Honda Power Unit Hardware & Software

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
Craigy
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Re: Honda Power Unit

Post by Craigy » Wed Dec 06, 2017 12:08 am

Brake Horse Power wrote:
Tue Dec 05, 2017 10:51 pm
Casted parts also to reduce vibrations?
By which means are you talking?

NL_Fer
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Re: Honda Power Unit

Post by NL_Fer » Wed Dec 06, 2017 12:31 am

At the moment Mercedes’ biggest gain is knowledge and finetuning it’s current spec. They already reached their sweet spot and can make gains from knowing how far they can push each part of the PU.

Mario Illien said in the latest interview, that the turbo/mgu-h has to be redesigned for every little change in combustion concept. Mercedes, has no changes, just finetuning.

Their Q3 magic comes from exactly knowing how far they can push for each lap.

Wazari
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Re: Honda Power Unit

Post by Wazari » Wed Dec 06, 2017 7:31 am

HPD wrote:
Tue Dec 05, 2017 10:51 am

Wazari, now that the season is over. Can you give us some figures about the difference in performance of the current 3.8 and 4.0 specifications?
Hasegawa always wanted to introduce the 4.0 in 2017, and "catch" Renault.
25 to 30 kW.
If you can make the opposition flinch, you have already won.

carisi2k
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Re: Honda Power Unit

Post by carisi2k » Wed Dec 06, 2017 7:55 am

How much more effective is the ers-h on the 4.0 vs 3.8?
How much more fuel efficient is 4.0 over 3.8?

Singabule
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Re: Honda Power Unit

Post by Singabule » Wed Dec 06, 2017 8:04 am

Wazari wrote:
Wed Dec 06, 2017 7:31 am
HPD wrote:
Tue Dec 05, 2017 10:51 am

Wazari, now that the season is over. Can you give us some figures about the difference in performance of the current 3.8 and 4.0 specifications?
Hasegawa always wanted to introduce the 4.0 in 2017, and "catch" Renault.
25 to 30 kW.
40 constant HP for race? Or on maximum qualy mode? Thats huge improvement =D>

godlameroso
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Re: Honda Power Unit

Post by godlameroso » Wed Dec 06, 2017 9:02 am

Sustained, and if true it slashes their current deficit by more than half. Honda needs to take an additional 20kw step after this to catch the leaders.
The height of cultivation is really nothing special. It is merely simplicity; the ability to express the utmost with the minimum. Mr.Lee

techman
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Re: Honda Power Unit

Post by techman » Wed Dec 06, 2017 10:11 am

Hi wazari, have you got an idea of the honda turbo size for 2018. mercedes turbo is the biggest , is honda going to introduce a bigger turbo relative to mercedes next season since they are running a similar layout design.

hurril
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Re: Honda Power Unit

Post by hurril » Wed Dec 06, 2017 10:37 am

techman wrote:
Wed Dec 06, 2017 10:11 am
Hi wazari, have you got an idea of the honda turbo size for 2018. mercedes turbo is the biggest , is honda going to introduce a bigger turbo relative to mercedes next season since they are running a similar layout design.
Do you know this?

Singabule
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Re: Honda Power Unit

Post by Singabule » Wed Dec 06, 2017 11:30 am

godlameroso wrote:
Wed Dec 06, 2017 9:02 am
Sustained, and if true it slashes their current deficit by more than half. Honda needs to take an additional 20kw step after this to catch the leaders.
20kw is about 0.5 sec on BCN, so if their packaging still the smallest, RBR may take honda engine happily. Very happy to hear that. I wonder how much difference spec 3.8 this year compared to spec 3.5 2016 engine. And Honda spec 2xx is really suck afterall, no wonder MCL want diforce

dren
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Re: Honda Power Unit

Post by dren » Wed Dec 06, 2017 1:16 pm

Wazari wrote:
Wed Dec 06, 2017 7:31 am
HPD wrote:
Tue Dec 05, 2017 10:51 am

Wazari, now that the season is over. Can you give us some figures about the difference in performance of the current 3.8 and 4.0 specifications?
Hasegawa always wanted to introduce the 4.0 in 2017, and "catch" Renault.
25 to 30 kW.
Sounds close to the bump Renault were said to have received when they changed their combustion concept a while back. Thanks.
Honda!

maguetox
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Re: Honda Power Unit

Post by maguetox » Wed Dec 06, 2017 3:08 pm

godlameroso wrote:
Wed Dec 06, 2017 9:02 am
Sustained, and if true it slashes their current deficit by more than half. Honda needs to take an additional 20kw step after this to catch the leaders.
Don´t forget that the other manufactures will find some gains on its new developments, so I think it would by fair to assume that Honda could cut by half their deficit, but like this is moving target, Honda will find some gains in other areas as well.

carisi2k
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Re: Honda Power Unit

Post by carisi2k » Wed Dec 06, 2017 9:00 pm

Is spec 4.0 the latest spec or has their been a newer spec released?

GhostF1
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Re: Honda Power Unit

Post by GhostF1 » Wed Dec 06, 2017 9:32 pm

carisi2k wrote:
Wed Dec 06, 2017 9:00 pm
Is spec 4.0 the latest spec or has their been a newer spec released?
Wazari implied there were further advanced stages when he said Spec 4.0 and Spec 4.xx.

One would assume that by testing the engine would of made even further progress.

gofast182
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Re: Honda Power Unit

Post by gofast182 » Wed Dec 06, 2017 10:29 pm

GhostF1 wrote:
Wed Dec 06, 2017 9:32 pm
carisi2k wrote:
Wed Dec 06, 2017 9:00 pm
Is spec 4.0 the latest spec or has their been a newer spec released?
Wazari implied there were further advanced stages when he said Spec 4.0 and Spec 4.xx.

One would assume that by testing the engine would of made even further progress.
According to Wazari, the Spec. 4 concept existed in some form at or before winter testing but it was not chosen due to a number of factors (weight, CoG among others) despite a supposed power advantage. Fast forward to the end of the season where Hasegawa said a Spec. 4 engine was ready to use but ultimately was not, presumably because of chassis modification and/or penalty considerations. We can then infer based on Wazari's use of Spec. 4.xx that, like any good development engineering team with a moving target, that they have not been sitting still with the new power unit even if it hasn't run on-track yet. This could be another contributing factor to Honda not to bringing Spec. 4 when it was ready: it may have shown McLaren something they were not privy to yet and Honda did not want them to see with Renault in the picture.

PlatinumZealot
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Re: Honda Power Unit

Post by PlatinumZealot » Thu Dec 07, 2017 12:08 am

techman wrote:
Wed Dec 06, 2017 10:11 am
Hi wazari, have you got an idea of the honda turbo size for 2018. mercedes turbo is the biggest , is honda going to introduce a bigger turbo relative to mercedes next season since they are running a similar layout design.
Look again. The Honda 2017 turbine is just about the same size as mercedes. Millimeters in it.
"The true champions are also great men. They are capable of making difficult decisions, of admitting their mistakes and of pushing harder than before when they get up from a fall."

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