Ferrari SF23

A place to discuss the characteristics of the cars in Formula One, both current as well as historical. Laptimes, driver worshipping and team chatter do not belong here.
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vorticism
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Joined: 01 Mar 2022, 20:20

Re: Ferrari SF23

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Something is putting sparks in front of the rear wheel during roll. The plank blocks can't supply this, imo.

Image

Image


In this photo by Fabrega we can see six screws heads. This would correspond with the six legs of the ice skate as seen on the RB18 and with the regulations posted above.


jambuka wrote:
05 May 2023, 18:56
Image
Owen.C93 wrote:
08 Apr 2022, 11:28
Image
With the skate now needing to be 15mm higher off of the ground Ferrari seem to still be using it, while RB opted to go with an edge wing in '23.
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Vanja #66
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Joined: 19 Mar 2012, 16:38

Re: Ferrari SF23

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vorticism wrote:
10 May 2023, 15:06
With the skate now needing to be 15mm higher off of the ground Ferrari seem to still be using it, while RB opted to go with an edge wing in '23.
Well, that put the lot of us in place... :lol: Great stuff!

There was a pundit I can't remember right now that said we won't be seeing ice skates anymore, due to rule change. Another evidence we need to double-check everything these days... :roll:

On the other hand, this explains why Ferrari isn't doing more with floor edges, other than the fact they are still working on floor profile.
And they call it a stall. A STALL!

#DwarvesAreNaturalSprinters
#BlessYouLaddie

AR3-GP
AR3-GP
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Joined: 06 Jul 2021, 01:22

Re: Ferrari SF23

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vorticism wrote:
10 May 2023, 15:06
Something is putting sparks in front of the rear wheel during roll. The plank blocks can't supply this, imo.

https://i.postimg.cc/jjNrJ3yw/IMG-0425.jpg

https://i.postimg.cc/hjBR880C/IMG-0426.jpg


In this photo by Fabrega we can see six screws heads. This would correspond with the six legs of the ice skate as seen on the RB18 and with the regulations posted above.


Owen.C93 wrote:
08 Apr 2022, 11:28
https://i.imgur.com/wWc9BRm.png
With the skate now needing to be 15mm higher off of the ground Ferrari seem to still be using it, while RB opted to go with an edge wing in '23.
Superb detective work. It's interesting that Ferrari have not gone for the edge wing as well.

It could be simply because the Ferrari floor is more flexible?
A lion must kill its prey.

Fer.Fan
Fer.Fan
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Joined: 02 Mar 2015, 21:31

Re: Ferrari SF23

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vorticism wrote:
10 May 2023, 15:06
Something is putting sparks in front of the rear wheel during roll. The plank blocks can't supply this, imo.

https://i.postimg.cc/jjNrJ3yw/IMG-0425.jpg

https://i.postimg.cc/hjBR880C/IMG-0426.jpg


In this photo by Fabrega we can see six screws heads. This would correspond with the six legs of the ice skate as seen on the RB18 and with the regulations posted above.


Owen.C93 wrote:
08 Apr 2022, 11:28
https://i.imgur.com/wWc9BRm.png
With the skate now needing to be 15mm higher off of the ground Ferrari seem to still be using it, while RB opted to go with an edge wing in '23.
GREAT STUFF, thank you so much. =D> =D> =D> =D>

Now I understand why Ferraris floor edge is different.

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Vanja #66
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Joined: 19 Mar 2012, 16:38

Re: Ferrari SF23

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Clear's interview where he explains several points about the car's design and where it's missing out. Lots of details.

https://www.motorsport.com/f1/news/ferr ... /10467868/

Although the /driver) duo had initially reported during Friday practice that the car was less spiky, Ferrari says making the car increasingly “predictable” remains top of the priority list.

Jock Clear - who fronted the Ferrari car technical presentation to the media last weekend - reckoned the SF-23’s temperament was a blend of set-up and aerodynamic characteristics. Clear, Leclerc’s driver coach, explained: “It's always a combination of both.

“With a new aero package over the winter, we've taken a while to find the set-up.This floor contributes to getting the car in a better window, as the drivers were reporting earlier it is peaky. We need to get rid of some of that peakiness. That's probably the main focus at the moment, to make the car a bit more benign so the drivers have a bit more confidence.”

Clear outlined that in this ground-effects era of F1, revising the way the floor interacts with the rear wing and tyres was a critical area. This has only been enhanced by the mandated 15mm rise in the floor edge for 2023, a measure introduced by the FIA to limit porpoising.

