The M88/3 was also fitted to the South African 745i, due to packaging problems with the turbocharged M102 engine which was used in other markets. For the S38B35 with catalytic exhaust purification , the compression was lowered to 9.8: 1, the engine thus requires unleaded fuel with an octane rating of 95 RON. BMW M5 (E28) , BMW M635 CSi (E24) , BMW M745i (E23) (South African variant of the 745i (E23)).
Origines et évolution La famille de moteurs M88 Il est né dans le milieu ' soixante-dix BMW quand il a été décidé de créer une voiture de sport à utiliser en compétition et en mesure de contrer la domination Porsche dans le champ GT. Géographie physique, histoire, économie, Repères. Different years of M90 engines used both Bosch Motronic and Bosch L-Jetronic engine management systems. It was built in a 4-door sedan body style with 6-cylinder engines, to replace the BMW E3 sedans.From 1983 to 1986, a turbocharged 6-cylinder engine was available.  Kugelfischer fuel injection was used with individual throttle valves and the distinctive six individual throttle bodies. S38 has less common with M30B35. Deviations from the M88: Displacement increased to the limit of 3.5 liters, butterfly valves replaced by flat valves, valves and channel cross-sections enlarged, Performance: depending on the charge pressure of up to 625 kW (850 hp) at 9000 min, Deviations from the M88 / 1: reduced capacity, exhaust gas turbocharging, charge pressure 1.2 to 1.4 bar. It was built in a 4-door sedan body style with 6-cylinder engines, to replace the BMW E3 sedans.From 1983 to 1986, a turbocharged 6-cylinder engine was available. Terrain, Production, Distribution, Dates de sortie, Les Clayes-sous-Bois. BMW M745i E23 , national version South Africa : as in South Africa because of the links transport of the exhaust-turbocharged engine of the 745i could not be installed (the steering gear of the right arm claimed the space of the turbocharger), was for this country in the M88 / 3 in the top model of the 7 Series , combined with an automatic transmission on request, installed. The M88 was produced alongside the BMW M30 engine, as the higher performance engine. For Group 5 racing, the M88 engine was turbocharged and became known as the M88/2. The construction is an aluminium cylinder head and a cast iron block. Different years of M90 engines used both Bosch Motronic and Bosch L-Jetronic engine management systems. 280 hp at 6,500 rpm. Thus, the crankshaft with a long stroke corresponds to the 1982 built 3.5 l- M 30 , the engine block with oil supply and water pump and the crankshaft , the flywheel and the belt drive together with the ancillaries were taken from built after 1982 3.4-liter six-cylinder engine. The standard M1 featured the cast iron block BMW M88 straight-6 with 3,453 cubic centimetres displacement. The BMW M88 is a straight-6 DOHC petrol engine which was produced from 1978-1989. The M90 is a SOHC engine which is based on the M88/1. In 1986, the E23 was replaced by the E32 7 Series, however, the E23 models (called L7) remained on sale in the United … "The Story of 40 Years BMW M ‒ The BMW M1", "Top 5 Great BMW Engines - mydriftfun.com", http://www.bmwblog.com/2012/05/24/chris-harris-drives-the-e28-bmw-m5/, http://www.projectm1.com/index_files/Technology.htm, http://www.bimmerforums.com/engine_faq.php, "1984 BMW 745i E23 5-Speed manual M88 engined SA model road test", "BMW M88 and S38 M-Tech 24 Valve Six Cylinder Engines", http://www.bmwmregistry.com/model_faq.php?id=5, http://www.bmwmregistry.com/model_faq.php?id=4, https://en.wikipedia.org/w/index.php?title=BMW_M88&oldid=936975646, Creative Commons Attribution-ShareAlike License, This page was last edited on 22 January 2020, at 04:47. It utilizes the same block from the M88 and maintains the same bore and stroke, but borrows its head from the BMW M30 engine family. The resulting M88/1 engine had new camshafts, bigger valves, reshaped ports, forged pistons, use of throttle slides (instead of butterfly valves), and improved exhaust.
Otherwise, the cylinder head of the M88 / 3 does not differ in terms of constructive features from its predecessor. The BMW M88 is a straight-6 DOHC petrol engine which was produced from 1978-1989. This race engine produced up to 670 kW (900 hp)..
It has a compression ratio of 10.5:1. In the M88/3 cylinder block used lightweight forged crankshaft with a stroke of 86 mm and 12 counterweights. The Kugelfisher fuel injection was replaced with Bosch Motronic and the engine produced 286 hp (213 kW). The S38B36 engine designed especially for BMW E34 M5 which released in 1988. Rapp III, Contenu communautaire disponible sous les termes de la licence, Rowena (film de 1927). The M90 engine is a lower performance SOHC engine that was based on the M88/1. Typically identified by a white L painted on the block behind the oil filter housing and coolant water passages on the side of the block.
In addition, shortening the camshaft opening times increased the internal exhaust gas recirculation , which reduces the raw HC emissions (emissions before catalytic converter). Typically identified by a white L painted on the block behind the oil filter housing and coolant water passages on the side of the block.
900HP BMW 325i E36 Turbo 0-280 Acceleration Sound - YouTube This racing version, called the M88/1, met the Group 4 regulations. This engine based on naturally aspirated M88/3 (S38B35). It is based on the DOHC version of the BMW M49 engine, which was used in the BMW 3.0CSi racing cars.. This means not only considerable cost savings due to the elimination of the equally expensive and highly precise precision mechanics of the blower injection, but also further possibilities for the efficient coordination of ignition timing and injection quantity to the respective operating state of the engine. It was downsleeved and had a shorter stroke to displace 3,191 cc (3.2 L), which with the 1.4 turbo factor placed it in the 4.5-liter class.
 The bore is 93.4 mm (3.68 in) and the stroke is 84.0 mm (3.31 in), resulting in a displacement of 3,453 cc (210.7 cu in). The M88 was the original iteration of the engine and was fitted to the BMW M1. The BMW M88 is a straight-6 DOHC piston engine produced from 1978-1989. For the Procar M1's, the M88 was tuned to 470 to 490 bhp. In 1989, an updated version of the S38 became the worldwide replacement for the M88. The M88/1 engine was modified for use in the M635CSi and E28 M5, this engine was known as the M88/3. The fuel pressure in front of the injection valves is 3 bar; actually, the pressure difference to the intake manifold vacuum for all engine operating conditions is 3 bar, thus the injected fuel quantity is directly proportional to the driving time of the injectors. The engine is now equipped with an idling control valve controlled by the Motronic , with a lambda probe located in a connecting piece of the otherwise double-flow exhaust system keeping the fuel-air mixture exactly at lambda = 1 . It is based on the M49 motorsport engine, which was used in the BMW 3.0CSi.
For the detection of the load condition , a damper air flow meter is used; the puffer fish injection took its information on the load condition from the throttle position, but since there was no information about the actually sucked air flow, this is in practice rather as a targetLoad state (possible deviations of the intake air mass, eg due to clogged air filter, can not be detected in this way).
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