Mercedes Power Unit Hardware & Software

[ripper]

I don't know if it is offtopic:

https://it.motorsport.com/f1/news/la-me ... o-1030966/

Short translation:

- from today (Baku's qualy) teams that use Mercedes PU will be able to use more aggressive maps.
- Szafnauer (from Force India) said that this map should give 0.1 or 0.05 sec per lap
- there's a map called "race-plus" that is the most powerful one usable during race and they will be able to use it for 20-30 km more

[Jejking]

I don't know if it is offtopic:

https://it.motorsport.com/f1/news/la-me ... o-1030966/

Short translation:

- from today (Baku's qualy) teams that use Mercedes PU will be able to use more aggressive maps.
- Szafnauer (from Force India) said that this map should give 0.1 or 0.05 sec per lap
- there's a map called "race-plus" that is the most powerful one usable during race and they will be able to use it for 20-30 km more

Definitely not offtopic. I'm wondering what is changing within the maps that it 'only' is worth 0.05-0.1 a lap. Top end grunt I suppose? Maybe we could compare top speed charts from friday to saturday, or the qualifying sessions, to see if the max has increased.

[roon]

Maybe it is their more conventional mgu-compressor-turbine setup, which can unlock more power in the end and the split turbo, while good in the beginning, has a limit which has been reached now.

Good point. All things being equal & perfectly developed, the split turbo will need a longer shaft than the conventional design. In practice, the potential weight, inertia, and friction disadvantages of the split turbo will still be balanced against the effects of compressor temperature, charge piping, component mass distribution, turbine location and resultant manifold designs, etc.

[PlatinumZealot]

I don't know if it is offtopic:

https://it.motorsport.com/f1/news/la-me ... o-1030966/

Short translation:

- from today (Baku's qualy) teams that use Mercedes PU will be able to use more aggressive maps.
- Szafnauer (from Force India) said that this map should give 0.1 or 0.05 sec per lap
- there's a map called "race-plus" that is the most powerful one usable during race and they will be able to use it for 20-30 km more

Definitely not offtopic. I'm wondering what is changing within the maps that it 'only' is worth 0.05-0.1 a lap. Top end grunt I suppose? Maybe we could compare top speed charts from friday to saturday, or the qualifying sessions, to see if the max has increased.

The words "race plus" sort of hint that is it a mode on the ERS deployment. I am gonna guess and say it for the entire power band because you need that acceleration going onto the long straight. That should easily make up the one tenth.

[dans79]

Anyone know if Mercedes will bring an updated power unit to Canada?

[djones]

I read yes they are. No details, just that it is a new spec.

[PlatinumZealot]

Anyone know if Mercedes will bring an updated power unit to Canada?

Yes. Perfect track to test it.

[63l8qrrfy6]

All 3 teams will receive new engines. There is a further sofware update already planned for France where the factory team is planning on introducing an aero update.

I hear rumours about some special pistons.

[bill shoe]

As usual the Merc powertrain is so stone reliable and powerful, there is not really anything to say for a month at a time.

[astracrazy]

I hear rumours about some special pistons.

Go on....

[Muniix]

All 3 teams will receive new engines. There is a further sofware update already planned for France where the factory team is planning on introducing an aero update.

I hear rumours about some special pistons.

Special pistons, i'd think they've mastered AM steel pistons to the point where they're superior to conventional Al material issues. The added design flexibility, combined with TJI's lower temperature lean combustion. Ultimately reducing losses from less reciprocating mass and inertia.

[PlatinumZealot]

Steel piston still have not been confirmed by any team as far as I know. This has been discussed many times before.. but no solid evidence has emerged.

[63l8qrrfy6]

I hear rumours about some special pistons.

Go on....

A difFErent material.

[Big Tea]

I hear rumours about some special pistons.

Go on....

A difFErent material.

Once they iron out the problems they will steel a march in the others.

[godlameroso]

The nice thing about steel pistons are the features you can have without compromising structural integrity to the same degree as aluminim. But you can't escape the weight issue. Even a few grams makes a huge difference. They must either be using crazy manufacturing techniques to stay near the weight limit or they accept some weight for the toughness steel gives you.