I now want my car to go a lot faster

First off, if you guys haven't read my last post, I suggest you do because this is a continuation of the post before it. At this point now, you're going to need a lot of professional help. You'll also be spending a lot of money, even $20,000 isn't enough in some cases.

My best advice is that you shouldn't really waste you're money, unless you really really really want it bad. Most people I know realize that it's not worth it when it's far too late. That being said, lets talk about the big boys of aftermarket car products.

Aftermarket Engine Internals & Strokers: The engines internals is composed of 3 main parts:

1. Pistons
2. Rods
3. Crankshaft

These are usually the weakest parts of a car's powertrain, and the reason they need to be swapped is because factory internals aren't meant to push more than double its power. The factory parts simply lack the structural integrity required for mass amounts of power. Most factory cars have cast aluminum engine internals, and whats required for mass amount of power is FORGED internals.

briancrower.com
From the top: Crankshaft, pistons, rods

This picture is a forged internal set. These will allow you to push your cars power probably up to 4 or 5 times without you having to worry about a piston flying out of your hood and ending your cars life, or perhaps your own.

A stroked engine is the same as buying these aftermarket internals, except you would buy over sized pistons, and grind (STROKE) your cylinder walls to accommodate the bigger pistons. This creates more displacement (bigger engine) therefore allowing more fuel, which creates more combustible energy, hence more horsepower. Stroked engines are more difficult to tune because you have to adjust to the change in displacement, which requires very professional people that charge a lot of money, maybe around $2,000 just for a computer tune. The price of a set like this one can range from $3,000-$15,0000+. Usually the bigger the engine, the more expensive the parts are going to be. This set in the picture costs $10,000, and is for a 4.4 liter engine. 

Turbocharger/Supercharger & Turbocharger/Supercharger Kits:  This is considered the holy grail of all the tuning parts. These usually give you the highest power increase per part than anything else you could possibly buy. Turbos and superchargers are systems of forced induction, which is basically a mechanical system that forces more air into the cylinder, hence more fuel, hence more power. They both do the same thing essentially, but they do it in two different ways. A turbo uses the exhaust flow of your car to spin a turbine that pushes more air into the car, while a superchargers source of energy comes from the spinning motion of the engine itself. Both have their ups and downs, I will leave those details to be in my next post. The size of their turbines determines the power output, but there are pros and cons to both large and small turbines. To see what's best for your car, you will have to talk to a professional, or let me know what kind of car you have and I'd be happy to help you.

aacorvette.com/superchargers/
Vortech Supercharger

You can buy a turbo or supercharger by itself, but unfortunately they require many extra parts in order for them to be able to function. That is why many tuning companies provide turbo or supercharger kits. Be wary of bad or incomplete kits, so make sure you gets yours from a reputable company.

atpturbo.com
Garrett Turbocharger

turbomagazine.com
Average Turbo kit

Built Block: A built block is basically an engine built from scratch, ready to be abused with whatever you want to add on to it. These engines will usually start off as what your car engine was, and they are taken apart, inspected, and put back together with the best quality parts the company can provide. Some blocks are stroked, and some are just ported wherever possible, but they should always have completely forged internals. They are usually sold as short blocks, or long blocks. The difference between the two is that the short block does not include the engines head or heads. The heads contain the camshaft, valves, spark plug, and are usually situated right on top of an engines cylinders. There are many companies that make built blocks, and they will usually specialize in only car brand or two.

Picture rights to rallysportdirect.com
Cosworth Long Block (Boxer engine)

Before I conclude, I should mention that there are still hundreds of products and things you can do to make your car go faster. If I chose to mention them all it would take a lifetime. Things like larger fuel injectors, ported heads, larger valves, better clutch plates, differentials, intercoolers, weight reduction, larger tires, and short throw shifters, will aid in making your car go faster. These are only things i could think of off the top of my head right now, so you can imagine how long the list is. If anyone has any questions about any part, don't hesitate, I'd be glad to help.