> TurboCharging Article< + more Direct Injection
#1
03-29-2012, 09:10 AM
> TurboCharging Article< + more Direct Injection
Hi Member's, found a interesting article on "TurboCharging I thought a few member's may enjoy reading.... I think we are going to see more `Turbo's in our future rides 4-Sure...Post your comments `OK
Techsplanation: Turbo Charging For The Family Car
Not just for performance cars any more. Turbo is boosting fuel economy in even entry-level hatchbacks
Posted: Mar 14, 2012
Turbo chargers have been around the auto industry for decades, typically used to boost the performance of already powerful engines. But today, the turbo is showing up in cars, SUVs and trucks of every stripe and price to boost fuel economy.
The Hyundai Veloster, Chevy Malibu, Chevy Sonic and Ford F150 pickup are all sporting turbos to make small fuel efficient engines perform more like bigger, thirstier ones. If you are interested in a new car that comes with a turbo, and you have never driven or considered one before, here is what you should know before signing on the bottom line.
What is it?
A turbocharger - or just "turbo" for short - is a mechanical device that boosts engine power. All car engines require three things to create the explosions that power them: air, fuel and ignition. Turbocharged engines are called "forced induction" engines, because the turbo forces more air into the engine. This allows it to burn more fuel with every revolution, making the engine more powerful than one without a turbocharger, which are known as "naturally aspirated engines." Turbos allows car manufacturers to put replace bigger engines with smaller ones, such as dropping a V-6 for a four-cylinder engine or replacing a V-8 with a V-6. The only thing consumers notice is improved fuel economy.
How does it work?
http://autos.aol.com/article/techspl...usaolp00000024
^^^^^^^Click above to watch Vid ^^^^^^^^^^^^^^
It's actually pretty simple. The turbocharger is attached to the engine near the exhaust manifold, so that gasses can pass through the turbo before they go into the pipes that carry the exhaust back to the muffler and tailpipe. The exhaust gasses pass through a turbine in the turbocharger, spinning it at thousands of revolutions per minute. The turbo pressurizes the fresh air that's headed into the engine. The real beauty of the system is that it doesn't require any extra energy to compress the air headed into the engine.
To simplify it a bit more, think of a turbocharger as a pair of big fans. The exhaust gas coming out of the engine spins one of the fans. That's connected to the second fan, which blows fresh air back into the engine. Since the air going into the engine is pressurized, more of it can be crammed into the same volume in the cylinders than a naturally aspirated engine. So the engine control computer is able to add more fuel to the cylinders, to create bigger explosions, which translates into more power. This means the engine only produces more power when the driver wants it.
Why would I want it?
Easy: Better fuel economy with no sacrifice in power. Most of the time you're driving your car you don't need lots of power. A car only uses about a third of its maximum horsepower to drive on the freeway, and most of the time you're driving in the city you're actually decelerating, braking or stopped. At these times, the turbo is off, so the engine consumes less fuel than a bigger, naturally aspirated engine.
But when it does come time to accelerate, the turbocharger allows the smaller engine to produce enough power to feel like a much bigger engine and propel the car smoothly up to speed.
Is there any downside?
In earlier eras, turbochargers got a bad rap for being prone to failure. They also developed a reputation for having "lag," a delay between the driver pressing on the accelerator and the turbocharger producing its full effect. Both problems have been largely consigned to history, as modern materials and manufacturing techniques have made turbochargers much more durable. Lag has been mostly eliminatd, but you need to test drive the car, of course, to see for yourself. The degree of lag varies from car to car.
The one downside to turbocharged engines is that they do have extra parts compared to naturally aspirated engines, which can make them a bit more expensive to manufacture. This usually translates to a slightly higher price for turbocharged trim levels of the same model.
What vehicles offer it?
Volkswagen has long offered turbocharged four-cylinders in most of its lineup - the current 2.0-liter turbo engine with direct injection makes 200 horsepower in the 2012 Beetle. That powerplant is also offered in the GTI, Jetta GLI, and Tiguan, among other VW and Audi
products.
Ford has gotten into turbocharging more recently, and in a big way. Its "EcoBoost" line of engines all incorporate turbochargers, along with direct injection technology, offering better fuel economy from smaller engines. Ford's flagship F-150 pickup features an optional 3.5-liter EcoBoost V6 that outperforms its huge 5.0-liter V8, offering more horsepower and torque, plus better fuel economy.
More stringent fuel economy regulations have resulted in many more turbocharged vehicles being introduced in recent years. Other manufacturers that offer turbocharged models include BMW, GM (in its Chevrolet Sonic and Cruze, among others), Hyundai, Kia, Mitsubishi, Subaru and Volvo.
Bottom line
Turbocharged engines are a winning proposition for consumers. Providing greater efficiency and more power, turbocharing translates to smaller engines with better mileage with no sacrifice in performance.