He said: “The height of the floor relative to the ground is a huge influence on the whole package of downforce. You generate so much downforce on the floor and the rear wing, but they're interconnected. So, that's the area of most people's development. The section just ahead of the rear wheel, where you're controlling the flow that goes either outside the wheel or inside the wheel and therefore into the diffuser area. The changes are quite subtle… but actually, in aerodynamic terms, they're quite powerful. It's just a response to the feedback we've had from the drivers through the first four races of the year in where the car is deficient.”

He continued: “You can move the air around slightly… so give the driver a more consistent balance through medium-speed, high-speed, low-speed, and braking and entry and then exit. All those areas where the floor is moving around a lot, we can try and make the car a bit more benign. That makes it more predictable for the driver.”
The way I see it, the problem is as we discussed here - the car has a good peak of all-round performance, but it has a narrow window in many ways. What is described here sounds like rear tyre squirt management, which Ferrari now has a lot of trouble with (since it wasn't reported last year in this way). Reading between the lines a bit, it came with floor edge raising - which coincides with less predictable car in 2022 since Spa, after they had to raise it to help with bouncing.

This remains an issue where a more stable car would help (you don't care if you have a peaky car if you can keep it at that peak at any time at any track) so suspension can help a lot with it in practice. However, as I mentioned earlier, there is a certain physical similarity with W13 - large and exposed rear of the floor (noticeably larger surface than 2022 car) I wouldn't be surprised if this is also part of the reasons for Ferrari's issues, a floor too flexible for its own good. Since Clear himself says that small changes in geometry have a big effect, having that rear part of the floor that flexes in a way you don't expect at times you don't expect will leave you with a lot of performance swings and head scratching.
And they call it a stall. A STALL!

#DwarvesAreNaturalSprinters
#BlessYouLaddie

AR3-GP
AR3-GP
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Joined: 06 Jul 2021, 01:22

Re: Ferrari SF23

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The floor needs to have a consistent and useable amount of downforce. Peak downforce is meaningless if the drivers are not deriving the benefit of it. We don't have absolute numbers so we're all just guessing what "peak" means anyway.
A lion must kill its prey.

LM10
LM10
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Joined: 07 Mar 2018, 00:07

Re: Ferrari SF23

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Vanja #66 wrote: The way I see it, the problem is as we discussed here - the car has a good peak of all-round performance, but it has a narrow window in many ways. What is described here sounds like rear tyre squirt management, which Ferrari now has a lot of trouble with (since it wasn't reported last year in this way). Reading between the lines a bit, it came with floor edge raising - which coincides with less predictable car in 2022 since Spa, after they had to raise it to help with bouncing.

This remains an issue where a more stable car would help (you don't care if you have a peaky car if you can keep it at that peak at any time at any track) so suspension can help a lot with it in practice. However, as I mentioned earlier, there is a certain physical similarity with W13 - large and exposed rear of the floor (noticeably larger surface than 2022 car) I wouldn't be surprised if this is also part of the reasons for Ferrari's issues, a floor too flexible for its own good. Since Clear himself says that small changes in geometry have a big effect, having that rear part of the floor that flexes in a way you don't expect at times you don't expect will leave you with a lot of performance swings and head scratching.
Might Ferrari be doing one of the short-term solutions mentioned as an option by you? Do you think the floor they brought to Miami for less peakiness produces less downforce?
The other option would be to try to cope with the peakiness/the downforce by doing suspension work which would need more complex redesign of it - so not before next season.

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Vanja #66
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Re: Ferrari SF23

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LM10 wrote:
11 May 2023, 21:23
Might Ferrari be doing one of the short-term solutions mentioned as an option by you? Do you think the floor they brought to Miami for less peakiness produces less downforce?
The other option would be to try to cope with the peakiness/the downforce by doing suspension work which would need more complex redesign of it - so not before next season.
No, it's not like that, I'm saying it might have the same issues with too flexible floor like W13, but the problems are different. If tyre squirt creeps inside diffuser it will mess up the perofrmance. Since it happens at different speeds and influences the balance, it clearly has a lot to do with ride height. So at one speed range you have decent performance of diffuser, but at other range it drops due to tyre squirt (and/or other turbulence structures) so you get oversteer etc...
And they call it a stall. A STALL!

