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performance Harley-Davidson has been the subject of many books. Many of these books go into great detail, down to the nuts and bolts. Our goal is to help you to understand and define what services you need and what is necessary to make that power.

WHAT IS PERFORMANCE
Harley-Davidson performance means different things to different drivers. For some, it is only a matter of a little more power and better sound from their Harley. Some want the 100 hp or more for the traffic light to traffic light running. Or they want in one of these Dyno pulls. That is all good, but if your engine, very much, can you have any problems with the heat, noise, maintenance, reliability and rideability. Most Harley riders must be at the low to medium speed range.

If your bike is a lot more power, you are likely to drive them faster and harder. If you go Harder you might want to think about you, your brakes and suspension.

POWER DOWN
When you talk about the power, do you torque, horsepower, or both? Torque is twisting force. It is the low-rmp twisting power that gets you moving. HP is the high-spinning power that keeps you moving.

If you are the difference between a Harley-Davidson V-Rod and a regular Harley Twin Cam 96, you will see that the V-Rod with his "1200cc engine produces a lot more horsepower than the Twin Cam 1584cc, but less torgue .

The V-Rod, this PS buy spinning faster. The V-Rod is able to rotate faster, as the "four valves per cylinder and two overhead cams. Basically it's because of the V-Rod total respiratory capacity.

The traditional Harley-Davidson Twin Cam and V-Rods have very different characteristics that result in different performance classes of features. Most Harley riders will stick with their big V-Twins, even though the V-Rod makes more horsepower. I've ridden V-Rods and not like the way they are treated.

HARLEY-DAVIDSON PEFORMANCE BASICS
An internal combustion engine is basically an air pump. The faster you spin it, the more air IT processes within a specified time. The amount of power produced by the flow amount of fuel it burns, which depends on the amount of air to breathe. More air means more power. Turnning the engine speed is also on the air and fuel and cause it to get more power.

The compression is also a factor. The more an engine compresses air into the combustion chamber, the more fuel can be used in any firing air-fuel charge. Ignite more fuel, more power. Changing compression ratio can be much more than bolting on a few parts.

USING what you have
Harley-Davidson performance can be increased by with what you have. This is usually done by bolting on a set of slip-on mufflers and a high-flow air filter, along with remapping the fuel injection or carburetor Re-rays. The costs are about $ 1,000 in parts and labor. The profit is usually about 10 hp.

The next step is to replace the stock cams with the higher lift and longer duration. Through the installation of cameras with more lift (more valves open) and with longer duration (more valves to be opened), it is also possible to a large increase in performance from your engine. This can be done without the head. Depending on the cam, it might be necessary, the valve springs. These changes may be a stock of Harley-Davidson about 65hp to 85hp.

The point about this would mean that in the engine. Now you are talking rather than stock cylinders, pistons, heads and other parts, which together with her. It would add a bit more power, but also to some serious money. These serious money you get 100hp or more.

IGNITION
A stock Harley-Davidson ignition to prevent engine damage and work with the restrictions by the government. Prevention of damage obviouisly engine protects your investment, with the warranty.

The ignition module does this by allowing the engine rpms of detonation sensors. An aftermarket module can retard the spark and more pressure on the lower speeds. Some ignition modules are adjustable and have a variety of curves ahead. These units are at a price of $ 200 to $ 500 If you really hop to an engine, an ignition module can unleash more power.

USable POWER
Let us where you want to power. Remember, torque is the twisting / pushing power that is at the lower speed range and PS occurs at higher speed range. For most Harley-Davidson riders, they make very little sense to try to ensure the engine power to the 4000 to 6000 rpm range, where most of your horse riding occurs between 2000 to 4000 rpms, especially when they have a negative impact torgue. You can be good low to mid-range Harley-Davidson performance without many changes.

If you have a better performance Harley-Davidson expected to spend money. Depending on the level of performance, it could be very serious money.

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Written by Brian Harley Riders Guide.com Copyright http://www.harley-riders-guide.com