Techsplanation: Turbo Charging For The Family Car
Not just for performance cars any more. Turbo is boosting fuel economy in even entry-level hatchbacks
Posted: Mar 14, 2012Turbo chargers have been around the auto industry for decades, typically used to boost the performance of already powerful engines. But today, the turbo is showing up in cars, SUVs and trucks of every stripe and price to boost fuel economy.
The Hyundai Veloster, Chevy Malibu, Chevy Sonic and Ford F150 pickup are all sporting turbos to make small fuel efficient engines perform more like bigger, thirstier ones. If you are interested in a new car that comes with a turbo, and you have never driven or considered one before, here is what you should know before signing on the bottom line.
What is it?
A turbocharger - or just "turbo" for short - is a mechanical device that boosts engine power. All car engines require three things to create the explosions that power them: air, fuel and ignition. Turbocharged engines are called "forced induction" engines, because the turbo forces more air into the engine. This allows it to burn more fuel with every revolution, making the engine more powerful than one without a turbocharger, which are known as "naturally aspirated engines." Turbos allows car manufacturers to put replace bigger engines with smaller ones, such as dropping a V-6 for a four-cylinder engine or replacing a V-8 with a V-6. The only thing consumers notice is improved fuel economy.
How does it work?
http://autos.aol.com/article/techspl...usaolp00000024
^^^^^^^Click above to watch Vid ^^^^^^^^^^^^^^
It's actually pretty simple. The turbocharger is attached to the engine near the exhaust manifold, so that gasses can pass through the turbo before they go into the pipes that carry the exhaust back to the muffler and tailpipe. The exhaust gasses pass through a turbine in the turbocharger, spinning it at thousands of revolutions per minute. The turbo pressurizes the fresh air that's headed into the engine. The real beauty of the system is that it doesn't require any extra energy to compress the air headed into the engine.
To simplify it a bit more, think of a turbocharger as a pair of big fans. The exhaust gas coming out of the engine spins one of the fans. That's connected to the second fan, which blows fresh air back into the engine. Since the air going into the engine is pressurized, more of it can be crammed into the same volume in the cylinders than a naturally aspirated engine. So the engine control computer is able to add more fuel to the cylinders, to create bigger explosions, which translates into more power. This means the engine only produces more power when the driver wants it.
Why would I want it?
Easy: Better fuel economy with no sacrifice in power. Most of the time you're driving your car you don't need lots of power. A car only uses about a third of its maximum horsepower to drive on the freeway, and most of the time you're driving in the city you're actually decelerating, braking or stopped. At these times, the turbo is off, so the engine consumes less fuel than a bigger, naturally aspirated engine.
But when it does come time to accelerate, the turbocharger allows the smaller engine to produce enough power to feel like a much bigger engine and propel the car smoothly up to speed.
Is there any downside?
In earlier eras, turbochargers got a bad rap for being prone to failure. They also developed a reputation for having "lag," a delay between the driver pressing on the accelerator and the turbocharger producing its full effect. Both problems have been largely consigned to history, as modern materials and manufacturing techniques have made turbochargers much more durable. Lag has been mostly eliminatd, but you need to test drive the car, of course, to see for yourself. The degree of lag varies from car to car.
The one downside to turbocharged engines is that they do have extra parts compared to naturally aspirated engines, which can make them a bit more expensive to manufacture. This usually translates to a slightly higher price for turbocharged trim levels of the same model.
What vehicles offer it?
Volkswagen has long offered turbocharged four-cylinders in most of its lineup - the current 2.0-liter turbo engine with direct injection makes 200 horsepower in the 2012 Beetle. That powerplant is also offered in the GTI, Jetta GLI, and Tiguan, among other VW and Audi
products.
Ford has gotten into turbocharging more recently, and in a big way. Its "EcoBoost" line of engines all incorporate turbochargers, along with direct injection technology, offering better fuel economy from smaller engines. Ford's flagship F-150 pickup features an optional 3.5-liter EcoBoost V6 that outperforms its huge 5.0-liter V8, offering more horsepower and torque, plus better fuel economy.
More stringent fuel economy regulations have resulted in many more turbocharged vehicles being introduced in recent years. Other manufacturers that offer turbocharged models include BMW, GM (in its Chevrolet Sonic and Cruze, among others), Hyundai, Kia, Mitsubishi, Subaru and Volvo.
Bottom line
Turbocharged engines are a winning proposition for consumers. Providing greater efficiency and more power, turbocharing translates to smaller engines with better mileage with no sacrifice in performance.
Last edited by Space; 03-29-2012 at 10:22 AM.
#2
03-29-2012, 09:20 AM
Techsplanation: Direct Injection
Posted: Jan 19, 2012
Ford's EcoBoost engines use direct injection technology (Ford).
Gasoline direct injection is one of those technologies that make you think, "Why the heck didn't they figure this out sooner?" It's a simple fix to the regular old combustion engine, and it saves a lot of fuel. Instead of mixing air and gasoline outside the combustion chamber, the system sprays gasoline directly into the chamber. The result is literally more bang for your buck. (Don't worry, we'll explain this all in detail in a little bit).
