Skip to main content

Facts about used car price myths and the value of web-based used cars

  "My car is worth $ 25,800." "I looked up the price of a used car online, and my car is worth 20 grands." I hear quotes like this every day. .. I know ... 80% of car buyers use the internet to research car and used car prices. The internet is perfect for vehicle research! When it comes to car prices, the internet is the worst! It's terrible because the price doesn't reflect the reality of either the buyer or the seller. Car-related websites have caused more confusion than ever: "My car is worth $ 25,800." "I searched the internet for used car prices, and my car is 20 Grand. It's worth it. "I hear quotations like this every day. We hope that our values ​​are genuine for our customers. By “real” I mean a viable number according to market value.As hard as it is to accept, even for me as a dealer, what we think a car is worth, and what it’s actually worth according to “market value” is often drastically different.To find a vehicle’s v

How Turbochargers Work



When people talk about race cars or high-performance sports cars, the topic of turbochargers usually comes up. Turbochargers also appear on large diesel engines. A turbo can significantly boost an engine's horsepower without significantly increasing its weight, which is the huge benefit that makes turbos so popular!
In this article, we'll learn how a turbocharger increases the power output of an engine while surviving extreme operating conditions. We'll also learn how wastegates, ceramic turbine blades and ball bearings help turbochargers do their job even better. Turbochargers are a type of forced induction system. They compress the air flowing into the engine (see How Car Engines Work for a description of airflow in a normal engine). The advantage of compressing the air is that it lets the engine squeeze more air into a cylinder, and more air means that more fuel can be added. Therefore, you get more power from each explosion in each cylinder. A turbocharged engine produces more power overall than the same engine without the charging. This can significantly improve the power-to-weight ratio for the engine (see How Horsepower Works for details).

 Turbochargers and Engines

One of the surest ways to get more power out of an engine is to increase the amount of air and fuel that it can burn. One way to do this is to add cylinders or make the current cylinders bigger. Sometimes these changes may not be feasible -- a turbo can be a simpler, more compact way to add power, especially for an aftermarket accessory.
Turbochargers allow an engine to burn more fuel and air by packing more into the existing cylinders. The typical boost provided by a turbocharger is 6 to 8 pounds per square inch (psi). Since normal atmospheric pressure is 14.7 psi at sea level, you can see that you are getting about 50 percent more air into the engine. Therefore, you would expect to get 50 percent more power. It's not perfectly efficient, so you might get a 30- to 40-percent improvement instead.

 Turbocharger Design

 How a turbocharger is plumbed in a car
The turbocharger is bolted to the exhaust manifold of the engine. The exhaust from the cylinders spins the turbine, which works like a gas turbine engine. The turbine is connected by a shaft to the compressor, which is located between the air filter and the intake manifold. The compressor pressurizes the air going into the pistons.
Inside a turbocharger
Inside a turbocharger
Image courtesy Garrett
The exhaust from the cylinders passes through the turbine blades, causing the turbine to spin. The more exhaust that goes through the blades, the faster they spin.

 Turbocharger Parts

One of the main problems with turbochargers is that they do not provide an immediate power boost when you step on the gas. It takes a second for the turbine to get up to speed before boost is produced. This results in a feeling of lag when you step on the gas, and then the car lunges ahead when the turbo gets moving.
One way to decrease turbo lag is to reduce the inertia of the rotating parts, mainly by reducing their weight. This allows the turbine and compressor to accelerate quickly, and start providing boost earlier. One sure way to reduce the inertia of the turbine and compressor is to make the turbocharger smaller. A small turbocharger will provide boost more quickly and at lower engine speeds, but may not be able to provide much boost at higher engine speeds when a really large volume of air is going into the engine. It is also in danger of spinning too quickly at higher engine speeds, when lots of exhaust is passing through the turbine.

 Using Two Turbochargers & More Turbo Parts

Some engines use two turbochargers of different sizes. The smaller one spins up to speed very quickly, reducing lag, while the bigger one takes over at higher engine speeds to provide more boost.
When air is compressed, it heats up; and when air heats up, it expands. So some of the pressure increase from a turbocharger is the result of heating the air before it goes into the engine. In order to increase the power of the engine, the goal is to get more air molecules into the cylinder, not necessarily more air pressure.

More Great Links




Comments

Popular posts from this blog

Tools & Utilities check up - Tips to buy a Used Car

A person who cannot afford to buy a new car can always move ahead and buy a used car. Buying a car no doubts requires a lot of money but that does not mean that only rich can buy it. Always remember the success of buying a used car is to do your research before you buy it. You will have to prepare yourself for all the stress if you are looking for a perfect deal. Make sure that you are with the best used car dealer who will ensure you the best deal. You need to go through the following information before buying a used car. 1) Always decide the budget you can afford to buy the car. Since you are buying the used car always include price of the Car, repairs and maintenance cost of the car, Car insurance and so on. 2) Decide the Car you would like to buy. The best option would be to go for a mid-sized car as these cars are available at great bargains. 3) Used cars may be covered by a manufacturer’s warranty or a separately purchased service contract. However note that they may not be

Facts about used car price myths and the value of web-based used cars

  "My car is worth $ 25,800." "I looked up the price of a used car online, and my car is worth 20 grands." I hear quotes like this every day. .. I know ... 80% of car buyers use the internet to research car and used car prices. The internet is perfect for vehicle research! When it comes to car prices, the internet is the worst! It's terrible because the price doesn't reflect the reality of either the buyer or the seller. Car-related websites have caused more confusion than ever: "My car is worth $ 25,800." "I searched the internet for used car prices, and my car is 20 Grand. It's worth it. "I hear quotations like this every day. We hope that our values ​​are genuine for our customers. By “real” I mean a viable number according to market value.As hard as it is to accept, even for me as a dealer, what we think a car is worth, and what it’s actually worth according to “market value” is often drastically different.To find a vehicle’s v

Timing Belt Automotive Repair Tips

One of the most overlooked parts of a vehicle, and one of the most common automotive repairs is the timing belt. Your car’s timing belt may look like an accessory, but the fact is that if it fails, your car will suddenly stop, and, if you’re lucky, you will find yourself stranded on the side of the road waiting for a tow truck.Timing belts are typically made of nylon reinforced rubber, with square teeth located on the inside surface. While you drive, the belt transfers the rotation of the crankshaft the camshaft, which in turn activates the valves that provide air and fuel to the cylinders and expel combustion gases to the exhaust system. Inside your car, the valves and pistons move up and down rapidly, and most engines are not built to allow clearance between a valve that is down and a piston that is up and this is where the timing belt comes in, since it is what keeps the valves and pistons for colliding. If your timing belt fails, and a collision occurs, the damage to the cylinde