Supercharged vs. Turbocharged
In the world of high performance engine parts there is probably no other topic
more debated than superchargers vs. turbochargers. In a fast paced world of automotive
ingenuity, both of these products prevail in horsepower production. Compared to other
possible engine modifications, these modifications remain on the top of the list for
creating power. Many different things need to considered when comparing these two
modifications, such as how they work their cost, fuel economy, durability, and generated
horsepower.
Both superchargers and turbochargers are forced induction systems and thus have
the same objective - to compress air and force more air molecules into the engine's
combustion chambers with more pressure than would normally be allowed at atmospheric
pressure here on Earth (14.7 psi at sea level). The benefit of forcing more air molecules
into the combustion chambers is that it allows your engine to burn more fuel per power
stroke. With an internal combustion engine, burning more fuel means that you convert
more fuel into energy and power. For this reason, supercharged and turbocharged engines
normally produce 40% to 100%+ more power (depending on the amount of boost). Boost is any pressure above atmospheric pressure in the intake manifold. When there is more air pressure in the intake manifold that means that there can be more fuel pressure as well. The higher pressure in the combustion chamber means that the
explosion used to move the pistons up and down is greater however this pressure has to resist combustion in order to achieve
more energy from the power stroke. A resistance to combustion is achieve
d through the type of gasoline used. There are uasually three different types of gasoline avaible at most gas stations and their resistance to combustion is represented by the octaine number shown at the pump, for instance 87, 89, and 92. The higher the number, the higher the resistance to combustion.
The cost of supercharger or a turbocharger system for a specific engine is
approximately the same, so cost is generally not a factor. If one is interested in purchasing a super of turbo charger, they should expect to spend approximately 2,500 dollars for a quality product. There are companies that offer these parts for as little as 1,500 dollars, however the reduced price comes with a cost not in a dollar amount. One thing that should be considered is that you get what you pay for.
There are many internal parts to the injector. Starts with a barrel then moves down to a plunger then there is a check valve, below that is a spacer with the nozzle springs inside of it, lastly is the nozzle. All of these parts have specific and unique jobs. Nozzle has a needle in it that works kind of like a piston that once the pressure build up the needle forces forward and sprays fuel. There is a spacer above the nozzle with the nozzle springs that force the needle down. Above the spacer is a check valve, the check valve allows the right amount of fuel into the nozzle. The plunger and barrel are located above the check valve. It has a spring on the plunger that has to hold resistance of the pressure until it reaches the correct amount before it will let the injector fires. There is two internal o-rings one that is around the plunger and one that sets between the nut and body.
Turbo chargers are very efficient in giving extra power to engines, even though they do make your auto burn more fuel. All the components of turbos are important in the function of them. Turbo chargers will really make your life better especially if you are on the racing track.
So how about Honda cars? Why does the turbocharger seem to be the definite forced induction of choice for these small inline fours that barely have enough displacement to hold a two litre bottle of soda?
reduced, all drivers see his or her fuel economy go up. When drivers fill up less, then it
As you are driving, you see many cars going over the speed limit. Many of the drivers are into racing and modifying their cars. In most cars there are two major modifications that can be done, they are; turbo kit, or a nitrous kit. Both increase horsepower dramatically, but one is instant and the other goes into effect after a certain rpm.
Catalytic converters work best when warm, so some car manufacturers are putting "pre cats" in the exhaust manifold to convert the gasses while the exhaust system is still warming up.
The pressure exerted by any gas or mixture of gasses in an enclosed space is directly proportional to the number of atoms or molecules of gas regardless of their size or molecular mass. Reference to the above reaction shows that, as the reaction moves to the right the number of molecules and hence the pressure decreases. Therefore the reaction moving to the right (i.e. towards the product required) is favoured by an increase in pressure.
Automotive gasoline and gasoline-oxygenate blends are used in internal combustion spark-ignition engines. These spark ignition engine fuels are primarily used for passenger cars. They are also used in off-highway utility vans, farm machinery and in other spark ignition engines employed in a variety of service applications.
The operation of turboprop applies the gas turbine operation with utilization of a propeller except that the exhaust is not being discharged on the nozzle for thrust but used to power and drive the turbine.
so they could compress the air at a much higher pressure so the engine can
Turbos have many advantages over superchargers. One being that the turbo uses the exhaust gas of your engine to spin or spool up the turbine to create pressurized air. This
Numerous upgrades are included at the HSE level, justifying the $7,000 price premium over the standard model. Add $2,000 more to acquire the turbodiesel engine. This model brings in fog lamps, a sliding panoramic roof with a power blind, 20-inch aluminum-alloy wheels, Oxford leather seats, and heated rear seats.
"You can see that it is difficult to say which is better. The main advantages to supercharging are low-end response and simplicity. The main advantages to turbocharging are efficiency and the realization of maximum power. It is up to the vehicle owner to decide which solution is best for him or her" (Turbocharger or Supercharger).
Sirignano, W. A., & Liu, F. (1999). Performance increase for gas-turbine engine through combustion inside the turbine. Journal of Propulsion and Power, 15(1), 111-118.
This along with the lighter construction of a two-stroke makes it the preferred motor used in small vehicles and tools (Two Stroke Engine). A two-stroke engine is operated by first drawing the mixture of fuel and air into the chamber by the vacuum caused by the upward stroke of the piston. During the downward piston stroke, the poppet valve is forced closed due to the increased pressure within the chamber. The mixture is compressed in the chamber throughout the stroke. As the stroke ends, the intake port is exposed allowing the mixture to escape into the main cylinder, expelling the exhaust gasses in the process and some of the fuel mixture as well. Momentum then causes the piston to rise, compressing the mixture as another stroke is beginning. Once the stroke reaches its peak, the spark plug will ignite the mixture causing the fuel to expand driving the piston down thus completing the cycle while additionally initiating a new