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The BMW S14 is a DOHC four-cylinder petrol engine which was used in the E30 M3, E30 320iS, and E36 318i Super Touring. It is based on the BMW M10 block and what is essentially a shortened BMW S38 cylinder head. [1] The direct successor to the S14 was the S42 based on the M42 engine. The S42 was a racing engine installed in the E36 320i for the ...
Variable valve lift (VVL) is an automotive piston engine technology which varies the height a valve opens in order to improve performance, fuel economy or emissions. There are two main types of VVL: discrete, which employs fixed valve lift amounts, and continuous, which is able to vary the amount of lift.
Camless valve trains have long been investigated by several companies, including Renault, BMW, Fiat, Valeo, General Motors, Ricardo, Lotus Engineering who developed electro-hydraulic valve actuation in the late 1980s as a spinoff of their active suspension program (both utilised similar electro-hydraulic actuation and control), Ford, Jiangsu Gongda Power Technologies, and Koenigsegg's sister ...
In 2002, BMW M revealed a special V8 prototype engine (full model code S62B40) for the M3 CSL which was previously fitted to the E39 M5 and the E52 Z8. The S62 was BMW's first V8 engine to have double-VANOS (variable valve timing on the intake and exhaust camshafts). However, this prototype S62 engine produces 316 kW (430 PS; 424 hp) at 6,600 ...
Later systems collect oil in a sump, from where it can be collected and pumped around the engine again, usually after rudimentary filtering. This system has long been the norm for larger internal combustion engines. A pumped oil system can use higher oil pressures and so makes the use of hydrostatic bearings easier. These gave a greater load ...
The Biden administration said Tuesday it is releasing 1 million barrels of gasoline from a Northeast reserve established after Superstorm Sandy in a bid to lower prices at the pump this summer.
However, under current rules, oil can only be pumped from the reserve at a maximum rate of “4.4 million barrels per day for up to 90 days,” according to the Department of Energy. Student loan ...
The Prince family shares its basic block dimensions with the previous PSA TU engine family. Engineering design was directed by BMW using their Valvetronic variable valve lift system on the intake side, flow-controlled oil pump, timing chain, single belt drive of all ancillary units, composite camshafts and cylinder head produced by lost-foam casting.