Actually, engineers in the auto industry did think about it earlier. Mercedes-Benz used it in their 300Sl Gullwing in the 1950s. It's been primarily used in diesel engines ever since. But most U.S. drivers are not familiar with diesel passengers cars.
How does it work?
The combustion engine works by mixing air and gasoline and shooting it into the combustion chamber. Gasoline needs air, otherwise it won't explode. And you need a series of controlled explosions to get the pistons on the engine moving, which is what ultimately moves your car.
Direct injection sprays gasoline directly into the combustion chamber, while air comes in through a valve nearby. That results in what engineering geeks call a "leaner" burning process. In other words, the engine needs less gas to make the same powerful bang that pushes the pistons.
And because the gas doesn't have to travel as far to get inside the combustion chamber, it's cooler. And cooler gas can be compressed tighter to create more power. Think of it as kind of a Jack-in-the-box: If you push that guy down in the box harder, when you let go, he'll bounce back harder and higher than normal.
Why would I want it?
Because it gives you fuel economy and power at the same time. When GM introduced the Cadillac CTS in 2008, it offered one 3.6-liter V6 engine with direct injection, and one with standard fuel injection. The direct injection engine got 304 horsepower and the standard got 263 horsepower. But both engines got the same 26 miles per gallon fuel economy. That's as easy a real-world explanation of the value of direct injection as we can think of.
Is there any downside?
It costs a couple hundred dollars more to put it under your hood, because it's a little more complex to manufacture and uses some more expensive parts. It also needs a more sophisticated computer system to manage the engine and flow of fuel, further adding to the cost.
Automakers probably won't pass that cost on to consumers, because they're under a lot of pressure to meet higher fuel economy standards in the next few years. But the engines could be more expensive to repair if anything goes wrong.
What vehicles offer it?
Audi and Buick offer it on their full lineup. Volkswagen markets its models with direct injection engines with the initials "TSI." Ford calls its direct injection engines "EcoBoost", and luxury models like BMW, Lexus, Mercedes and Porsche offer it on most of their models. Ferrari offers the technology on the $230,000 458 Italia if you can afford that.
Bottom line
Direct injection is a true win-win for the internal combustion engine, offering both greater power and improved fuel economy.
Posted: Jan 19, 2012Ford's EcoBoost engines use direct injection technology (Ford).Gasoline direct injection is one of those technologies that make you think, "Why the heck didn't they figure this out sooner?" It's a simple fix to the regular old combustion engine, and it saves a lot of fuel. Instead of mixing air and gasoline outside the combustion chamber, the system sprays gasoline directly into the chamber. The result is literally more bang for your buck. (Don't worry, we'll explain this all in detail in a little bit).
Actually, engineers in the auto industry did think about it earlier. Mercedes-Benz used it in their 300Sl Gullwing in the 1950s. It's been primarily used in diesel engines ever since. But most U.S. drivers are not familiar with diesel passengers cars.
How does it work?
The combustion engine works by mixing air and gasoline and shooting it into the combustion chamber. Gasoline needs air, otherwise it won't explode. And you need a series of controlled explosions to get the pistons on the engine moving, which is what ultimately moves your car.
Direct injection sprays gasoline directly into the combustion chamber, while air comes in through a valve nearby. That results in what engineering geeks call a "leaner" burning process. In other words, the engine needs less gas to make the same powerful bang that pushes the pistons.
And because the gas doesn't have to travel as far to get inside the combustion chamber, it's cooler. And cooler gas can be compressed tighter to create more power. Think of it as kind of a Jack-in-the-box: If you push that guy down in the box harder, when you let go, he'll bounce back harder and higher than normal.
Why would I want it?
Because it gives you fuel economy and power at the same time. When GM introduced the Cadillac CTS in 2008, it offered one 3.6-liter V6 engine with direct injection, and one with standard fuel injection. The direct injection engine got 304 horsepower and the standard got 263 horsepower. But both engines got the same 26 miles per gallon fuel economy. That's as easy a real-world explanation of the value of direct injection as we can think of.
Is there any downside?
It costs a couple hundred dollars more to put it under your hood, because it's a little more complex to manufacture and uses some more expensive parts. It also needs a more sophisticated computer system to manage the engine and flow of fuel, further adding to the cost.
Automakers probably won't pass that cost on to consumers, because they're under a lot of pressure to meet higher fuel economy standards in the next few years. But the engines could be more expensive to repair if anything goes wrong.
What vehicles offer it?
Audi and Buick offer it on their full lineup. Volkswagen markets its models with direct injection engines with the initials "TSI." Ford calls its direct injection engines "EcoBoost", and luxury models like BMW, Lexus, Mercedes and Porsche offer it on most of their models. Ferrari offers the technology on the $230,000 458 Italia if you can afford that.
Bottom line
Direct injection is a true win-win for the internal combustion engine, offering both greater power and improved fuel economy.
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