Renault Power Unit Hardware & Software

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
AR3-GP
AR3-GP
59
Joined: Tue Jul 06, 2021 12:22 am

Re: Renault Power Unit Hardware & Software

Post

Does the intercooler share the water with the engine?

holeindalip
holeindalip
17
Joined: Tue Jun 11, 2013 12:58 am
Location: Decatur,IL USA

Re: Renault Power Unit Hardware & Software

Post

AR3-GP wrote:
Fri Mar 18, 2022 1:42 am
Does the intercooler share the water with the engine?
Wouldn’t you get far better cold side temps using a separate system than using 200 degree water?

AR3-GP
AR3-GP
59
Joined: Tue Jul 06, 2021 12:22 am

Re: Renault Power Unit Hardware & Software

Post

holeindalip wrote:
Fri Mar 18, 2022 3:07 am
AR3-GP wrote:
Fri Mar 18, 2022 1:42 am
Does the intercooler share the water with the engine?
Wouldn’t you get far better cold side temps using a separate system than using 200 degree water?
Yes that sounds much smarter in hindsight :D

AR3-GP
AR3-GP
59
Joined: Tue Jul 06, 2021 12:22 am

Re: Renault Power Unit Hardware & Software

Post

There is not much talk in the comparisons about the Renault power unit. People don't seem interested. How is it relative to Ferrari/Merc/Honda?

Walkman
Walkman
1
Joined: Sat May 05, 2018 2:23 pm

Re: Renault Power Unit Hardware & Software

Post

Looks pretty good tbh. If reliability holds well, I think they have a pretty competitive PU package.

But people like shitting on Renault too much so they will persuade themselves they still are the worst, and you won't see too much praise here.

User avatar
Juzh
149
Joined: Sat Oct 06, 2012 7:45 am

Re: Renault Power Unit Hardware & Software

Post

AR3-GP wrote:
Sun Mar 20, 2022 10:18 pm
There is not much talk in the comparisons about the Renault power unit. People don't seem interested. How is it relative to Ferrari/Merc/Honda?
Walkman wrote:
Sun Mar 20, 2022 10:39 pm
Looks pretty good tbh. If reliability holds well, I think they have a pretty competitive PU package.

But people like shitting on Renault too much so they will persuade themselves they still are the worst, and you won't see too much praise here.
I'm not saying renault PU is particularly bad or anything, however telemetry suggests they are clearly behind ferrari and honda and on par with mercedes.

Alonso (blue) vs Leclerc (red) fastest qualifying lap:
Image
Apart from main straight ferrari is faster on any full throttle section, easily evident by time delta increasing on straights. Based on weekend observations I believe ferrari has the most downforce but also quite some drag which they are neutralising with their super fast PU. This correlates well with them being just slightly slower on top end vs alpine, who I would say can't compare in downforce department, but faster on acceleration almost everywhere else.

Alonso (blue) vs Verstappen (dark blue) fastest qualifying lap:
Image
Red bull ran with trimmed rear wing edges to help their notorious understeer (aka reducing rear downforce for better balance) and as such were the fastest car on top end by some margin this race. They're faster in most full throttle sections vs alpine, but in my opinion behind ferrari on total power by a low, but noticeable amount. I think their low drag approach to this race is making them look maybe a bit better than they'll be on some other tracks, but that remains to be seen (the red bull that is)

Alonso (blue) vs Hamilton (green/cyan) fastest qualifying lap:
Image
Renault and mercedes seem almost completely matched apart from main straight with delta time being almost stagnant on all straights (no one's gaining on anyone). Worrying for renault is that mercedes ran with a very draggy setup (this was mentioned by wolf) and if they sort out their bouncing problems then they might be able to run with reduced wing angles, but that's also another thing that remains to be seen.

All in all my opinion so far is this:
1. ferrari
2. honda
3. renaut = mercedes

You can generate these graphics any many more on website below
https://www.f1-tempo.com/

ryaan2904
ryaan2904
35
Joined: Thu Oct 01, 2020 8:45 am

Re: Renault Power Unit Hardware & Software

Post

Juzh wrote:
Sun Mar 20, 2022 11:56 pm
AR3-GP wrote:
Sun Mar 20, 2022 10:18 pm
There is not much talk in the comparisons about the Renault power unit. People don't seem interested. How is it relative to Ferrari/Merc/Honda?
Walkman wrote:
Sun Mar 20, 2022 10:39 pm
Looks pretty good tbh. If reliability holds well, I think they have a pretty competitive PU package.

