Scuderia Ferrari SF15-T

[timbo]

And why is it inconceivable that Ferrari are running similarly shorter ratios etc in Jerez?

Shorter/longer --> no difference (within reason). Proven by merc/williams examples last year. Forget about gear ratios already people.

I'm not saying you're not right, but do you mind explaining why the length of the ratios makes no (or not much) difference. Why is the principal any different with these engines?

The difference is that above 10.5k rpm the fuel flow is constant (as defined by the rules), thus the power curve is flatter. Usually higher revs => more air => more fuel => more power.

[Juzh]

And why is it inconceivable that Ferrari are running similarly shorter ratios etc in Jerez?

Shorter/longer --> no difference (within reason). Proven by merc/williams examples last year. Forget about gear ratios already people.

I'm not saying you're not right, but do you mind explaining why the length of the ratios makes no (or not much) difference. Why is the principal any different with these engines?

What timbo said. Artificial fuel flow limit renders gear ratios almost entirely obsolete. Give or take 1-2 kmh. Just look at monaco speed trap figures: http://www.formula1.com/results/season/ ... _trap.html
Almost the same numbers for williams and merc despite one running short and other ultra long ratios.

Usually higher revs => more air => more fuel => more power.

But because 100kg/h => higher revs => same fuel => same air => more friction => less power.

[ParkerArt]

But because 100kg/h => higher revs => same fuel => same air => more friction => less power.

Wouldn't torque also fall off as revs rise with this fuel limit? I thought I remember a radio message to Rosberg in one of the earlier races to use lower gears with higher revs to help with tire management and corner exit oversteer.

[Morteza]

[Juzh]

But because 100kg/h => higher revs => same fuel => same air => more friction => less power.

Wouldn't torque also fall off as revs rise with this fuel limit? I thought I remember a radio message to Rosberg in one of the earlier races to use lower gears with higher revs to help with tire management and corner exit oversteer.

High revs and less fuel consumption don't mix. I believe he was told the opposite. Higher gears for lower revs.

[Lorenzo_Bandini]

Thanks to Yoshi on autosport forum

http://m.auto-motor-und-sport.de/formel ... 77403.html

- Shortest car in the field after Mercedes
- Mercedes is able to place the sidepods & cockpitt in more distance to the front wheels than Ferrari
- But Ferrari is able to take more space under the chassis tube => Ferrari is there on the level of RB
- Wheelbase shorter than with the old car
- Ferrari has the longest nose in the field next to Torror Rosso
- The drivers are happy with the driveability
- Ferrari is working on the short noise (tests are running internally) - just to be prepared
- So far they didn't find any significant aero benefits
- Ferrari is still running with the pull road suspension, but they focused on fine tuning and worked on the aerodynamic site
- They are using this year the very expensive cooler from the company Mezzotech
    - the same cooling power but with 15% less area
    - the advantage of this cooler is especially in slow corners
    - the disadvantage of this technology is that it reacts stronger on dirty air
- Oil tank has been replaced from the gearbox back into the right place between chassis and the tank-
- smallest sidepoids in the field
- Biggest step has been made with the engine
    - the exhaust has been packaged much better compared to last year
    - the lengths of the exhaust has been optimised
    - tailpipe is thinner
    - turbo charger is bigger than the one from last year
    - the current turbo charger for testing is a temporary solution => the charger will be bigger once more.

[Silent Storm]

- smallest sidepoids in the field.

I didn't understand this?? SF15-T does not have the smallest sidepod.

[viperx]

- smallest sidepoids in the field.

I didn't understand this?? SF15-T does not have the smallest sidepod.

Well if you have a look at this picture you can see that Ferrari's sidepods/rear end packaging is at least on par with Mercedes if not even better

[Silent Storm]

- smallest sidepoids in the field.

I didn't understand this?? SF15-T does not have the smallest sidepod.

Well if you have a look at this picture you can see that Ferrari's sidepods/rear end packaging is at least on par with Mercedes if not even better

http://img3.auto-motor-und-sport.de/Fer ... 843458.jpg

I get your point but I think Williams and Mclaren have slightly smaller sidepods.

[Crucial_Xtreme]

- smallest sidepoids in the field.

I didn't understand this?? SF15-T does not have the smallest sidepod.

AMuS is talking about the sidepod openings, not the actual size of the sidepods themselves. If you look at what was said in context, they're talking about the very expensive, small radiators. and mention the small sidepod openings.

[Silent Storm]

- smallest sidepoids in the field.

I didn't understand this?? SF15-T does not have the smallest sidepod.

AMuS is talking about the sidepod openings, not the actual size of the sidepods themselves. If you look at what was said in context, they're talking about the very expensive, small radiators. and mention the small sidepod openings.

I get it now that they are talking about the sidepod openings.. Does having a smaller opening have a effect on drag?

[gandharva]

- smallest sidepoids in the field.

I didn't understand this?? SF15-T does not have the smallest sidepod.

AMuS is talking about the sidepod openings, not the actual size of the sidepods themselves. If you look at what was said in context, they're talking about the very expensive, small radiators. and mention the small sidepod openings.

No. The article says exactly this: "F14-T had the smalles sidepods of all cars. This is the same this year."

Both is just plain wrong (as lots of other stuff in recent AMUS articles...).

[Crucial_Xtreme]

- smallest sidepoids in the field.

I didn't understand this?? SF15-T does not have the smallest sidepod.

AMuS is talking about the sidepod openings, not the actual size of the sidepods themselves. If you look at what was said in context, they're talking about the very expensive, small radiators. and mention the small sidepod openings.

I get it now that they are talking about the sidepod openings.. Does having a smaller opening have a effect on drag?

Yes of course the openings have an effect on drag as does how the radiators are packaged inside the pods themselves. Internal aerodynamics are quite important. For instance, look Here to see how Mercedes bodied the inside of their sidepods to help reduce drag and improve airflow quality inside the W05 sidepods.

[Blackout]

For instance, look Here to see how Mercedes bodied the inside of their sidepods to help reduce drag and improve airflow quality inside the W05 sidepods.

IMO this is plain wrong too because there is no air circulating around those bodied parts. The air that enters the sidepod intake doesnt go there. Those bodied parts are outside the sidepod's air tunnel. They're placed in a different room; between the sidepod tunnel and the bodywork... They might have a small pipe theat provides one of the electronic parts with air, like in some other cars, but there no real air flow around there.

[f1316]

- smallest sidepoids in the field.

I didn't understand this?? SF15-T does not have the smallest sidepod.

AMuS is talking about the sidepod openings, not the actual size of the sidepods themselves. If you look at what was said in context, they're talking about the very expensive, small radiators. and mention the small sidepod openings.

No. The article says exactly this: "F14-T had the smalles sidepods of all cars. This is the same this year."

Both is just plain wrong (as lots of other stuff in recent AMUS articles...).

I haven't seen thorough enough analysis to be sure whose sidepods are the smallest- but what I would say is that sidepods like the mclaren's are very *tight* but also very *long* (the car is clearly much longer than the Mercedes or the Ferrari).

So long sidepods might still have more total volume than shorter, slightly less tapering ones.