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The new gearing in the Mercedes from Singapore on. Their new 8th is shorter than their old 7th. 1st is missing from the new set.
Their gears are not that different anymore from, say, Williams or Red Bull.
And the new overall picture:
Update after Monza.
4 teams have used their gear ratio change jokers so far:
Toro Rosso changed only their 1st gear (and I never got to see the old one to compare).
McLaren changed them all a race before Spa in a rather dramatic way: they left 8th untouched and then adapted the rest so that their new 4th matches their old 3rd. As a result, their gearing is now radically different to everyone else’s. (Old gears in gray, the new 1st gears still missing)
Red Bull changed 1st, 2nd, 7th and 8th to make them slightly longer in time for Spa. (Old in gray, new in colors)
And Ferrari changed 8th gear in both cars to a bit less than 3% longer in time for Monza, apparently leaving the other gear ratios unchanged.This is the current gearing picture:
Data for Caterham corrected after Iestyn gave me more reliable values for dry tires:
And the ratios are corrected too:
Thanks a lot, Iestyn.
You’ve given me round numbers, but I assume that when you chose speeds ending in 0, you simply chose the appropriate video frames, and that the first 3 digits of the RPM are also unchanged, right? In that case the speeds should be precise to about 0.5% and the RPM to about 1%.
If that’s the case, I seem to indeed have made a mistake, and Caterham’s speeds in inters are about 3% higher than in dry tires (for the same RPM), which fits with wet tires having 670mm in diameter while dry tires are only 660mm in diameter.
I might revise the graph for Caterham, then…Hi Iestyn,
If yo can give me a single RPM – Km/h pair for each gear (or whichever are easy to get) I can check if my conversion from intermediates to dry tires was done correctly. Just pause the video in moments under acceleration and away from gear shifts, and post the values here.
Thanks a lot.
The Rumor of Ferrari using the gear ratio change keeps coming up in every race apparently. No they didn’t. Their China onboards match this graph (created with videos from Sepang) perfectly:
By the way, the gear ratios were meant to be read with a monoscpaced font. I don’t know how to edit the post, but of course there are (there were meant to be) gaps in 1st and 8th, matching the graph.
