Yesterday we brought you the news that Toyota released some information for their new generation of high efficiency naturally aspirated engines.
After research we come out with some analysis and our viewpoint:
1. Most of the technologies are borrowed from previous higher level products (not necessarily within the Toyota Group only). For example the VVT-iE valve system, previously appear on the 1UR V8 engine, which is used on Lexus LS460 and IS-F.
2. The 1.3L is a 4-cylinder engine, while the 1.0L is 3-cylinder. Pay attention to the difference in their compression ratio. Why the 1.3L has 13.5:1 and the 1.0L only gets 11.5:1...
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