Honda Power Unit Hardware & Software

[isullivan]

Every other team, apart from RB and AT used a new PU (ICE+TURBO+MGU-H/K) for the Baku GP, yet Honda didn't change anything, granted Yuki is already on his second PU, and yet all of them performed so well on the track. Is this duo to a different PU deployment strategy, maybe they are waiting for France or Austria to introduce a fresh PU ? Can we expect some performance gains duo to "reliability updates" ?

[saviour stivala]

The wastegate itself relieves the pressure in the exhaust manifold, so that there is a lower pressure difference pre and post turbine. However the wastegate can't eliminate the heat caused by the combustion process. The turbine actually absorbs some of that heat energy which causes a pressure difference in the exhaust manifold vs post turbine.

I meant at the exhaust outlets. Can the teams influence the aero to allow a sufficient low pressure area in the area of the exhaust tips to promote better exhaust flow.

Really nothing can be done post turbine, the turbine itself is the biggest exhaust obstacle. It's like putting a potato in your tail pipe, or maybe waffle fries.

''Really nothing can be done post turbine'' Again Agree. As both turbine and waste-gates exhaust tail pipes must conform to regulations. ''The turbine is the biggest obstacle'' Again agree. As the turbine is not a 'blow-down' type of turbine (the system used). A blow-down turbine system will have no need for a waste-gate. The turbocharging system as used by F1 + the inclusion of the MGU-H can actually do without a waste-gate, but without a waste-gate the system could not be used in 'free load mode' electrical supercharging mode. with the result of maximum power output possible not being able to be extracted from the ICE.

[epo]

Every other team, apart from RB and AT used a new PU (ICE+TURBO+MGU-H/K) for the Baku GP, yet Honda didn't change anything, granted Yuki is already on his second PU, and yet all of them performed so well on the track. Is this duo to a different PU deployment strategy, maybe they are waiting for France or Austria to introduce a fresh PU ? Can we expect some performance gains duo to "reliability updates" ?

Improved reliability which most likely gives more performance :

https://www.auto-motor-und-sport.de/for ... se-rennen/

[NL_Fer]

There are suspicions that the powerunit was tuned down a little in Imola and Spain

[Wouter]

Every other team, apart from RB and AT used a new PU (ICE+TURBO+MGU-H/K) for the Baku GP, yet Honda didn't change anything, granted Yuki is already on his second PU, and yet all of them performed so well on the track. Is this duo to a different PU deployment strategy, maybe they are waiting for France or Austria to introduce a fresh PU ? Can we expect some performance gains duo to "reliability updates" ?

Improved reliability which most likely gives more performance :

https://www.auto-motor-und-sport.de/for ... se-rennen/

The following could be read on AMuS last Friday after the 2nd FP, which was not true at all.
The question is therefore whether this information about France this time is correct.

https://www.auto-motor-und-sport.de/for ... un-zeiten/

The Honda teams still had the old engines in the car on the first day of training, while Mercedes and Ferrari had already switched to the second engines.
It was heard from the team! that Honda will also switch to new drive units on Saturday.

[Pyrone89]

Any definitive word on what this supposed French GP PU update is going to fix exactly, only heard rumors so far.

[Cassius]

Every other team, apart from RB and AT used a new PU (ICE+TURBO+MGU-H/K) for the Baku GP, yet Honda didn't change anything, granted Yuki is already on his second PU, and yet all of them performed so well on the track. Is this duo to a different PU deployment strategy, maybe they are waiting for France or Austria to introduce a fresh PU ? Can we expect some performance gains duo to "reliability updates" ?

Improved reliability which most likely gives more performance :

https://www.auto-motor-und-sport.de/for ... se-rennen/

The following could be read on AMuS last Friday after the 2nd FP, which was not true at all.
The question is therefore whether this information about France this time is correct.

https://www.auto-motor-und-sport.de/for ... un-zeiten/

The Honda teams still had the old engines in the car on the first day of training, while Mercedes and Ferrari had already switched to the second engines.
It was heard from the team! that Honda will also switch to new drive units on Saturday.

It can still be a reliable source but RB/Honda decided against using the 2nd engine. Maybe because they felt they didn't need it yet, because they were so strong on Friday. With rose-tinted glasses you could say this points into the direction that the rumor stated on this forum may be true that the 2nd engine has overcome some reliability issues and can therefore be run a bit harder.

[Chuckjr]

Is the update coming to France an update to improve reliability so the current spec can be turned up to full tilt boogie, or did they find more power in the new spec and it can run full tilt boogie out of the box?

[Pyrone89]

Is the update coming to France an update to improve reliability so the current spec can be turned up to full tilt boogie, or did they find more power in the new spec and it can run full tilt boogie out of the box?

No in-season development allowed, only reliability fixes

[Steven]

Is the update coming to France an update to improve reliability so the current spec can be turned up to full tilt boogie, or did they find more power in the new spec and it can run full tilt boogie out of the box?

No in-season development allowed, only reliability fixes

The engine freeze only kicks in at the start of 2022. A new engine this year can still feature performance upgrades.

[dans79]

The engine freeze only kicks in at the start of 2022. A new engine this year can still feature performance upgrades.

They are only allowed 1 update per the technical regulations.
https://www.fia.com/sites/default/files ... -03-05.pdf

[Pyrone89]

The engine freeze only kicks in at the start of 2022. A new engine this year can still feature performance upgrades.

They are only allowed 1 update per the technical regulations.
https://www.fia.com/sites/default/files ... -03-05.pdf
https://i.ibb.co/s2tGgS6/grab.jpg

Huh, I thought we had a complete freeze starting in 2022 (allowing the RB - Honda deal)? This FIA document says something different.

[Pyrone89]

Is the update coming to France an update to improve reliability so the current spec can be turned up to full tilt boogie, or did they find more power in the new spec and it can run full tilt boogie out of the box?

No in-season development allowed, only reliability fixes

The engine freeze only kicks in at the start of 2022. A new engine this year can still feature performance upgrades.

As far as I know, that was blocked in the regulation change last year.
Remember, Honda couldn't use their second 2020 performance spec.

[Steven]

No in-season development allowed, only reliability fixes

The engine freeze only kicks in at the start of 2022. A new engine this year can still feature performance upgrades.

As far as I know, that was blocked in the regulation change last year.
Remember, Honda couldn't use their second 2020 performance spec.

Indeed, I must've had a memory lapse when I posted that. Sorry

[dans79]

The engine freeze only kicks in at the start of 2022. A new engine this year can still feature performance upgrades.

They are only allowed 1 update per the technical regulations.
https://www.fia.com/sites/default/files ... -03-05.pdf
https://i.ibb.co/s2tGgS6/grab.jpg

Huh, I thought we had a complete freeze starting in 2022 (allowing the RB - Honda deal)? This FIA document says something different.

Yea, and it's not even clear what the 1 that spans 2 seasons means!