Valvetronic tagged posts

Brief Analysis: the All-New BMW B58 6-Cylinder Engine

Note: We have a more comprehensive analysis of the BMW B58 engine, click and view it:

Detailed Analysis: The BMW B58 Inline 6-Cylinder Engine

The upcoming 2016 BMW 340i will be equipped with a 3.0L turbocharged I6 engine (code name: B58). This is not the same N55 engine which is widely used in many BMW cars at this moment (like 235i/335i/435i/535i/740i etc.), instead the B58 engine is an completely-new design and has many fundamental differences than the N55.

2016_BMW_3Series_Facelift_12

Below are some analysis based on the engine structure images released by BMW.

1. The biggest change in the B58 engine is its block is a closed deck design (while the N54/N55 is an open deck)...

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Let’s Talk About Engine Valve Technology

You probably do not know what does “engine valve technology” mean if you are not a car enthusiast. However, you may have already heard of terms like “VVT-i” (on Toyota cars), “VTEC” (for Honda), “VANOS” and “Valvetronic” (for BMW), “VarioCam” (Porsche). These are how each auto maker name its engine valve technology. In this article I would try to discuss some interesting stuffs about this topic.

Honda_NSX_Engine_VTEC

The internal combustion engine in a modern automobile is a 4-stroke engine, and it has intake and exhaust valves. It is easy to imagine that the optimal timing of the open/close of the valves, should not be fixed under all workloads...

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