Ferrari Power Unit Hardware & Software

[Hoffman900]

Monza is special in terms of full throttle percentage.

Not really. It’s also the fastest. 5hp is negligible at their average speeds. Figure they’re consuming 750hp or so just to push the car through the air. 5hp is a tenth of a mph or so in trap speeds, if even.

Also, Honda has documented shaving 12kw off peak for more mid range and, and gone faster at Monza.

Regardless, I enjoyed the retro liveries on the cars this weekend.

5hp at the top end isn't the relevant figure. It's the bottom end that matters because you carry it all the way down the straight from beginning to end.

Also "Honda gone faster at monza", by what metric is this quantified?

It was to illustrate a point that “5 hp more” is a completely empty statement.The Honda was in reference to 2009. No one here knows what these current power curves look like.

I have illustrated here many times, with math, that these cars are consuming almost all their power in just maintaining speed. Let’s say they need 700hp to do 170mph. 5hp is less than 1%, it’s inmeasurable on the track. 10-15hp more, yeah you might start seeing it.

[AR3-GP]

Not really. It’s also the fastest. 5hp is negligible at their average speeds. Figure they’re consuming 750hp or so just to push the car through the air. 5hp is a tenth of a mph or so in trap speeds, if even.

Also, Honda has documented shaving 12kw off peak for more mid range and, and gone faster at Monza.

Regardless, I enjoyed the retro liveries on the cars this weekend.

5hp at the top end isn't the relevant figure. It's the bottom end that matters because you carry it all the way down the straight from beginning to end.

Also "Honda gone faster at monza", by what metric is this quantified?

It was to illustrate a point that “5 hp more” is a completely empty statement.The Honda was in reference to 2009. No one here knows what these current power curves look like.

I have illustrated here many times, with math, that these cars are consuming almost all their power in just maintaining speed. Let’s say they need 700hp to do 170mph. 5hp is less than 1%, it’s inmeasurable on the track. 10-15hp more, yeah you might start seeing it.

It’s all relative to the other manufacturers though. Ferrari may have already had a 5hp advantage as it’s been reported everywhere even by RB that Ferrari has the most peak power earlier in the season. So adding another 5hp put thems into the 10-15 hp range. It’s not something you can handwave away. A bigger mountain for RB, and even bigger still relative to Renault.

Let’s just say….if it was worthless and not going to show up in the time sheet, they never would have brought the upgrade. It’s not about adding 5hp at top speed. It’s 5hp coming in at corner exit. These PUs have a small rpm band and 8 gears (?). So whatever is showing up at top speed, gets crossed at low speed because of the gearing recycling the engine rpm.

[Hoffman900]

5hp at the top end isn't the relevant figure. It's the bottom end that matters because you carry it all the way down the straight from beginning to end.

Also "Honda gone faster at monza", by what metric is this quantified?

It was to illustrate a point that “5 hp more” is a completely empty statement.The Honda was in reference to 2009. No one here knows what these current power curves look like.

I have illustrated here many times, with math, that these cars are consuming almost all their power in just maintaining speed. Let’s say they need 700hp to do 170mph. 5hp is less than 1%, it’s inmeasurable on the track. 10-15hp more, yeah you might start seeing it.

It’s all relative to the other manufacturers though. Ferrari may have already had a 5hp advantage as it’s been reported everywhere even by RB that Ferrari has the most peak power earlier in the season. So adding another 5hp put thems into the 10-15 hp range. It’s not something you can handwave away. A bigger mountain for RB, and even bigger still relative to Renault.

Let’s just say….it it was worthless they never would have brought the upgrade. Is that a satisfactory assessment?

No, but anyone in the media putting numbers on it is blowing smoke. A click on a front wing can be a 20hp difference in drag. Hard to quantify any of this, let alone something less than 1%.

[AR3-GP]

It was to illustrate a point that “5 hp more” is a completely empty statement.The Honda was in reference to 2009. No one here knows what these current power curves look like.

I have illustrated here many times, with math, that these cars are consuming almost all their power in just maintaining speed. Let’s say they need 700hp to do 170mph. 5hp is less than 1%, it’s inmeasurable on the track. 10-15hp more, yeah you might start seeing it.

It’s all relative to the other manufacturers though. Ferrari may have already had a 5hp advantage as it’s been reported everywhere even by RB that Ferrari has the most peak power earlier in the season. So adding another 5hp put thems into the 10-15 hp range. It’s not something you can handwave away. A bigger mountain for RB, and even bigger still relative to Renault.

Let’s just say….it it was worthless they never would have brought the upgrade. Is that a satisfactory assessment?

