Performane Parts
In the following page their will be a list of many different things that you can do with the engine of your car to make it run quicker, with just a couple of screws. Some of these changes only require screws, but other require to change the pistons, valves, crankshafts, and there might be a chance of having to bore and stroke the engine. All these words will be defined during the course of this page.

Parts of an internal combustion engine	What they do	Ways to improve
Pistons	Move the crankshaft	Boring and stroking is the process to make these pistons bigger. The bigger the pistons are the more power you will get out of the engine.
Crankshaft	Moves Transmission	Made of lightweight material
Transmission	Connects the crankshaft to the axle with a series of gears	Smaller gears makes for quicker acceleration
Valves	Let gas and air in and let carbon monoxide out out	Make them bigger for easier flowing
Muffler	This is the path that the carbon monoxide takes until it reaches the catalytic converter	Make it larger for quicker are flow
Catalyitic Converter	Changes the carbon monoxide into other chemicals, which are, safer for the enviroment	Put in a high flow converter which makes quicker air flow and a faster car
Headers	This is the stock part of an engine that the carbon monoxide flows out of first as soon as it exists the engine	Change it for a manifold
Manifold	A manifold is the part that replaces a Header and it is used for quicker air flow	This is the best part for this process of the engine.
Ignition cables	Ignites the fuel in the cylinder to move the piston which moves the crankshaft	Better conductive cables making the spark move quicker through the cables. Inginting the fuel quicker makes the pistons pump faster making the crankshaft spin faster making the axle spin faster quicke, moving the car to high speeds
Spark Plugs	These are the pieces that make the spark inside the cylinder making the piston move up and down	Install platinum spark plugs which make a bigger spark and they last a lot longer.

Now that you know the main parts of an internal combustion engine, im going to list out parts you can bolt on to your car that didn't exist on the engine before. They aren't many things, but these are the ones that will give you the biggest change in your car. The bigger the change the higher the price.

Part name	What is does	Estimated amount of power in Horspower
Nitrous Oxide	Injects Nitrous Oxide into the cylinders making the gas mixtures more explosive, moving the pistons at very high speeds with just a flick of a switch. This part is only engaged when wanted to.	Anywhere from 25 to 150
Turbo	This forces air into the engine in a quicker way therefore the mixture of gas and air inside the cylinder is a lot richer. The richer the mixture the more explosive it turns out to be, moving the pistons at a higher speed than with usual air intake.	Anywhere from 25 to 150
Supercharger	This is another way of forcing air into the engine, it works like a turbo, but the turbo creates pressure in itself than shoots it all into the cylinders. A supercharger works with the belt of the car engine, so it is always forcing air into the engine.	Anywhere from 25 to 250
Intercooler	Cools down the engine by replacing the radiator and placing in a much more efficent way of cooling. The way this work is by cooling down the turbo fan, so the air that is forced into the cylinder is colder than usual. An intercooler can only be placed on a turbo charged car.	Anywhere from 25 to 50

Now that you know everything that can be done to the engine you must understand what else you can do to the car. On the body of the car there are so many things you can do. You can put on spoilers, scoops and many other things. To be able to learn what spoilers and scoops do, you have to learn what they are. A spoiler is like a plane wing that has been inverted to keep the car on the ground, this is called downforce. To know what donwforce is you must learn what drag is. Drag is the wind force put on an object at high speeds. Drag is created when the car hits the wind and the wind slows the car down because of the power it takes to "rip" through the wind at high speeds. A scoop is a like a hole on the side of the car that moves air into the car to cool down certain things. These scoops are mainly used for brakes, radiators and intercoolers. These are the parts of the car that mostly heat up and without these scoops these parts would get to hot and most likely melt.

Body Peice	What it does	How it affects the car
Spoiler	Keeps the car on the ground and prevents it from flying off the ground at high speeds	This has its up and down sides. This peice on the car keeps it on the ground at high speeds so it is good for that, but it creates a lot of drag on the car. That is why you don't want too big of a spoiler on your car. If the spoiler is to big on a slow car then the car will go even slower because of the drag that the spoiler creates.
Scoops	It takes the air going around the car and moves it into the car and the air travels to either the brakes, radiator or intercooler. The intercooler as said above removes the radiator, so there is no need for a scoop.	These scoops help to cool the car down, but they break up the aerodynamics making drag making the car go slower. These scoops are good and bad. Some high speeds cars like Ferrari's have scoops, but these are very well made and don't break up wind patterns because Ferrari knows what they are doing.

If you want to get your car to brake very well then you have to change the brakes. In the table below you will see a list of brakes that can be put on the car and how each one affects the car.

Kind of brake	How they are made	Size
Vented	These are made with 2 pieces of metal with not joined together in the middle. The space in the middle is used to cool the brake while it is spinning	These range from 5 to 8 inches
Slotted	The same as the vented, but not only do they have the vented they are also cut across one of the metal sides and cut into the vent. That way the hot air will leave the brake quicker.	These range from 5 to 12 inches
Cross-Drilled	This is made the same way as all other brakes, but these ones have holes drilled into them for quicker cooling. These holes are used to let air flow through the brake and out through the vents the same way the slots work. Brakes can have all of these things put together in one and you'll have a car that brakes from 100-0 in only 150 feet.	The cross-drilled slotted vented brakes come from 8-13 inches.

The next thing that you can change on your car for more performance can be the wheels. Wheels come in a large variety of sizes and categories. You can be cheap H rated tires of you can buy DOT rated tires which are used in racing cars. If you want the best grip on your car than the best tires to buy are the Z rated tires. The problem with these tires is that they only come in low profiles. This means that they have very little rubber on the wheel. If you want Z rated tires than you have to buy rims, which are the wheels without the rubber, of about 17 inches. These don't come cheap, but for the differences in handling it is worth it.

Tire Rate	Profile	Rim Sizes
H	Large	Ranging from 13-15 inches
H-L	Smaller than H but still pretty thin	Ranging from 14-16 inches
L-Q	From here everything starts to get thinner	Ranging from 15-17 inches
Q-U	Tires now are pretty thin	Ranging from 16-18 inches
U-Z	These are the thinnest tires, hence they are the best	Ranging from 17-20 inches

The next part that can be upgraded on your car are the Stablizer bars and the suspension. These 2 go hand in hand. The Stablizer rods are used to keep the car balnced on the road when making a quick turn. Suspension is used to make the car lower to the ground and make the springs harder that way the car will sway less. When a car is lowered it will go faster because there is less air or depending on how low you put it there is no air under the car. The air under the car creates lift and lift is a bad thing at high speeds because lift will cause the car to get off the ground and fly up and who knows what will happen from there.

Toughness of suspension spring	What is does to the handling	What it does to the smoothness of ride
Soft Spring	The car will not make good turns at high speeds	The ride of the car will be very smooth and not bumpy at all
Medium Spring	The handling of the car will be improved, making it possible to make quicker faster turns	The ride of the car will not be as smooth as the soft springs because with harder springs the car tends to bounce more
Hard spring	The handling of this car will be great it will be able to take quick turns and barely any swaying	The smoothness of this car will not be good at all because it will be very bumpy and the car will start to get annoying after a while

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