How To Get Into Cars: Forced Induction

For those addicted to automotive thrills, there’s always an underlying lust for more power. For those chasing a bigger number, forced induction is one of the most effective ways to achieve it. In addition to more grunt, you get a whole bunch of fun new noises, too.  For those with a naturally aspirated car, here’s how you go about converting to forced induction.

Superchargers and Turbos

When we talk about forced induction, we’re talking about forcing more air into the engine under pressure. With more air available, it’s possible to fully combust more fuel, creating more power. The two most common ways of doing this are supercharging and turbocharging. We’ll be using the common automotive vernacular here, so those eager to bicker about terminology from the early 20th century aircraft industry best do it in the comments. Continue reading “How To Get Into Cars: Forced Induction”

Yet More Takata Airbags Are Causing Fatalities Despite Different Propellant Chemistry

Takata Corporation has become well known as a lesson in product safety, thanks to their deadly airbags which were installed in cars worldwide. Despite filing for bankruptcy in 2017, their shadow lingers on as the biggest product recall in history continues to grow ever larger. Over time, the story grows deeper, as investigators find new causes for concern and deaths continue to mount.

In late 2019, another Takata recall was announced — one which caused fresh worry among industry officials familiar with the case. Up to this point, the defective parts produced by Takata were the models based on ammonium nitrate propellants, a chemical that other manufacturers had deemed too dangerous to use. However, there have been reports of other models using different chemistries having fatally injuring motorists, raising the question of whether any Takata airbag could be considered safe.

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How To Get Into Cars: Handling Mods

As a budding automotive enthusiast, you finally took the plunge and scored yourself a sweet project car. After going through it from top to toe, you’ve done your basic maintenance and it’s now running like a top. Now you’re getting comfortable, you’ve set your sights on turning your humble ride into a corner carving machine. Here’s a guide to get yourself started.

It’s All About Grip

When it comes to creating a handling monster, the aim is to create a car that sticks to the road like glue, and is controllable when it does break loose. Having a car that handles predictably at the limit is a big help when you’re pushing hard on track, particularly for an inexperienced driver. And, whether you’re hitting the canyons on the weekend or trying to slash your laptimes, it’s always nice to have more grip. Through selecting the right parts and getting the set up right, it’s possible to hone your car’s cornering ability to make it a rewarding experience to drive fast and hard. Continue reading “How To Get Into Cars: Handling Mods”

How To Get Into Cars: Choosing Your First Project Car

The automobile is a wonderous invention, perhaps one of the most transformative of the 20th century. They’re machines that often inspire an all-consuming passion, capturing the heart with sights, sounds, and smells. However, for those who grew up isolated from car culture, it can be difficult to know how to approach cars as a hobby. If this sounds like you, fear not – this article is a crash course into getting your feet wet in the world of horsepower.

So You Like Cars, Eh?

Project cars let you do things that you’d never dare attempt in a daily.

The first step to becoming a true gearhead is identifying your specific passion. Car culture is a broad church, and what excites one enthusiast can be boring or even repulsive to another. Oftentimes, the interest can be spawned by a fond memory of a family member’s special ride, or a trip to a motor race during childhood.

Knowing what kind of cars you like is key to your journey. You might fall in love with classic American muscle and drag racing, or always fancied yourself in the seat of a tweaked-out tuner car a la The Fast And The Furious. Movies, posters, magazines, and your local car shows are a great way to figure out what excites you about cars. Once you’ve got an idea of what you like, it’s time to start thinking about picking out your first project car. Continue reading “How To Get Into Cars: Choosing Your First Project Car”

Ask Hackaday: Does Your Car Need An Internet Killswitch?

Back in the good old days of carburetors and distributors, the game was all about busting door locks and hotwiring the ignition to boost a car. Technology rose up to combat this, you may remember the immobilizer systems that added a chip to the ignition key without which the vehicle could not be started. But alongside antitheft security advances, modern vehicles gained an array of electronic controls covering everything from the entertainment system to steering and brakes. Combine this with Bluetooth, WiFi, and cellular connectivity — it’s unlikely you can purchase a vehicle today without at least one of these built in — and the attack surface has grown far beyond the physical bounds of bumpers and crumple zones surrounding the driver.

Cyberattackers can now compromise vehicles from the comfort of their own homes. This can range from the mundane, like reading location data from the navigation system to more nefarious exploits capable of putting motorists at risk. It raises the question — what can be done to protect these vehicles from unscrupulous types? How can we give the user ultimate control over who has access to the data network that snakes throughout their vehicle? One possible solution I’m looking at today is the addition of internet killswitches.

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The Future Of Diesel Is On Shaky Ground

Diesel is a fuel that has had a mixed history, with varying levels of take-up by consumers around the world. In the world of transport, diesel engines have offered better fuel economy and torque than comparable gasoline engines. Particularly popular in Europe, diesel established a strong consumer base in both small commuter cars as well as heavy vehicles such as trucks and buses.

Despite this, the tide is turning, and for the average motorist, diesel’s days may be numbered. Why is this the case, and what are the potential alternatives vying for diesel’s crown?

Plenty of Pros, but Plenty of Cons

Diesel remains a fuel with a varied uptake around the world. It has enjoyed great popularity in Europe in small commuter cars.

Diesel is a hydrocarbon fuel with several advantages over gasoline. Its lack of volatility makes it workable to use in a compression-ignition mode, and diesel engines can be run with lean fuel-air ratios. It also has a higher volumetric energy density than gasoline, and thanks to low volatility, diesel engines can run at significantly higher compression ratios without risking detonation. These benefits allow diesel engines to produce significantly more torque than similarly sized gasoline engines, and they can offer fuel economy gains in excess of 15%.

Unfortunately, diesel also comes with its fair share of drawbacks. Diesel engines are typically poor when it comes to power to weight ratio, as their high compression ratio and torque output demands heavier materials in their construction. The major bugbear of the diesel engine, however, is its emissions. Despite greater fuel efficiency, carbon dioxide output from a diesel engine is often far worse than that of a comparable gas motor. Additionally, their lean-burning nature leads to production of high levels of oxides of nitrogen (NOx), which have major negative environmental effects. There’s also the problem of particulate pollution, which is responsible for respiratory harm in humans. Diesel automobiles rank significantly worse than gasoline vehicles in all these areas. It’s begun to cause figurative headaches for the industry, and literal headaches for the public. Continue reading “The Future Of Diesel Is On Shaky Ground”

Salvaging Audio Amplifiers From Vintage Volvos

The common automotive scrap yard is a land of plenty for the enterprising hacker., where many items that would be prohibitively expensive elsewhere can often be had for a song. This isn’t just limited to strictly automotive parts either, as the modern vehicle is full of all kinds of hardware. [Nikita] managed to salvage a pair of audio amplifiers from an old Volvo, and put them to good use. It’s a great idea if you’re looking for cheap audio hardware!

The amplifiers are from a Volvo 760 made in 1984. There’s one rated at 40 watts per channel, and a smaller device rated at 25 watts per channel – likely to drive the front and rear speakers from separate amps. The amplifiers take 12 volts nominally, as one would expect. After some initial testing with a car battery and unsticking old relays, things began to crackle into life.

With the hardware now functioning, it was simply a case of bolting the amplifiers into a frame, hooking them up to a converted ATX power supply, and wiring up some connectors for speakers and audio input. With a few bits and pieces invested, [Nikita] now has a good quality amplifier to run audio in the workshop.

There’s plenty of useful hardware you can score down at the wreckers, and we see these parts used in hacks all the time – from peculiar milling machines to automated watering systems.