OUJIAXIN Engine assembly EA111 is suitable for 1.4T Volkswagen Magotan Sagitar Lavida CFB CFBA DAG DAGA CSTA

Description

The EA111 series of internal combustion engines was originally developed by Audi under the direction of Ludwig Kraus and introduced in the Audi 50 in 1974, shortly afterwards in the original Volkswagen Polo. It is a range of water-cooled inline three-cylinder and inline four-cylinder petrol and diesel engines in a variety of displacements. This overhead cam engine has a cross-flow cylinder head design. The camshafts are driven by a toothed belt on the crankshaft, which also provides drive for the coolant pump. The oil pump is directly driven by the crankshaft, and the gasoline pump and distributor are driven by the camshaft. Other “V” belt drive accessories include the alternator and (if installed) the power steering system and the air conditioner pump. In a landscape mount configuration, the exhaust side faces the vehicle firewall; in a portrait mount configuration, the exhaust side is on the right side when you face forward in a left-hand or right-hand drive vehicle.

Launched at the 2005 Frankfurt Motor Show and first used in the Mk5 Golf GT, the new EA111-based engine, the 125 kW 1.4-litre TSI engine was a “twin supercharger”, using both a turbocharger and a supercharger. The downsizing improves fuel economy, with 14 percent more power than the 2.0 FSI, but 5 percent less fuel burn. Driven at five times the crankshaft speed, the supercharger compressor operates primarily at low engine speeds from idle to 2,400 revolutions per minute (rpm) to increase low-end torque. The belt-driven supercharger provides 1.75 bar (25.4 psi) of boost pressure at engine speeds slightly above idle. The turbochargers come into full effect at mid-rpm, with the engine map disengaging the clutch-controlled supercharger at a top speed of 3,500 rpm; once the turbocharger revs up and reaches enough speed to provide adequate boost in the higher rev range, the supercharger is bypassed.