Harley Davidson Exhaust Back Pressure

Cobra 909 Uppercut Slip On Harley Davidson Exhaust.

Harley davidson exhaust back pressure. The back pressure is the negative half of the sign wave the exhaust flow is the positive half of the sign wave. Back pressure helps to cool the exhaust valve as well as. Considering how much the stock exhaust chokes the motor any open baffle system around 1 34 inches would suffice.

Vance Hines claims that the Adventure Hi-Output can produce reduced back pressure compared to the stock exhaust along with reduced power-robbing popping. Expert Gear Advice From Riders. Besides breaking the engine noise exhaust baffles also help to create back pressure inside the exhaust system.

The first item to get modified or changed on most new Harley-Davidson motorcycles is the exhaust system. On the market today they range from about R6000 up to as much as R20 000. Deeper sensor than those in most systems.

So it states that the reflected pressure wave Back pressure enhances the removal of exhaust gasses. With single pipes what is important is pressure wave tuning each exhaust pulse sets up a pressure wave that bounces back and forth between the port and pipe end. But back to riding without a baffle.

Thats what loses the power. The most common part replaced on a new Harley-Davidson motorcycle is the exhaust system. The end of the hose is supposed to suck and the exhaust is supposed to blow.

The rider often believes that by reducing back pressure in the exhaust system the engine will also increased. Pass me a Shiner Bock. Some owners believe that by removing the mufflers and installing straight pipes they are decreasing extra back pressure from stock muffler baffles and creating more horsepower.