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.

Harley davidson exhaust back pressure. The holes are designed to help dampen and break the sound wave. Back pressure helps to cool the exhaust valve as well as. 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.

Discussion in Engine Fuel and Exhaust started by marknett Jun 2 2011. Internally the louvered core provides the bark and back pressure needed to make your bike run as well as possible. Backfire on deceleration or acceleration on a Harley Davidson is due to the burning of excess fuel in the carburetors intake port.

The end of the hose is supposed to suck and the exhaust is supposed to blow. Vance Hines claims that the Adventure Hi-Output can produce reduced back pressure compared to the stock exhaust along with reduced power-robbing popping. Performance and style with unbeatable value.

A common belief is that by reducing back pressure in the exhaust system you will automatically gain. We got our start making exhaust pipes for the V-ROD and now make exhaust for all of the Harley-Davidson and Indian Platforms. When the two are equal the system is flowing almost perfectly but nothing is perfect in the real world except hummingbirds.

Forums General Tech Harley Davidson Engine Fuel and Exhaust exhaust cones. The worst you can do is free up some air movement - which is. A lean air or fuel mixture from the carburetor of a Harley Davidson results from drastic changes in the pressure.

Thats what loses the power. 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. Pass me a Shiner Bock.