No, but anyone in the media putting numbers on it is blowing smoke. A click on a front wing can be a 20hp difference in drag. Hard to quantify any of this, let alone something less than 1%.

Drag depends on velocity. The calculation you like to mention is only relevant at top end. Says nothing about the low end acceleration boost.

If Ferrari have stated they brought a performance upgrade to the PU, then we can conclude that it was an improvement on the time sheet. I don’t understand why this is an argument.

[Hoffman900]

It’s all relative to the other manufacturers though. Ferrari may have already had a 5hp advantage as it’s been reported everywhere even by RB that Ferrari has the most peak power earlier in the season. So adding another 5hp put thems into the 10-15 hp range. It’s not something you can handwave away. A bigger mountain for RB, and even bigger still relative to Renault.

Let’s just say….it it was worthless they never would have brought the upgrade. Is that a satisfactory assessment?

No, but anyone in the media putting numbers on it is blowing smoke. A click on a front wing can be a 20hp difference in drag. Hard to quantify any of this, let alone something less than 1%.

Drag depends on velocity. The calculation you like to mention is only relevant at top end. Says nothing about the low end acceleration boost.

If Ferrari have stated they brought a performance upgrade to the PU, then we can conclude that it was an improvement on the time sheet. I don’t understand why this is an argument.

The argument is putting a value on it. If anyone is quoting any numbers in the media, it’s just a made up number.

[AR3-GP]

No, but anyone in the media putting numbers on it is blowing smoke. A click on a front wing can be a 20hp difference in drag. Hard to quantify any of this, let alone something less than 1%.

Drag depends on velocity. The calculation you like to mention is only relevant at top end. Says nothing about the low end acceleration boost.

If Ferrari have stated they brought a performance upgrade to the PU, then we can conclude that it was an improvement on the time sheet. I don’t understand why this is an argument.

The argument is putting a value on it. If anyone is quoting any numbers in the media, it’s just a made up number.

your argument shifted from "5hp is negligible" to "they are making up numbers". Whether or not anyone is making up numbers, 5hp is a measurable improvement on lap timer. It won't matter to top end, but exiting several corners, the difference adds up.

[Hoffman900]

Drag depends on velocity. The calculation you like to mention is only relevant at top end. Says nothing about the low end acceleration boost.

If Ferrari have stated they brought a performance upgrade to the PU, then we can conclude that it was an improvement on the time sheet. I don’t understand why this is an argument.

The argument is putting a value on it. If anyone is quoting any numbers in the media, it’s just a made up number.

your argument shifted from "5hp is negligible" to "they are making up numbers". Whether or not anyone is making up numbers, 5hp is a measurable improvement on lap timer. It won't matter to top end, but exiting several corners, the difference adds up.

It’s not. It’s hard to measure 5hp on something making even 250bhp.

Off the corner they’re all in on deployment. Say they’re 1000hp between all the systems, 5hp is half a percent. It’s negligible.

[mzso]

Does it settle the split turbo debate?

The 2022 power unit is brand new.

The preceeding engine was also debated. But I guess we're right back.

[AR3-GP]

Does it settle the split turbo debate?

The 2022 power unit is brand new.

The preceeding engine was also debated. But I guess we're right back.

Unfortunately

[lio007]

I thought they have to show the latest one with which they are racing now.

[saviour stivala]

The 2022 power unit is brand new.

The preceeding engine was also debated. But I guess we're right back.

Unfortunately

If what is shown (photo) is the 2021 power unit it means it is from SF-21 - PROJECT 673 - THAT USED PU-065/6. The 2022 power unit is from FI-75 - PROJECT 674 - THAT USED PU-066/7. What they raced at Monza this past weekend have been revised three times (changes permitted for reliability reasons) SF-23 - PROJECT 675 - WHICH IS USING PU-066/10. All that is apart the revised ES that was done halfway through the season on the 2021 on 065/6.

[aleks_ader]

I still think main layout of PU dint change all from 2019. Why would they change it it clearly worked.
Main differences are in sizes of compressor wheels, turbines and ICE TJI chambers (those are tightly interlinked). So they focused in main performance differentiators.

PLUS at end they just added all other evolutionarily adjustments like coatings, refined processes, material compositions. they also thanks to radial intercooler design they "just" refined already existing concept (H2O intercooler infront vee).

[dialtone]

[wuzak]

The track map showing the zones for various modes shows how important the MGUH is.

[ryaan2904]

Is it the 2021 engine or the 2023 engine? The earlier twitter post said 2021 engine.