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#1
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In Cylinder Video N54 3.0 Twin Turbo
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2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue |
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#2
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very cool vid, wished it lasted longer!
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2008 E82 135is JB2 Alpine White / Lemon 2008 E90 335i JB2 Monaco Blue/Grey 2007 E85 M Roadster Black/Black 2006 E60 550 w/ M Kit Silver/Black 2003 E46 M3 SMG w/ VMR V715 19's Blue/Black |
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#3
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Interesting that they have a pilot injection phase just like diesels. Thanks for the vid.
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#4
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The engine management system, in conjunction with the piezo injectors, allows up to 3 injection events. It is load and rpm dependent. Because there are two events in the video, the engine being filmed is either at low torque level and rpm, or medium rpm. At high torque/low rpm conditions there are three events. This helps to allow the use of a 10.2:1 compression ratio, which is fairly high for a turbocharged engine running pump gas.
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2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue |
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