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Honda K24A4 2.4L DOHC i-VTEC Engine installed in 2003 Honda Accord. The Honda K-series engine is a line of four-cylinder four-stroke car engines introduced in 2001. The K-series engines are equipped with DOHC valvetrains and use roller rockers on the cylinder head to reduce friction.
Direct acting DOHC, 16 valves, continuously variable MIVEC intake and exhaust valve timing: Compression ratio: 9.0:1, 10.0:1, 10.5:1, Combustion; Turbocharger: On some versions: Fuel system: Fuel injection: Fuel type: Gasoline: Cooling system: Water-cooled: Output; Power output: From 140 to 446 PS (103 to 328 kW; 138 to 440 bhp) Torque output
A Honda K24A Engine with i-VTEC. VTEC (described as Variable Valve Timing & Lift Electronic Control, but stands for Valve Timing Electronically Controlled) is a system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine, resulting in higher performance at high RPM, and lower fuel consumption at low RPM.
A blowoff valve is designed to release pressure in the intake system when the throttle is closed. A "recirculating" type blowoff valve releases the pressurised air back into the non-pressurized section of the intake (i.e. upstream of the turbocharger), while an "atmospheric venting" type blowoff valve dumps the air directly into the atmosphere.
Using a turbocharger spool valve to increase exhaust gas flow speed to the (twin-scroll) turbine; Using a butterfly valve to force exhaust gas through a smaller passage in the turbo inlet; Electric turbochargers [51] and hybrid turbochargers. A similar phenomenon that is often mistaken for turbo lag is the boost threshold. This is where the ...
It features some of the latest engine technology such as direct fuel injection, sintered camshaft lobes, thin-walled engine block, variable valve timing and lift for intake and exhaust valves, downstream oxygen sensors, exhaust manifold integrated into the cylinder head, exhaust gas recirculation and cooling, distributors coil-on-plug ignition ...
The valve springs feature a beehive shape and smaller retainer. The reduced weight and spring load further help lower friction and improve fuel economy. The valvetrain is driven by a silent-type, maintenance free steel timing chain that replaces a roller-type timing chain: The optimized design greatly reduces impact forces and noise when the ...
Usually the flow is from the tank to the pump inlet and PRV, pumped to main oil filter or its bypass valve and oil cooler, then through some more filters to jets in the bearings. Using the PRV method of control, means that the pressure of the feed oil must be below a critical value (usually controlled by other valves which can leak out excess ...