But people like shitting on Renault too much so they will persuade themselves they still are the worst, and you won't see too much praise here.
I'm not saying renault PU is particularly bad or anything, however telemetry suggests they are clearly behind ferrari and honda and on par with mercedes.

Alonso (blue) vs Leclerc (red) fastest qualifying lap:
https://i.imgur.com/vapCx0d.jpg
Apart from main straight ferrari is faster on any full throttle section, easily evident by time delta increasing on straights. Based on weekend observations I believe ferrari has the most downforce but also quite some drag which they are neutralising with their super fast PU. This correlates well with them being just slightly slower on top end vs alpine, who I would say can't compare in downforce department, but faster on acceleration almost everywhere else.

Alonso (blue) vs Verstappen (dark blue) fastest qualifying lap:
https://i.imgur.com/qlv7TuV.jpg
Red bull ran with trimmed rear wing edges to help their notorious understeer (aka reducing rear downforce for better balance) and as such were the fastest car on top end by some margin this race. They're faster in most full throttle sections vs alpine, but in my opinion behind ferrari on total power by a low, but noticeable amount. I think their low drag approach to this race is making them look maybe a bit better than they'll be on some other tracks, but that remains to be seen (the red bull that is)

Alonso (blue) vs Hamilton (green/cyan) fastest qualifying lap:
https://i.imgur.com/LytLb1h.jpg
Renault and mercedes seem almost completely matched apart from main straight with delta time being almost stagnant on all straights (no one's gaining on anyone). Worrying for renault is that mercedes ran with a very draggy setup (this was mentioned by wolf) and if they sort out their bouncing problems then they might be able to run with reduced wing angles, but that's also another thing that remains to be seen.

All in all my opinion so far is this:
1. ferrari
2. honda
3. renaut = mercedes

You can generate these graphics any many more on website below
https://www.f1-tempo.com/
Great effort
CFD Eyes of Sauron

toraabe
toraabe
12
Joined: Thu Oct 09, 2014 9:42 am

Re: Renault Power Unit Hardware & Software

Post

Interesting

It was like that last year also until Mercedes cranked up the power....

I don't think anyone ran their engine at maximum mappings either..

Anyway This year Renault engine could be the jewel at the rear in the Alpine.

User avatar
Bisonas
3
Joined: Sun Feb 01, 2015 10:56 am

Re: Renault Power Unit Hardware & Software

Post

Any info or insight on why the Alpines where not using 8th gear in the race?
Alonso i think almost never used 8th gear, and i saw ocon on 8th gear only when he was using DRS in the race.
Is it engine maps? gear ratio ? being cautious for the first race to get more data? It was the first real test of the PU in race trim. Any thoughts ?

IMO, I don't think that the PU is truly optimized yet. And i don't think it will be until the summer.
I think MGU-K, CE and ES can still be developed and change the specification only one time until 1st September. And for 2022 only i think they can change the gear ratios also one time. Personally i will judge the Renault PU after the summer break. After summer break there are no excuses.

baybars
baybars
1
Joined: Wed May 03, 2017 7:44 am

Re: Renault Power Unit Hardware & Software

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Traditionally Renault uses very conservative setting on the PU on the beginning of the season. But also they use completely new PU . I think that they need some time for best mapping. I remember that Rossi had said similar things.

User avatar
diffuser
158
Joined: Fri Sep 07, 2012 12:55 pm
Location: Montreal

Re: Renault Power Unit Hardware & Software

Post

Juzh wrote:
Sun Mar 20, 2022 11:56 pm
AR3-GP wrote:
Sun Mar 20, 2022 10:18 pm
There is not much talk in the comparisons about the Renault power unit. People don't seem interested. How is it relative to Ferrari/Merc/Honda?
Walkman wrote:
Sun Mar 20, 2022 10:39 pm
Looks pretty good tbh. If reliability holds well, I think they have a pretty competitive PU package.

