1>increase the number of valves.
2>make the inlet valve big
1282kg/s
if you see volumetric efficiency is compared with the swept volume of compressor without considering the clearance which is normally 5% of the swept volume so you can say 95% is the max. vol. eff
Turbocharger volumetric efficiency refers to the effectiveness with which a turbocharger can compress and deliver air into an engine's intake system relative to the engine's displacement and operating conditions. It is a measure of how well the turbocharger fills the engine's cylinders with air, impacting the engine's power output and performance. Higher volumetric efficiency indicates that the turbocharger is effectively increasing the amount of air, thus allowing for more fuel to be burned and improving overall engine efficiency. Factors affecting volumetric efficiency include the design of the turbocharger, engine speed, and the temperature and pressure of the intake air.
More revolutions, more capacity or PORT AND POLISH
All turbochargers compress air to increase the volumetric efficiency of an engine.
The supercharger, which uses a belt, driven by the engine, to forcer more air into the intake manifold, and a turbocharger, which uses a turbine driven by exiting exhaust gasses, to do the same thing.
Volumetric efficiency in mechanics refers to the actual volume of air-fuel mixture drawn into the cylinder of an internal combustion engine compared to the theoretical maximum possible volume. It is a measure of how effectively the engine can fill its cylinders with the air-fuel mixture during the intake stroke. A high volumetric efficiency indicates better engine performance and power output.
Volumetric efficiency is a figure associated with every engine, 2 stroke, rotary, 6 stroke, etc. it isn't as common to see VE used in 2-stroke topics because most builders these days use figures that are more useful for the tasks at hand. Volumetric efficiency is almost an implied thought or a sub-conscious topic; more of a task than a means.
The volumetric efficiency of an engine ( It's ability to breathe ) can be found by finding it's C.I.D. the mathematical formula for Cubic inch displacement is "Bore x Bore x Stroke x .7854 x The # of cylinders".
To increase an engines Hp/Tq, by increasing it's volumetric efficiency ( how much air/fuel is in the cylinder).
In IC engine, the inlet valve is always larger in diameter as compared to exhaust by 20-35 % in dia. to improve the volumetric efficiency and to achieve good power and performance even at high speed by overcoming the blow losses.
Reduction in power density. Power density is the power produced by the engine per volume unit. Reduced volumetric efficiency means that less air/fuel will be delivered to the engine for a specific engine volume.