut the number of wet and intermediate tires by half.

“We are working on another idea that is what we call ‘strip and fit.’ When we fit a tire on a rim, even if it is new, we have to scrap it because of the bead and the stress that you put on the bead,” Isola said.

“But we made an investigation on wet and intermediate tires where the stress on the tire was lower compared to the slick tire. So the tires that we are going to fit but not use during the first half of the season will be dismounted and checked, and then we can use them in the second half of the season. If it doesn’t rain—obviously, we cannot control the weather—we are going to save roughly 50 percent of the rain tires,” he told me.

In other F1 tire news, we’ve now learned that the sport will stick with 18-inch wheels when the technical regulations undergo their next shake-up ahead of the 2026 season.

F1 only moved to 18-inch wheels from much smaller 13-inch wheels at the start of the 2022 season, long after any new vehicle was equipped with wheels so small. There have been complaints that the larger 18-inch wheels have added too much unsprung weight to the current generation of F1 cars, which are by far the heaviest the sport has seen in its history.

Consequently, it was believed that the sport might reduce the wheel size to 16 inches in 2026. But that would require an expensive testing program, and since 16-inch wheels are barely more road-relevant to current new vehicles than 13-inch wheels, the decision was made to stick with what we mostly have now, although the final tire size and shape have yet to be decided upon.

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