2025/2026 Hybrid Powerunit speculation

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
User avatar
BassVirolla
12
Joined: 20 Jul 2018, 23:55

Re: 2025/2026 Hybrid Powerunit speculation

Post

... And sounds like a very, very close ratio gearbox. We are set for a long first gear with the MGUK being a great actor at the launchs? :-k

Nearly always in best efficiency revs...

User avatar
Holm86
255
Joined: 10 Feb 2010, 03:37
Location: Copenhagen, Denmark

Re: 2025/2026 Hybrid Powerunit speculation

Post

BassVirolla wrote:
12 Dec 2025, 17:51
... And sounds like a very, very close ratio gearbox. We are set for a long first gear with the MGUK being a great actor at the launchs? :-k

Nearly always in best efficiency revs...
I'm sure it's on an engine Dyno, and not fittet to a real race gearbox

User avatar
BassVirolla
12
Joined: 20 Jul 2018, 23:55

Re: 2025/2026 Hybrid Powerunit speculation

Post

Holm86 wrote:
12 Dec 2025, 18:39
BassVirolla wrote:
12 Dec 2025, 17:51
... And sounds like a very, very close ratio gearbox. We are set for a long first gear with the MGUK being a great actor at the launchs? :-k

Nearly always in best efficiency revs...
I'm sure it's on an engine Dyno, and not fittet to a real race gearbox
I don't doubt it, but it's usual to do race sims in dynos, so imitating the real gear ratios.

User avatar
Holm86
255
Joined: 10 Feb 2010, 03:37
Location: Copenhagen, Denmark

Re: 2025/2026 Hybrid Powerunit speculation

Post

BassVirolla wrote:
12 Dec 2025, 19:21
Holm86 wrote:
12 Dec 2025, 18:39
BassVirolla wrote:
12 Dec 2025, 17:51
... And sounds like a very, very close ratio gearbox. We are set for a long first gear with the MGUK being a great actor at the launchs? :-k

Nearly always in best efficiency revs...
I'm sure it's on an engine Dyno, and not fittet to a real race gearbox
I don't doubt it, but it's usual to do race sims in dynos, so imitating the real gear ratios.
I only hear 7 gears

Vappy
Vappy
0
Joined: 14 Mar 2024, 20:09

Re: 2025/2026 Hybrid Powerunit speculation

Post

Certainly doesn't seem to rev all that high in that footage. In comparison, mercedes' F1 dyno run. I couldn't find a honda equivalent to the current engines in a dyno environment, so not a like for like.



EDIT: Comparing it to some off-board shots of the Racing Bulls of 2025, it sounds a bit less muffled and more throaty. A missing MGU-H might be the result of that?

hsg
hsg
0
Joined: 18 Sep 2024, 08:49

Re: 2025/2026 Hybrid Powerunit speculation

Post

Is that is case, late brake drivers will loose their performances?