available at 4,200 rpm. It produces at 5,900 rpm and at 4,200 rpm. The compression ratio was increased to 10.5:1. Applications: 1993-1995 E36 325i, 325is 1992-1996 E34 525i, 525ix M50B30TU concept In 1993, BMW Individual created an concept of BMW E34 530iX called Enduro Touring. Only one car was produced, having an up-sized variant of M50B25TU engine. Bore and stroke was increased and the total displacement of 3.0 was achieved. The power and torque both increased to and respectively. S50 The S50 is the high performance version of the M50 which was used in the E36 M3, replacing the four-cylinder BMW S14 engine used in the E30 M3. Like the M50, the S50 has an iron block and aluminum head with four valves per cylinder. In the United States, a less powerful engine called the "S50B30US" was used, which shares more in common with the regular M50 engine than the other S50 versions. S50B30 The S50B30 was used in most countries, except for the United States (in 1993, BMW Canada officially imported 45 M3's with the S50B30 engine). The S50B30 produces , has a bore of , a stroke of and a compression ratio of 10.8:1. The redline is 7,200 rpm. The S50 has an individual throttle body for each cylinder, single-VANOS (variable valve timing on the intake camshaft), Bosch Motronic M3.3 engine management and redesigned intake and exhaust systems. The limited edition "M3 GT" model from 1995 produced . It had different camshafts and a redesigned sump and oil pump. Applications: 1992-1995 E36 M3 (except for U.S.) S50B30US In the United States, the 1994-1995 model years of the E36 M3 are powered by the S50B30US, a engine which produces . This engine is more closely related to the standard M50 engine and has the same compression ratio as the M50B25TU, but uses a different camshafts, crankshaft, connecting rods, and pistons. The bore is , the stroke is and the redline is 7,000 rpm. In 1996, the S50B30US was replaced by the BMW S52 engine (in the United States and Canada only). Applications: 1994-1995 E36 M3 (U.S. only) S50B32 In 1995, the S50B32 replaced the S50B30 (except in Canada and the United States, where the BMW S52 engine was used instead). Power output increased to and the displacement increased to , due to an increased stroke of and a slight increase in bore to . The S50B32 has double-VANOS (variable