Mercedes Power Unit Hardware & Software

[Xwang]

I think it is BS.
AFAIK phonometric measures were used with NA engines where power increases pretty linearly with engine speed.
With turbo compound and hybrid engines like the actual F1 PU, I do not see how it is possible to get the power value by measuring the engine ICE RPM.
However I could be wrong

[etusch]

saw a lot smoking coming from the rear Racing Point, Williams und Mercedes car. all related to the engine?
havent seen that much smoke last year.

Was like that in testing already. Only Mercedes engines.

Can there be something like Ferrari did but better one ? Ferrari fumes were famous last season.

[casper]

I came across a table used in Detailed Hydrocarbon Analysis method for quantifying the organic homologues: paraffins, isoparaffins, olefins, naphthene, olefins, aromatics, and oxygenates. The table lists organic compound with their Octane numbers, with some higher than MTBE's (the first additive that replaced tetra ethyl lead, but subsequently banned too). Can I post it here?

[Sieper]

I’ve seen it the most at Perez.Quite often. Out of turn 2 (Max power uphill) Bottas also had it when accelerating out of turn 2 in Steirmark GP. I read somewhere it had to do with using the fuel as cooling and then sometimes being forced to dump somewhat.

I find it remarkable to see at turn 2, the very highest power need moment. Proofs of smoke we don’t see at any of the other PUs, not even Smokey Ferrari anymore.

[MtthsMlw]

The Ferrari engine isn't smoking anymore since 2018 that was when we saw a lot of smoke on startup.
Some people explained that with seals not being tight in ambient temp.
The Merc engine (at least in the RP) is also spraying some oil/liquid as seen on the onboards of cars following.
Interestingly only on the curb out of turn 3 for at least the first 7 laps of the Austrian GP.

[ENGINE TUNER]

The Ferrari engine isn't smoking anymore since 2018 that was when we saw a lot of smoke on startup.
Some people explained that with seals not being tight in ambient temp.
The Merc engine (at least in the RP) is also spraying some oil/liquid as seen on the onboards of cars following.
Interestingly only on the curb out of turn 3 for at least the first 7 laps of the Austrian GP.

That was just overflow of the excess

[Hoffman900]

I think it is BS.
AFAIK phonometric measures were used with NA engines where power increases pretty linearly with engine speed.
With turbo compound and hybrid engines like the actual F1 PU, I do not see how it is possible to get the power value by measuring the engine ICE RPM.
However I could be wrong

Hence my seeking their methodology and reasoning.

[63l8qrrfy6]

It helps them work out the gearing, they still need the speed traces as well as estimates for car mass and drag levels.
Given that current engines are all within 5% or so chances are the measurement error is larger than the differences they are trying to measure.

[Hoffman900]

It helps them work out the gearing, they still need the speed traces as well as estimates for car mass and drag levels.
Given that current engines are all within 5% or so chances are the measurement error is larger than the differences they are trying to measure.

Exactly. 15%, maybe, but trying to hash out the last <10% with this methodology seems a bit of a stretch. It's a fun exercise, but seems little use other than some bench racing on some forums.

[Blackout]

It helps them work out the gearing, they still need the speed traces as well as estimates for car mass and drag levels.
Given that current engines are all within 5% or so chances are the measurement error is larger than the differences they are trying to measure.

Is that number just an example or is it based on real infos?

There is a guy in another forum who claims to have insiders infos from Viry and he says that the estimated peak power in Qualy are:
1070 - 1075 Renault
1065 -1070 Honda - Merc
1025 -1030 Ferrari

And Gasly said in french tv that the Honda produces 1050hp

[63l8qrrfy6]

It helps them work out the gearing, they still need the speed traces as well as estimates for car mass and drag levels.
Given that current engines are all within 5% or so chances are the measurement error is larger than the differences they are trying to measure.

Is that number just an example or is it based on real infos?

There is a guy in another forum who claims to have insiders infos from Viry and he says that the estimated peak power in Qualy are:
1070 - 1075 Renault
1065 -1070 Honda - Merc
1025 -1030 Ferrari

And Gasly said in french tv that the Honda produces 1050hp

Well the numbers you posted are within 5% too.
I was actually going by some numbers posted by Gary Anderson in a recent article (might have been it the comments section) which gave a slightly different ranking but were also within 5% (delta between most powerful to least powerful)

[Blackout]

Thanks.
And what is that article about?

[etusch]

It helps them work out the gearing, they still need the speed traces as well as estimates for car mass and drag levels.
Given that current engines are all within 5% or so chances are the measurement error is larger than the differences they are trying to measure.

Is that number just an example or is it based on real infos?

There is a guy in another forum who claims to have insiders infos from Viry and he says that the estimated peak power in Qualy are:
1070 - 1075 Renault
1065 -1070 Honda - Merc
1025 -1030 Ferrari

And Gasly said in french tv that the Honda produces 1050hp

Mr Abitebul please make a comment.

[63l8qrrfy6]

Thanks.
And what is that article about?

It was one of the many "why are ferrari so slow" articles on The Race.
I am fairly sure the hp figures he had were posted in the comments section somehwere, can't find them again.
It gave a maximum difference of 45hp between best and worst PUs so very much in line with what you have

[Blackout]

Thanks.
So if we cross-check Wazari's infos with Gasly's number and your Info we should have these Q peak power values:
Renault: over 9000
Mercedes: between 1051 and 1069
Honda: 1050
Ferrari: 1020 more or less