But people like shitting on Renault too much so they will persuade themselves they still are the worst, and you won't see too much praise here.
I'm not saying renault PU is particularly bad or anything, however telemetry suggests they are clearly behind ferrari and honda and on par with mercedes.

Alonso (blue) vs Leclerc (red) fastest qualifying lap:
https://i.imgur.com/vapCx0d.jpg
Apart from main straight ferrari is faster on any full throttle section, easily evident by time delta increasing on straights. Based on weekend observations I believe ferrari has the most downforce but also quite some drag which they are neutralising with their super fast PU. This correlates well with them being just slightly slower on top end vs alpine, who I would say can't compare in downforce department, but faster on acceleration almost everywhere else.

Alonso (blue) vs Verstappen (dark blue) fastest qualifying lap:
https://i.imgur.com/qlv7TuV.jpg
Red bull ran with trimmed rear wing edges to help their notorious understeer (aka reducing rear downforce for better balance) and as such were the fastest car on top end by some margin this race. They're faster in most full throttle sections vs alpine, but in my opinion behind ferrari on total power by a low, but noticeable amount. I think their low drag approach to this race is making them look maybe a bit better than they'll be on some other tracks, but that remains to be seen (the red bull that is)

Alonso (blue) vs Hamilton (green/cyan) fastest qualifying lap:
https://i.imgur.com/LytLb1h.jpg
Renault and mercedes seem almost completely matched apart from main straight with delta time being almost stagnant on all straights (no one's gaining on anyone). Worrying for renault is that mercedes ran with a very draggy setup (this was mentioned by wolf) and if they sort out their bouncing problems then they might be able to run with reduced wing angles, but that's also another thing that remains to be seen.

All in all my opinion so far is this:
1. ferrari
2. honda
3. renaut = mercedes

You can generate these graphics any many more on website below
https://www.f1-tempo.com/
How do you know the difference between more Power and more DF ? Looks to me like they have more DF. They're later on the brakes, carry more speed in the corners and earilier on the throttle too ... All signs of more vs lacking DF.

Image

User avatar
Juzh
149
Joined: Sat Oct 06, 2012 7:45 am

Re: Renault Power Unit Hardware & Software

Post

diffuser wrote:
Tue Mar 22, 2022 5:08 pm
Juzh wrote:
Sun Mar 20, 2022 11:56 pm
AR3-GP wrote:
Sun Mar 20, 2022 10:18 pm
There is not much talk in the comparisons about the Renault power unit. People don't seem interested. How is it relative to Ferrari/Merc/Honda?
Walkman wrote:
Sun Mar 20, 2022 10:39 pm
Looks pretty good tbh. If reliability holds well, I think they have a pretty competitive PU package.

But people like shitting on Renault too much so they will persuade themselves they still are the worst, and you won't see too much praise here.
I'm not saying renault PU is particularly bad or anything, however telemetry suggests they are clearly behind ferrari and honda and on par with mercedes.

Alonso (blue) vs Leclerc (red) fastest qualifying lap:
https://i.imgur.com/vapCx0d.jpg
Apart from main straight ferrari is faster on any full throttle section, easily evident by time delta increasing on straights. Based on weekend observations I believe ferrari has the most downforce but also quite some drag which they are neutralising with their super fast PU. This correlates well with them being just slightly slower on top end vs alpine, who I would say can't compare in downforce department, but faster on acceleration almost everywhere else.

Alonso (blue) vs Verstappen (dark blue) fastest qualifying lap:
https://i.imgur.com/qlv7TuV.jpg
Red bull ran with trimmed rear wing edges to help their notorious understeer (aka reducing rear downforce for better balance) and as such were the fastest car on top end by some margin this race. They're faster in most full throttle sections vs alpine, but in my opinion behind ferrari on total power by a low, but noticeable amount. I think their low drag approach to this race is making them look maybe a bit better than they'll be on some other tracks, but that remains to be seen (the red bull that is)

Alonso (blue) vs Hamilton (green/cyan) fastest qualifying lap:
https://i.imgur.com/LytLb1h.jpg
Renault and mercedes seem almost completely matched apart from main straight with delta time being almost stagnant on all straights (no one's gaining on anyone). Worrying for renault is that mercedes ran with a very draggy setup (this was mentioned by wolf) and if they sort out their bouncing problems then they might be able to run with reduced wing angles, but that's also another thing that remains to be seen.

