Ferrari Power Unit Hardware & Software

[aleks_ader]

SF70H: Spa 2017 -> Wider packaging
SF71H: Now -> Wider than SF70H in pre season, but slimmer than Spa 2017, so somewhere in the middle of both

Any thoughts?

They intruduced wider packaging in Malaysia. They put that rear rad over the gearbox there. Hence there is the reason to make bodywork wider.

Remember...
https://cdn-7.motorsport.com/images/amp ... 751600.jpg

[ferkan]

Im not quite talking about rear sidepod outlsets, but bodywork around entire engine seems bulkier even though car is longer.

[LM10]

SF70H: Spa 2017 -> Wider packaging
SF71H: Now -> Wider than SF70H in pre season, but slimmer than Spa 2017, so somewhere in the middle of both

Any thoughts?

They intruduced wider packaging in Malaysia. They put that rear rad over the gearbox there. Hence there is the reason to make bodywork wider.

Remember...
https://cdn-7.motorsport.com/images/amp ... 751600.jpg

Nice, thank you!

[hurril]

The variable intakes seem to be important judging by the direction of development in all the (other) teams.

[ringo]

It seems the intercooler is bigger to me as the air intake pipes to the turbo are pushed outward before the go into the compressor. This is to make space for a bigger inter cooler.
The capacity of that intercooler that was hanging off the back of the engine in 2017 is now joined into the one intercooler on the engine now as a bigger unit.

[J.A.W.]

I really hate the Oil burning discussion in the engine threads. It's just speculating over the mundane and really adds no
real technical value to the engine topic.
There is nothing interesting talking about who was burning oil in the past. That belongs in general chat or something.

"In the past"?

Seems not.
Q in Melbourne - clearly showed a prominent emission of misty vapours - issuing from the rear of the Ferrari,
when exiting the pit, a technical matter, to be sure..

[PlatinumZealot]

I really hate the Oil burning discussion in the engine threads. It's just speculating over the mundane and really adds no
real technical value to the engine topic.
There is nothing interesting talking about who was burning oil in the past. That belongs in general chat or something.

"In the past"?

Seems not.
Q in Melbourne - clearly showed a prominent emission of misty vapours - issuing from the rear of the Ferrari,
when exiting the pit, a technical matter, to be sure..

You are actually talking about soemthing different now. Which is not much related to the oil burning blame game arguments.
Routing the vent out back isnt really anything profound either however yes the prominent emmisions tell us Ferrari has a higher volume of particles in the blow-by gasses at low engine speeds. Why is this so? That could be a constructive discussion. Better than the wild beaten to death old burning speculation.

[johnny comelately]

Apologise for posting this again, but the bit of discussion was not conclusive:

1. could they be running NO oil rings?
2. what is the throttling system on the Ferrari?
3. are Ferrari using a variable intake length?

[FightingHellPhish]

I really hate the Oil burning discussion in the engine threads. It's just speculating over the mundane and really adds no
real technical value to the engine topic.
There is nothing interesting talking about who was burning oil in the past. That belongs in general chat or something.

"In the past"?

Seems not.
Q in Melbourne - clearly showed a prominent emission of misty vapours - issuing from the rear of the Ferrari,
when exiting the pit, a technical matter, to be sure..

If you were to disconnect the PCV system on any car and vent to atmo, you would see similar. the issue is larger on forced induction cars.

[PlatinumZealot]

Apologise for posting this again, but the bit of discussion was not conclusive:

1. could they be running NO oil rings?
2. what is the throttling system on the Ferrari?
3. are Ferrari using a variable intake length?

They must have oil rings. The number of them and degree of tightness is another question.
Throttling system is Individual like always. For quicker cylinder filling (response).
Yes using variable intake from 2015.

[johnny comelately]

Apologise for posting this again, but the bit of discussion was not conclusive:

1. could they be running NO oil rings?
2. what is the throttling system on the Ferrari?
3. are Ferrari using a variable intake length?

They must have oil rings. The number of them and degree of tightness is another question.
Throttling system is Individual like always. For quicker cylinder filling (response).
Yes using variable intake from 2015.

OK, Thanks for the reply

[J.A.W.]

I really hate the Oil burning discussion in the engine threads. It's just speculating over the mundane and really adds no
real technical value to the engine topic.
There is nothing interesting talking about who was burning oil in the past. That belongs in general chat or something.

"In the past"?

Seems not.
Q in Melbourne - clearly showed a prominent emission of misty vapours - issuing from the rear of the Ferrari,
when exiting the pit, a technical matter, to be sure..

If you were to disconnect the PCV system on any car and vent to atmo, you would see similar. the issue is larger on forced induction cars.

Doubt it..

1stly, it is highly unlikely that forced induction F1 mills do not run at -ve pressure in the crankcase,
so 'blow-by' as such, which will normally be a sign of malfunctioning/worn-out internal sealing, is out..

Unless of course, it is a deliberate oil-mist consumption mechanism 'breathing' - at a low boost state..

('Blow-by' venting to the slipstream, while racing - has to be a 'probable cause' for a 'black flag' deal, no?)

[johnny comelately]

"In the past"?

Seems not.
Q in Melbourne - clearly showed a prominent emission of misty vapours - issuing from the rear of the Ferrari,
when exiting the pit, a technical matter, to be sure..

If you were to disconnect the PCV system on any car and vent to atmo, you would see similar. the issue is larger on forced induction cars.

Doubt it..

1stly, it is highly unlikely that forced induction F1 mills do not run at -ve pressure in the crankcase,
so 'blow-by' as such, which will normally be a sign of malfunctioning/worn-out internal sealing, is out..

Unless of course, it is a deliberate oil-mist consumption mechanism 'breathing' - at a low boost state..

('Blow-by' venting to the slipstream, while racing - has to be a 'probable cause' for a 'black flag' deal, no?)

exactly re black flag

[J.A.W.]

I really hate the Oil burning discussion in the engine threads. It's just speculating over the mundane and really adds no
real technical value to the engine topic.
There is nothing interesting talking about who was burning oil in the past. That belongs in general chat or something.

"In the past"?

Seems not.
Q in Melbourne - clearly showed a prominent emission of misty vapours - issuing from the rear of the Ferrari,
when exiting the pit, a technical matter, to be sure..

You are actually talking about soemthing different now. Which is not much related to the oil burning blame game arguments.
Routing the vent out back isnt really anything profound either however yes the prominent emmisions tell us Ferrari has a higher volume of particles in the blow-by gasses at low engine speeds. Why is this so? That could be a constructive discussion. Better than the wild beaten to death old burning speculation.

How is it P-Z, you so steadfastly fail to see 'the timber for the trees' & 'where there's smoke - there's fire'?

Seems self-evident that such vented vapour will not be allowed to get worse, & blow over following drivers.

& also that it it cannot be a 'random' matter, indicative of a poor mechanical state, so thus must be a tell-
tale of oil byproducts to be used - when the risk of low-rpm plug-fouling - is not occuring..

[PlatinumZealot]

That smoking happens on every car.
Pull out the PCV on your street car and you will see the same thing.

Notice the smoking only happens at slow speeds. I am no F1 engine expert but likely the piston rings are made to work in certain load ranges. This is expected as the rings work pressure. The low cylinder pressures idling in the pitlane probably put the rings out of working range.