Ferrari Power Unit Hardware & Software

[roon]

Supposedly "air breaks down at about 30 kV/cm." Automotive ignition systems use higher voltages. If I assume 25.000V per mm:

8mm, 200kV (CC roof to piston face estimate)
40mm, 1MV (cylinder bore radius)
80mm, 2MV

I would guess air density alters the equation somewhat. Humidity does. Water injection not only for charge cooling but for increasing the conductivity of charge air, may be something to consider. If some crazy fuel supplier were to formulate a more conductive form of gasoline, that may also help jump the gap.

Oil formulation is free, maybe they could add gold, silver or copper powders fine enough to aerosol in the sump gases for engine ingestion (that now-banned practice).

[godlameroso]

You'd only need enough spark for the prechamber. There's no limit to the number of electrodes, or number of spark gaps. Only that the plug may only discharge a maximum of 5 times per cycle.

There is a limit to the electrical conductivity of the fuel.

[roon]

There is a limit to the electrical conductivity of the fuel.

In the regs? Or in general?

[roon]

From the Ferrari unveil video. V10 maybe?







Can't tell if this billet is flat-plane (V8 erc) or 120* (V6):

[godlameroso]

There is a limit to the electrical conductivity of the fuel.

In the regs? Or in general?

In the regs.

[johnny comelately]

[PlatinumZealot]

From the Ferrari unveil video. V10 maybe?

https://i.imgur.com/mB4U8Cj.png

https://i.imgur.com/sMamGu2.png

https://i.imgur.com/lvdhXpA.png

Can't tell if this billet is flat-plane (V8 erc) or 120* (V6):

https://i.imgur.com/qgqDZ1C.png

Hmm. Any idea Why is the steel so black? Chromoly crank?

[johnny comelately]

With flame ignition, you lose a lot of its effectiveness if it not shot across the chamber. Shooting through the short side (like most mooted pictures) is not optimised.

[63l8qrrfy6]

From the Ferrari unveil video. V10 maybe?

https://i.imgur.com/mB4U8Cj.png

https://i.imgur.com/sMamGu2.png

https://i.imgur.com/lvdhXpA.png

Can't tell if this billet is flat-plane (V8 erc) or 120* (V6):

https://i.imgur.com/qgqDZ1C.png

Hmm. Any idea Why is the steel so black? Chromoly crank?

Yes, 3CrMoV is very popular

[seezung]

All three ScuderiaFerrari powered cars (Ferrari / Haas / Sauber) seem to be venting steam (unclear what from?) through the rear impact structure. Hard to get a picture of but clear to see trackside.

[Sieper]

Could it be that it is oil vapor being vented? Superfluous oil from the crankcase must be vented directly down and may not be reused/injected into the plenum this year anymore. So likely they chose to use a separate channel for that?

[otti]

All three ScuderiaFerrari powered cars (Ferrari / Haas / Sauber) seem to be venting steam (unclear what from?) through the rear impact structure. Hard to get a picture of but clear to see trackside.

Another picture with the smoke:
https://imgr4.auto-motor-und-sport.de/C ... 149167.jpg

you are right, if you have a look on the rear of the ferrari powered cars, the lower part of the crash structure is looking the same on all cars (this little slot)
They are clearly venting something.

[MrPotatoHead]

From the Ferrari unveil video. V10 maybe?

https://i.imgur.com/mB4U8Cj.png

https://i.imgur.com/sMamGu2.png

https://i.imgur.com/lvdhXpA.png

Can't tell if this billet is flat-plane (V8 erc) or 120* (V6):

https://i.imgur.com/qgqDZ1C.png

Hmm. Any idea Why is the steel so black? Chromoly crank?

DLC coating more than likely.
That one is easy.

You'd be amazed how much is DLC coated on modern race cars.

[PlatinumZealot]

All three ScuderiaFerrari powered cars (Ferrari / Haas / Sauber) seem to be venting steam (unclear what from?) through the rear impact structure. Hard to get a picture of but clear to see trackside.

https://pbs.twimg.com/media/DXDOtibW4AA1vcA.jpg

It's 5 degrees Celcius at the track. So likely just condensation from fins on the back of the differential I am guessing. That would make that slot a cooling vent.

[outsid3r]

All three ScuderiaFerrari powered cars (Ferrari / Haas / Sauber) seem to be venting steam (unclear what from?) through the rear impact structure. Hard to get a picture of but clear to see trackside.

https://pbs.twimg.com/media/DXDOtibW4AA1vcA.jpg

I noticed this too in other pictures but assumed it was just a rooster trail... but then again, how would this show only in the crash structure area and nothing from the diffuser? There might be something else going on here...