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Guys, i wonder, why the Mercedes factory team put the filter so high in the airbox ?

PlatinumZealot wrote:Source of water in an F1 car.

Driver drinks bottle... 2 liters
Driver bladder (piss bag)...... 0.5 liters

Therefore you now have 2.5 liters of water to spray into the intake duct. This should be enough for a good number of overtaking events during the race.

Not quite. I imagine if there is 0.5L in the piss bag, there would only be about 1.5L in the drink bottle...

Are you kidding?

Serious racers would of course preload their bladders,
& have had a bladder training coach to enable/maximise potential bladder capacity..

Are diuretic Rx included on the list of FIA banned substances?

A hard night before on the booze bingo - water alcohol injection.

Straight line driving might be compromised though....

Down force/G momentum might be a bit harsh on the ol' hangover head too..

Gjoqaaassaqa

Wasn't yesterday the day for teams to submit engines to the FIA? At least an initial engine for Honda? Maybe due to rule change the others can submit at the first race?

Honda will not know how many development tokens they have in 2015 until all the other engine companies submit their engines and token usage to the FIA.

Anyway, in theory much of the 2015 season was locked into place yesterday and the season itself will simply be a process of discovering what has already been done. But I suppose much engineering is like that.

bill shoe wrote:Wasn't yesterday the day for teams to submit engines to the FIA? At least an initial engine for Honda? Maybe due to rule change the others can submit at the first race?

No - there is no date for submission this year, because the FIA forgot to update it in the rules.

Moose wrote:

bill shoe wrote:Wasn't yesterday the day for teams to submit engines to the FIA? At least an initial engine for Honda? Maybe due to rule change the others can submit at the first race?

No - there is no date for submission this year, because the FIA forgot to update it in the rules.

So Honda did have to submit, but not competitors. That means Honda will not know how many tokens their competitors used (and thus how many Honda will have available in 2015) until the first race of the season when the competitors (presumably) submit their initial 2015 engines then?

Or am I still understanding this situation wrong?

A link for those interested in engine oil chemistry.

Vortex37-

That's a very interesting link. First, I don't think the "tiny carbon spheres are perfectly smooth" as claimed. Most likely they have the faceted surface geometry like that of "buckey balls". And the way these tiny carbon spheres reduce friction in fluid film contacts is by filling in the small crevices in the mating surfaces so that a much thinner fluid film can be made to work without scuffing, which also results in much lower losses at the oil film interface.

The carbon "spheres" don't act like ball bearings. Instead they simply act like Bondo, and fill in the flaws in the surface, making it much smoother.

Nothing made of molecules is "perfectly smooth" however there is no reason to doubt a University publication that uses the term more than once, along with the term "ultra smooth". Even the term "perfectly smooth" could be taken to mean "as smooth as physically possible" given the finite number of carbon molecules in each sphere.

The spheres range from 700 to 3000 carbon atoms in diameter so they could theoretically be made spherical within 0.1% or better.

As to the possibility that "rolling" is contributing to the friction reduction, I would again defer to the researchers who say they intend to investigate further before that can be confirmed or denied.

How very interesting - thank you for posting.

This does indeed look like a useful line of research for the reduction of boundary friction, of which there is plenty in a reciprocating engine like in F1.

Also relevant to F1, I believe these carbon nanospheres also have potential for use in improving Li-Ion batteries?

A first evaluation of engines power in test configuration Made By Eng. Benzing http://www.formula1benzing.eu/index.html (it's in italian, the paragraph were talk about power is the last one, "il calcolo delle potenze")