Below is a graph which shows the airflow through a particular turbo on the horizontal axis, and the pressure ratio on the vertical axis. Bear with us, we’ll try to keep things simple. To explain it properly, we need to delve into the physics of turbocharging. Keeping things working as they were intended is more important than ever.Ĭompressor surge is a real thing, not something Turbosmart made up to sell blow-off valves. The inertia of these high-speed spinning wheels means that when a rapid change of speed is demanded from the system, enormous load is placed on bearings and rotating components that operate under tight tolerances. This whole process requires the shaft at the center of the turbocharger to spin extremely fast, and it’s only getting quicker with newer designs and increased efficiency, although the speed reached depends on the size of the turbo wheels. The more air we put into our engine, the more power it can produce. It does this by using the energy in wasted exhaust gas (on the turbine side) to spin a turbine wheel, which then (on the compressor side) pulls cold, fresh air in and pressurizes it for our engine to consume. Turbo basics: exhaust energy used to create positive airflow (boost)Ī turbocharger is an air pump, that is, it is a mechanical component that pushes air.
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