Renault Power Unit Hardware & Software

[PlatinumZealot]

All their cars except max had MGUH and ERS problems so i think that might be less cooling due to the thinner atmosphere. Max's car was in clean air most of the race so that could be why his engine survived to the end.

[Jejking]

All their cars except max had MGUH and ERS problems so i think that might be less cooling due to the thinner atmosphere. Max's car was in clean air most of the race so that could be why his engine survived to the end.

In that case Brazil is going to be a slaughterhouse, less so if it rains.

[wuzak]

All their cars except max had MGUH and ERS problems so i think that might be less cooling due to the thinner atmosphere. Max's car was in clean air most of the race so that could be why his engine survived to the end.

In that case Brazil is going to be a slaughterhouse, less so if it rains.

Why?

Interlagos is >1,000m below the altitude of the Mexico track.

[toraabe]

But at least Renault has eventually got the power in race trim to win.
They are on pair with Ferrari, and what is left is some magic modes in q3 to make it to the top.

[mclaren111]

I really hope Renault can solve their reliability for 2018 !!!

Mclaren can simply not afford any DNF's from PU in 2018.

[stevesingo]

But at least Renault has eventually got the power in race trim to win.
They are on pair with Ferrari, and what is left is some magic modes in q3 to make it to the top.

I think aero efficiency at high DF levels plays a large part of the performance in Mexico. Perhaps the RB gains less drag with all the high DF bells and whistles bolted on.

[JonoNic]

Would a car with high drag not work better at high altitude than one designed for lower drag? Less drag to overcome but not such a big deficit for downforce...

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[PlatinumZealot]

It is not really fair to take drag in a context by itself. It is about the downforce to drag ratio and most imoortantly how the different aerodynamic elements of the car work on different tracks. I do not believe that all of a sudden the redbull was the fastest car overall. It was fast in Mexico because it is a track that uses a high downforce setup and also that on Max's car they got the tyres to work in the best range.

[toraabe]

http://www.formel1.de/news/grand-prix-b ... ult-fehler

too high power setting...

[NL_Fer]

All their cars except max had MGUH and ERS problems so i think that might be less cooling due to the thinner atmosphere. Max's car was in clean air most of the race so that could be why his engine survived to the end.

Max was driving in endurance style most part of the race. Hit the throttle late, shift early. Probably a lower motor setting and clean air indeed.

But race power is really on par for Renault now. Now they only have to fix the reliability and add a little Q3 power and Redbull/McLaren will be fine next year. Don’t underestimate the Renault chassis btw.

[gruntguru]

It is not really fair to take drag in a context by itself. It is about the downforce to drag ratio and most imoortantly how the different aerodynamic elements of the car work on different tracks. I do not believe that all of a sudden the redbull was the fastest car overall. It was fast in Mexico because it is a track that uses a high downforce setup and also that on Max's car they got the tyres to work in the best range.

Agree. Low-drag is well down the order of importance for F1 success. The lower drag at altitude will be of less benefit to the teams that have a low-drag design to begin with.

On the other hand the reduced downforce at altitude will benefit the cars that can achieve the highest downforce setup ie Red Bull.

[baybars]

Renault’s woes were track-specific

http://www.f1technical.net/news/21434

Renault let its turbochargers run at 108.000/min at the beginning of the weekend. As the engineers found out after the early issues experienced during the practice sessions that this running value it too high, the rev speed was decreased to 102.000/min for the race. This decrease meant a loss of 0.15 of a second in pure lap time.

Interestingly, Ferrari could run its turbochargers at the maximum of 125.000/min while Mercedes was only a tiny bit below that limit.

[etusch]

Renault’s woes were track-specific

http://www.f1technical.net/news/21434

Renault let its turbochargers run at 108.000/min at the beginning of the weekend. As the engineers found out after the early issues experienced during the practice sessions that this running value it too high, the rev speed was decreased to 102.000/min for the race. This decrease meant a loss of 0.15 of a second in pure lap time.

Interestingly, Ferrari could run its turbochargers at the maximum of 125.000/min while Mercedes was only a tiny bit below that limit.

Renault run it 102k still breakes Ferrari and Merc run 125k still runs. İncredible.

[Jejking]

Renault’s woes were track-specific

http://www.f1technical.net/news/21434

Renault let its turbochargers run at 108.000/min at the beginning of the weekend. As the engineers found out after the early issues experienced during the practice sessions that this running value it too high, the rev speed was decreased to 102.000/min for the race. This decrease meant a loss of 0.15 of a second in pure lap time.

Interestingly, Ferrari could run its turbochargers at the maximum of 125.000/min while Mercedes was only a tiny bit below that limit.

Why would Mexico cause problems? The circuit seems to be reasonably smooth so it probably has nothing to do with the bumpiness. Ambient temperature might have been problematic, or the altitude?

[djos]

Renault’s woes were track-specific

http://www.f1technical.net/news/21434

Renault let its turbochargers run at 108.000/min at the beginning of the weekend. As the engineers found out after the early issues experienced during the practice sessions that this running value it too high, the rev speed was decreased to 102.000/min for the race. This decrease meant a loss of 0.15 of a second in pure lap time.

Interestingly, Ferrari could run its turbochargers at the maximum of 125.000/min while Mercedes was only a tiny bit below that limit.

Why would Mexico cause problems? The circuit seems to be reasonably smooth so it probably has nothing to do with the bumpiness. Ambient temperature might have been problematic, or the altitude?

Lower oxygen content of the air plus higher ambient temps makes cooling quite a bit more difficult.