Will running drag pipes hurt my Harley?
No it doesn’t. What you need is to rejet your carb. Most people throw intake exhaust on the stuff and expect it work because its not in the engine. reality is your motor is an air pump, restriction on either end means you a proper tune doesn’t need as much fuel (maybe the timing too).
Are drag pipes good?
Drags are fine if you run WOT all the time. They call em drag pipes cause that is what they are for. A bike running the salt flats might need them. They sure sound cool, but wide open pipes are noted for exhaust reversion which will really kill low end torque.
Are slip ons as loud as full exhaust?
The Pros: Slip-ons are affordable and transform the look of your exhaust system, giving you a custom look without the expense of a full custom motorcycle exhaust system. Your bike will be louder. Slip-on mufflers replace the noise dampening stock mufflers on your bike, giving you the loud rumble you love.
Which is better slip-on exhaust or full system?
The slip-on is the better option for those on a budget and only looking to enhance the sound of the bike while shedding some weight and increasing the power slightly. The full exhaust system, if you have the cash to spend, will deliver significant performance gains as well as a powerful sound.
Why do you need drag pipes on a Harley Davidson?
Getting the proper Harley sound always seems to require increasing the decibel level out the exhaust, with many riders installing drag pipes as the exhaust system for the proper sound. The rider often believes that by reducing back pressure in the exhaust system the engine will also increased power. This is wrong.
Can a stock exhaust system be changed to drag pipes?
As a resulting of changing a stock exhaust system to Drag Pipes, most engines promptly lose 5-10% of the power the engine produced. By properly re-jetting the carburetor and adding a free flowing air cleaner to an engine with drag pipes, the maximum horsepower produced will improve over the stock engine.
How big should the exhaust pipe be for a naturally aspirated engine?
When sizing exhaust pipe for a naturally aspirated engine the exhaust system should be able to flow about 2.2 cfm for every unit of horsepower. For example, if the engine produces 425 hp, the exhaust system should be able to flow about 935 cfm. For a single exhaust system, exhaust pipe diameter should be around 3.25 to 3.5 inches.
Where are the tips of exhaust pipes supposed to be?
If you plan to run a full-length exhaust system with the pipes exiting the rear, the tips should be flush with or slightly beyond the rear bumper. If the pipe (s) is not long enough, or if you want to enhance appearance, add a stainless steel or chrome exhaust tip to the exit of each pipe.
Getting the proper Harley sound always seems to require increasing the decibel level out the exhaust, with many riders installing drag pipes as the exhaust system for the proper sound. The rider often believes that by reducing back pressure in the exhaust system the engine will also increased power. This is wrong.
As a resulting of changing a stock exhaust system to Drag Pipes, most engines promptly lose 5-10% of the power the engine produced. By properly re-jetting the carburetor and adding a free flowing air cleaner to an engine with drag pipes, the maximum horsepower produced will improve over the stock engine.
How is the optimum exhaust pipe design determined?
Since optimum pipe design is determined by an engine parts combination and its most important rpm range, having a basic understanding of the exhaust process will provide you with valuable information for selecting your next exhaust system. The exhaust system is an integral part of the components that regulate airflow through the engine.
What’s the best way to tune a drag pipe?
You can tune the baffle by changing the angle of the thumbscrew or washer to the exhaust pipe. For maximum torque, the washer will be at 90 degree angle to the pipe. For maximum horsepower the washer will be parallel to the pipe. How well does this work?