Early in the season there were many troubles in the bearing of the shaft connecting the turbo and the MGU - H, but since the trouble did not come out due to repeated improvements by the middle of the season. Besides, a new item just put on Saturday of Japan GP broke in the second game. Even looking at other individuals, it is not such a distance that life is very long.
Since it is difficult to investigate the cause at the work site, we decided to send back the power unit that was unloaded from the car body to HRD Sakura for analysis.
"We have been keeping detailed measures for a long time and we have not had trouble recently, similar to the trouble of MGU-H that happened so far that damage accumulates little by little in the bearing system and it deteriorates and sticks However, I do not yet know whether the same trouble or not is not yet broken by mileage, so it may be due to poor quality associated with a lot of parts and if not analyzed properly then what I do not know if I should do it. "(Nakamura Engineer)
Every machine product degrades by using it repeatedly, and its performance declines. Vandoorne MGU-H, which had reached a mileage when used from the summer vacation, had accumulated damage at a rate faster than expected.
"From the data point of view, I knew that it was getting worse gradually from free practice on Saturday, but from that trend I thought that I could run the race this weekend, so let's go straight However, when I saw the data when I ran the engine on Sunday morning, I noticed that the trend of deterioration had progressed faster than I thought, and the possibility that I can not finish the race as it is I also thought that it was probably preserved, but it was a bit of a grim line "(Nakamura Engineer).
Honda has introduced an improved ICE (internal combustion engine) called "Spec. 3.8" at this US GP
"I changed the combustion chamber so that the combustion efficiency gets better, since I got a reasonable gain (share) on the data, I can confirm that 3.8 is working properly" (Yuusuke Hasegawa F1 General Manager )
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