header are one of the easiest bolt - on accessories you’re able to use to improve an locomotive ’s performance . The use ofheaders on a caris to make it well-to-do for the railway locomotive to push fumes gun out of thecylinders .
Engine Performance
When you look at the four - chance event cycle of anengine , you may see that the railway locomotive get all of itspowerduring the world power stroke . Thegasolinein the cylinder George Burns and expands during this stroke , return big businessman .
The other three strokes are necessary evil required to make the power stroke potential . If these three stroke consume power , they are a drain on the railway locomotive .
Back Pressure
During the exhaust stroking , a ripe way for an engine to lose baron is through back pressure . The exhaust valve opens at the offset of the exhaust system apoplexy , and then the Walter Piston pushes the exhaust gases out of the piston chamber .
If there is any amount of underground that the Walter Piston has to push against to pull the exhaust gases out , power is wasted . Using two exhaust valve rather than one improves the flow by make the hole that the exhaust fumes gas trip through larger .
Exhaust Manifolds
In a normal locomotive fumes system , once the exhaust gases leave the cylinder they end up in the exhaust manifold paper . In a four - cylinder or eight - cylinder locomotive , there are four cylinders using the same manifold paper .
From the manifold paper , the exhaust system gases run into one pipe toward thecatalytic converterand themuffler . It turns out that the manifold can be an important generator of back pressure level because exhaust gases from one piston chamber build up pressure in the manifold that affects the next piston chamber that uses the manifold paper .
How Exhaust Headers Work
The melodic theme behind an exhaust fumes header is to get rid of the manifold ’s back insistence . Instead of a common manifold paper that all of the cylinders share , each piston chamber gets its own exhaust pipe .
These pipes get together in a larger pipe call the collector . The individual pipe are edit and bent so that each one is the same distance as the others .
By build them the same length , it guarantees that each cylinder ’s exhaust fumes gases arrive in the collector space out as so there is no back pressure mother by the cylinders apportion the aggregator .