#DwarvesAreNaturalSprinters
#BlessYouLaddie

Farnborough
Farnborough
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Joined: 18 Mar 2023, 14:15

Re: Ferrari SF23

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Vanja #66 wrote:
12 May 2023, 08:18
LM10 wrote:
11 May 2023, 21:23
Might Ferrari be doing one of the short-term solutions mentioned as an option by you? Do you think the floor they brought to Miami for less peakiness produces less downforce?
The other option would be to try to cope with the peakiness/the downforce by doing suspension work which would need more complex redesign of it - so not before next season.
No, it's not like that, I'm saying it might have the same issues with too flexible floor like W13, but the problems are different. If tyre squirt creeps inside diffuser it will mess up the perofrmance. Since it happens at different speeds and influences the balance, it clearly has a lot to do with ride height. So at one speed range you have decent performance of diffuser, but at other range it drops due to tyre squirt (and/or other turbulence structures) so you get oversteer etc...
This area appears considerably different to RB in that the airflow from side of SF23 and ultimately travelling between the wheels, looks to favour volume over top of diffuser structure as primary, in comparison to concentration on sealing that void between the inner tyre face and diffuser vertical fence.
As pointed out above, any switching effect and nonlinearity eats driver confidence fast especially if circuit setup demands higher level of downforce as routine. The higher the peak, then the more contrasting the loss feels, and looks like LC in Miami.
Notice LC caught the first one in Miami, then ran out of space. The second time, lost it first completely, then had a couple more attempts at getting it back. Trying very hard with something that's not producing the same response each time, illustrates well the grip affects being discussed here.

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bluechris
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Joined: 26 Jun 2019, 20:28
Location: Athens

Re: Ferrari SF23

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May I put a question to the most knowledgeable people here?

From what I understand, the rule that paralyzed Ferrari last year is not being applied silently. (If not correct, ignore my question).
So the question is, why Ferrari doesn't roll back to the 1st iteration of the 2022 car and with this year motor and a better suspension, will not be overall better?

marcel171281
marcel171281
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Joined: 22 Feb 2020, 12:08

Re: Ferrari SF23

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bluechris wrote:
12 May 2023, 12:05
May I put a question to the most knowledgeable people here?

From what I understand, the rule that paralyzed Ferrari last year is not being applied silently. (If not correct, ignore my question).
So the question is, why Ferrari doesn't roll back to the 1st iteration of the 2022 car and with this year motor and a better suspension, will not be overall better?
Because of 3 things. First, the rules are different (minimum floor edge height and diffuser throat height) and therefore the 2022 car would be illegal this year.

Second, a formula 1 car is designed as a total package, where everything has to work in harmony. Suspension influences aero and vice versa. Engine (and relevant cooling apparatus) may also dictate certain shapes of the car, like airboxes, sidepods etc. and, probably even more so, vice versa. Even the location of mandatory impact structures is dependent on packaging of certain internal, maybe powertrains related, parts. Things like intercoolers, radiators etc. This could mean some of the 2023 internal component needed for 2023 drive train, would not fit on the 2022 car.

Third, the 2023 Ferrari is better than the 2022 Ferrari. Its problem is that the competition made bigger steps. Going back to last years car, would drop them even further down the grid.

AR3-GP
AR3-GP
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Joined: 06 Jul 2021, 01:22

Re: Ferrari SF23

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Between Baku(x1) and Miami (x2), there are still no floor pictures? :wtf:
A lion must kill its prey.

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organic
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Location: Cambridge, UK

Re: Ferrari SF23

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AR3-GP wrote:
12 May 2023, 18:48
Between Baku(x1) and Miami (x2), there are still no floor pictures? :wtf:
They're not lifting the cars more than they need to anymore. Very frustrating. Only in Zandvoort since they stopped lifting the cars too much have we had any decent underfloor pics (F1-75)

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vorticism
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Re: Ferrari SF23

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organic wrote:
12 May 2023, 20:56
AR3-GP wrote:
12 May 2023, 18:48
Between Baku(x1) and Miami (x2), there are still no floor pictures? :wtf:
They're not lifting the cars more than they need to anymore. Very frustrating. Only in Zandvoort since they stopped lifting the cars too much have we had any decent underfloor pics (F1-75)
And yet, Red Bull walked the business side of their floor down the pit lane last year in full view of photographers' cameras.
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FDD
FDD
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Re: Ferrari SF23

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Vanja #66 wrote:
12 May 2023, 08:18
LM10 wrote:
11 May 2023, 21:23
Might Ferrari be doing one of the short-term solutions mentioned as an option by you? Do you think the floor they brought to Miami for less peakiness produces less downforce?
The other option would be to try to cope with the peakiness/the downforce by doing suspension work which would need more complex redesign of it - so not before next season.
No, it's not like that, I'm saying it might have the same issues with too flexible floor like W13, but the problems are different. If tyre squirt creeps inside diffuser it will mess up the perofrmance. Since it happens at different speeds and influences the balance, it clearly has a lot to do with ride height. So at one speed range you have decent performance of diffuser, but at other range it drops due to tyre squirt (and/or other turbulence structures) so you get oversteer etc...
Does what you described here is actually connected with the "peakiness" of the car?