Exhaust System Technology: Science and Implementation of High Performance Exhaust Systems
An interesting technical article on engines, which got me thinking about exhaust systems. There are numerous companies around the world who market header systems for naturally aspirated engines, some claiming anything up to 15% increase in Hp. But has anyone tried it with a turbocharged engine.
Looking at a typical Chieftain, Cirrus turbo engine shows the exhaust primary tube is a simple log type manifold. One would assume there would be loots of counterproductive interference with the exhaust pulses. I was wondering about the efficiency of these OEM exhausts and do they cause a little or significant increase in fuel consumption compared with a perfect header type system.