Actual 2014 gearing from online videos

[mathbriere27]

Here is the Revmeter from Singapore
[youtube]http://www.youtube.com/watch?v=lugburee8Pk[/youtube]

[hollus]

Almost unreadable, unfortunately. Got that in higher resolution?
From a couple of datapoints, their new 8th looks very similar to their old 7th and their old 7th looks similar to their old 6th. But I'll wait for cleaner videos before recalculating the whole thing.

[mathbriere27]

Almost unreadable, unfortunately. Got that in higher resolution?

From me, that's the best I can do. RDS showed the pole lap on their studio screen, so that's the best quality available now. I'll seek for higher quality versions

Edit:// I'll try and recpature the lap with different settings. Gimme 30 minutes

[mathbriere27]

Should be better now
[youtube]http://www.youtube.com/watch?v=XP-evw2t4oQ[/youtube]

Hopefully that's good enough

[hollus]

The new gearing from Mercedes from Singapore on. Gray is old, color is new (1st missing). With these gears they are now geared similarly to, say, Williams or Red Bull.
The new 8th is shorter than the old 7th , with the difference being less dramatic for the new 7th and 6th.
The new 5th is essentially the old 5th, and then there are minor adjustments to 4th, 3rd and 2nd.
Ironically, these gear ratios would probably have managed Monza just fine.



The new overall picture:

The most different gear in the Mercedes is now 5th, and they kept the large spacing between 3rd, 4th and 5th.


Updated gear ratios:

Gear	Merc.	Will.	McLaren	F.India	T.Rosso	R.Bull	Lotus	Marus.	Ferrari	Sauber	Cater.
1	      	15.808		14.551	15.991	19.023		14.776		15.768	
2	12.149	11.238	14.706	11.562	12.429	13.508	13.612	11.871	11.279	12.197	13.800
3	9.712	9.600	12.044	9.519	9.305	9.913	10.173	9.533	9.333	9.411	10.016
4	7.535	8.021	9.291	7.904	7.713	7.825	8.006	7.713	7.795	7.751	7.885
5	6.280	6.635	7.481	6.293	6.486	6.460	6.725	6.667	6.660	6.761	6.561
6	5.559	5.702	5.984	5.122	5.471	5.524	5.704	5.811	5.792	5.882	5.548
7	4.990	4.953	4.953	4.396	4.723	4.886	5.039	5.149	5.076	5.214	4.967
8	4.398	4.401	4.387	3.926	4.281	4.418	4.350	4.603	4.488	4.667	4.484

[Juzh]

Funny how always when there's a merc onboard I still expect those ultra long gear winding ^^

[Tornado220]

It just tells you many small things.

Williams, McLaren and Red Bull are not counting on going over 350Km/h any time soon, because they can only do that in 8th by running well over 12000 RPM, and I haven't seen anybody happy to stay over 12000 for more than a split second, except Force India, which goes to 13000 in 4th and 5th gear. Force India chose very spaced middle gears, so they have to, and they'll have to for a few races. This also tells you that the Mercedes engine can routinely take 13000, but likely they are taking a hit in cooling or in efficiency to do that, and we'll see if in reliability also.

Williams with its impossibly compressed gears, shifts at the lowest revs, and in general if they choose to (and they seem to do so), they can run all the time between 10000 and 11500 RPM, as low as possible while using (almost) the full fuel allocation. Maybe this is also the reason for their bulletproof reliability. But they might be compromised out of Loews and in starts and pit stops, because 1st gear (which I haven't included yet) is left to deal with everything under 90Km/h all by itself. This 1st gear problem might also apply to Mercedes.

Hi Hollus,

In your post above you mention that 90Km/h in first gear is a problem, "This 1st gear problem might also apply to Mercedes" can you please explain what the problem would be ?

Also sorry not getting at you, but could you turn your charts through 90 degrees, ie the variable for the Y axis and the incremental along the horizontal X axis as this would also coincide with the Dyno charts which when converted to in-gear speeds/BHP/Torque curves could show the excess of power per gear, ie power/torque for acceleration.

Thanks

[hollus]

90Km/h in first gear is a problem

It just meant that you will depend 100% of clutch slip until you go over the speed equivalent to your idle RPM, and them by RPM until you shift to 2nd, which you will do near 90 km/h.
It is a lot of km/h where you have to be careful not to bog the engine down, to have the right slip and to control by throttle feathering, before you have the option to shift to 2nd.

Maybe it is not so much of a problem.

could you turn your charts through 90 degrees

hmmm, MS-Paint?

[gruntguru]

I calculated the rpm drop of each upshift eg 2nd - 3rd for Merc is 0.20 = 20% rpm drop. Also the average for all shifts from 2-3 to 7-8 for each team. The most interesting thing is teams with staggered gaps (not just the expected trend of smaller gaps in higher gears). Presumably this was done to get the "perfect" ratio for particular corner exits at multiple tracks.

[johnny comelately]

I calculated the rpm drop of each upshift eg 2nd - 3rd for Merc is 0.20 = 20% rpm drop. Also the average for all shifts from 2-3 to 7-8 for each team. The most interesting thing is teams with staggered gaps (not just the expected trend of smaller gaps in higher gears). Presumably this was done to get the "perfect" ratio for particular corner exits at multiple tracks.

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

exposing my dunderheadedness, am i interpreting this right : 2000rpm drop ??

[gruntguru]

Yep - 0.20 in the "Gap" column means the revs drop 20%. If the engine is doing 10,00 before the shift it drops to 8,000 after, 15,000 -> 12,000 etc

[Tornado220]

90Km/h in first gear is a problem

It just meant that you will depend 100% of clutch slip until you go over the speed equivalent to your idle RPM, and them by RPM until you shift to 2nd, which you will do near 90 km/h.
It is a lot of km/h where you have to be careful not to bog the engine down, to have the right slip and to control by throttle feathering, before you have the option to shift to 2nd.

Maybe it is not so much of a problem.

could you turn your charts through 90 degrees

hmmm, MS-Paint?

Or you could rely on launch control to do it's job ? I don't know a lot about F1 but I assume they have some form of launch control ? but even if they don't, I have found that its much easier to control 2 things out of 3, ie wheel spin, throttle position or clutch slip, with too low a gear ratio and the torque of one of these engines then surely the wheel spin would be so much that all you do is stand still and burn rubber, with a higher gear ratio 1st gear the focus is on controlling the throttle position and then the wheel spin looks after itself but you do get acceleration, just my observations in my own car, which weighs about 500kg, has 450bhp/tonne and 62 mph at 7800 in 1st gear, with a HD clutch and cerametallic plate, the ceramic plate would normally act as a switch but as you increase the 1st gear ratio it lessons this phenomena and very quickly soon after launching the clutch is fully engaged with a chirp of wheel spin of course in the wet it's a little harder to drive.

MS- Paint lol no it completely changes the graphs dynamics every speed/gear etc chart I have ever seen is the other way around which just makes it easier to understand and easier to work with other vehicle dynamics

[gruntguru]

I don't see 90 km/hr in first gear as a problem - especially if that represents 15,000 rpm. In that case you could slip the clutch at 5,000 rpm (I am sure these cars are traction limited at 5,000 rpm in 1st) and by the time the car is at 30 km/hr (about 0.5 sec and 2 meters after the start) the clutch could fully engaged.