Harley Davidson Exhaust Back Pressure

The head pipes measure around 134 inches and 24 pounds in weight.

Harley davidson exhaust back pressure. Back pressure helps to cool the exhaust valve as well as. Forums General Tech Harley Davidson Engine Fuel and Exhaust exhaust cones. The end of the hose is supposed to suck and the exhaust is supposed to blow.

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. There is no mistaking the sound of a Harley motor with straight pipes. Discussion in Engine Fuel and Exhaust started by marknett Jun 2 2011.

On the market today they range from about R6000 up to as much as R20 000. 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. Harley Davidson is developing a dynamic exhaust system design that redirects exhaust gases depending on engine RPM and throttle opening.

The most common part replaced on a new Harley-Davidson motorcycle is the exhaust system. The holes are designed to help dampen and break the sound wave. Due to EPA regulations often times getting your bike to sound like a Harley means you need to make it louder.

Considering how much the stock exhaust chokes the motor any open baffle system around 1 34 inches would suffice. If the arrival of the negative reflected pressure wave at the exhaust valve can be arranged to occur during the later part of the exhaust cycle the resulting lower pressure will enhance the removal of exhaust gas from the cylinder. Internally the louvered core provides the bark and back pressure needed to make your bike run as well as possible.

When installed inside the head pipes these cones act to repel the pulse waves as they return to the engine and alter velocity as the gas passes through the narrower passage. If you are like most Harley-Davidson owners you like the look and sound of a straight exhaust with no mufflers. Vance Hines Titan 450 Slip On Harley Davidson Exhaust.