All in all my opinion so far is this:
1. ferrari
2. honda
3. renaut = mercedes

You can generate these graphics any many more on website below
https://www.f1-tempo.com/
How do you know the difference between more Power and more DF ? Looks to me like they have more DF. They're later on the brakes, carry more speed in the corners and earilier on the throttle too ... All signs of more vs lacking DF.

https://i.imgur.com/PsIhSye.jpeg
who has?

User avatar
diffuser
158
Joined: Fri Sep 07, 2012 12:55 pm
Location: Montreal

Re: Renault Power Unit Hardware & Software

Post

Juzh wrote:
Tue Mar 22, 2022 11:01 pm
diffuser wrote:
Tue Mar 22, 2022 5:08 pm
Juzh wrote:
Sun Mar 20, 2022 11:56 pm


I'm not saying renault PU is particularly bad or anything, however telemetry suggests they are clearly behind ferrari and honda and on par with mercedes.

Alonso (blue) vs Leclerc (red) fastest qualifying lap:
https://i.imgur.com/vapCx0d.jpg
Apart from main straight ferrari is faster on any full throttle section, easily evident by time delta increasing on straights. Based on weekend observations I believe ferrari has the most downforce but also quite some drag which they are neutralising with their super fast PU. This correlates well with them being just slightly slower on top end vs alpine, who I would say can't compare in downforce department, but faster on acceleration almost everywhere else.

Alonso (blue) vs Verstappen (dark blue) fastest qualifying lap:
https://i.imgur.com/qlv7TuV.jpg
Red bull ran with trimmed rear wing edges to help their notorious understeer (aka reducing rear downforce for better balance) and as such were the fastest car on top end by some margin this race. They're faster in most full throttle sections vs alpine, but in my opinion behind ferrari on total power by a low, but noticeable amount. I think their low drag approach to this race is making them look maybe a bit better than they'll be on some other tracks, but that remains to be seen (the red bull that is)

Alonso (blue) vs Hamilton (green/cyan) fastest qualifying lap:
https://i.imgur.com/LytLb1h.jpg
Renault and mercedes seem almost completely matched apart from main straight with delta time being almost stagnant on all straights (no one's gaining on anyone). Worrying for renault is that mercedes ran with a very draggy setup (this was mentioned by wolf) and if they sort out their bouncing problems then they might be able to run with reduced wing angles, but that's also another thing that remains to be seen.

All in all my opinion so far is this:
1. ferrari
2. honda
3. renaut = mercedes

You can generate these graphics any many more on website below
https://www.f1-tempo.com/
How do you know the difference between more Power and more DF ? Looks to me like they have more DF. They're later on the brakes, carry more speed in the corners and earilier on the throttle too ... All signs of more vs lacking DF.

https://i.imgur.com/PsIhSye.jpeg
who has?
Ferrari

User avatar
Juzh
149
Joined: Sat Oct 06, 2012 7:45 am

Re: Renault Power Unit Hardware & Software

Post

diffuser wrote:
Tue Mar 22, 2022 11:06 pm
Juzh wrote:
Tue Mar 22, 2022 11:01 pm
diffuser wrote:
Tue Mar 22, 2022 5:08 pm


How do you know the difference between more Power and more DF ? Looks to me like they have more DF. They're later on the brakes, carry more speed in the corners and earilier on the throttle too ... All signs of more vs lacking DF.

https://i.imgur.com/PsIhSye.jpeg
who has?
Ferrari
That's what I said :?:
"Based on weekend observations I believe ferrari has the most downforce but also quite some drag which they are neutralising with their super fast PU."

User avatar
diffuser
158
Joined: Fri Sep 07, 2012 12:55 pm
Location: Montreal

Re: Renault Power Unit Hardware & Software

Post

Juzh wrote:
Tue Mar 22, 2022 11:16 pm
diffuser wrote:
Tue Mar 22, 2022 11:06 pm
Juzh wrote:
Tue Mar 22, 2022 11:01 pm

who has?
Ferrari
That's what I said :?:
"Based on weekend observations I believe ferrari has the most downforce but also quite some drag which they are neutralising with their super fast PU."
Sorry misread that. Thought you because the PU has more power.