A four point cam lobe positioned on the exhaust camshaft drives the 2.0T EA888 Gen 3’s Hitachi Generation III HPFP. As engine velocity increases, so does the pump’s skill to displace a higher volume of gas per minute. The utmost volume the pump can ship per revolution on the four point cam lobe is dictated by the stroke size from the cam lobe’s raise and bore diameter of the pump’s internal pressurizing cylinder, which is increased when upgrading to an APR HPFP. It’s essential to grasp, regardless of the name, APR’s HPFP upgrade is not essentially designed to extend the engine’s gas rail pressure. The first purpose is to extend the quantity of available fuel.
How the direct injection fueling system works
The engine’s fueling system can operate to a most of over 2,900 psi (200 bar) of stress to correctly spray and atomize gas straight into the engine’s cylinders. That is in distinction to multi-port injection automobiles of the past which usually operated round forty-60 PSI supplied by a low stress gas pump. To generate these huge pressures, the 2.0T EA888 Gen 3’s variable low stress gas pump provides gas to a cam driven and solenoid fired HPFP which in flip provides the injectors with fuel.
APR was an OEM provider of HPFP parts to VAG and has operated with a virtually perfect tract file for the reason that program's motorsport backed inception in 2006. With thousands of pumps bought, APR has a wealth of data and manufacturing methods utilized within the manufacturing of crucial fueling parts with exceptional reliability.
In the early 2000’s, VAG started supplying engines with a new direct injection technology often known as FSI. In contrast to standard engines of the past, gas is sprayed straight into the cylinders under excessive stress resulting in increased power with decrease consumption rates and fewer emissions. The technology has unfold across VAG’s entire lineup of contemporary gasoline engines and is current within the 2.0T EA888 Gen 3.