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Old 08-12-2018, 03:21 PM   #35
mkodama
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Quote:
Originally Posted by nikitopo View Post
I was reading lately about the difficulty to minimize the height of the engine and the different components. The target was to place the engine as lower and back to the driver as possible. Normally, on a mass produced engine the specification accuracy of a component can be in the range of 0.1mm. So, a component of 10mm is OK to be 10.1mm. This was changed on the particular engine to something like 10.00001mm. Additionally, the minimum spacing between parts was changed to just 2mm. So, it wasn't that easy to achieve the following:




Source: https://car.watch.impress.co.jp/docs/news/1026907.html
The accuracy comment is false, but I’ll attribute it to a poor translation from Japanese. 0.001mm is 1 micron, and 1 micron is what vapor discharge coatings are measured in. 0.1 micron are the units that roughness of a cylinder bore might be measured in.

The number with all the zeroes is probably a joke about the designers’ passion and attention to detail.
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