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.
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ispano6
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Re: Honda Power Unit Hardware & Software

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You guys prove that you don't make the effort to find the information. You expect it to be presented to you.

Try harder.

And if you feel that there isn't much, then you should be able to deduce that what you're reading elsewhere is probably fluff.

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bigblue
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Joined: 01 Oct 2014, 12:18

Re: Honda Power Unit Hardware & Software

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I was just posting a link to the official HRC site, not doing a review of reputable sites vs non-reputable and Japanese vs non-Japanese websites!

I think it's pretty weird that HRC have multiple sites, btw. While I'm looking at "team" sites, I guess these are relevant too, of course. The post about the "I'm guessing, 30% of their original base staff" was actually meant to point out how careful you have to be reading things on the web even from apparently dependable sites.

Cheer up ispano6, there were some tentative steps of improvement for the race, hopefully more to come in a couple of races time.

Sasha
Sasha
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Joined: 07 Jul 2013, 07:43

Re: Honda Power Unit Hardware & Software

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It is mostly a problem of the Chassis side of the team being late with the design.
Almost not ready for testing!!!
Original plan was to run at AVL in Austria before testing!!!
Newey is known to get side tracked by keep changing the design to the last moment!!!
But what I saw this weekend is scaring the other teams because it's going to be fast when the fully understand everything.

mzso
mzso
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Joined: 05 Apr 2014, 14:52

Re: Honda Power Unit Hardware & Software

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ispano6 wrote:
08 Mar 2026, 18:53
You guys prove that you don't make the effort to find the information. You expect it to be presented to you.

Try harder.

And if you feel that there isn't much, then you should be able to deduce that what you're reading elsewhere is probably fluff.
Why bother writing just to be obnoxious? You could have just linked which site you think is reliable and with good info.
bigblue wrote:
08 Mar 2026, 19:49
I think it's pretty weird that HRC have multiple sites, btw. While I'm looking at "team" sites, I guess these are relevant too, of course.
And all of them have little to no relevant information.
Last edited by mzso on 09 Mar 2026, 00:54, edited 2 times in total.

mzso
mzso
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Re: Honda Power Unit Hardware & Software

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Sasha wrote:
08 Mar 2026, 22:23
It is mostly a problem of the Chassis side of the team being late with the design.
Almost not ready for testing!!!
Original plan was to run at AVL in Austria before testing!!!
Newey is known to get side tracked by keep changing the design to the last moment!!!
But what I saw this weekend is scaring the other teams because it's going to be fast when the fully understand everything.
Really? How does the chassis cause the vibrations?
At most it caused a delayed realization of the flaw. But the flaw (whatever it is) was already there.

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bigblue
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Re: Honda Power Unit Hardware & Software

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mzso wrote:
08 Mar 2026, 23:06
And all of them have little to no relevant information.
Because the important info came out in interviews / press conferences rather than press releases (which is more the style of the team websites), but then you're at the whim of the reporting which sometimes misses the nuances, to the point where what's fact, an informed guss and complete conjecture, is hard to disentangle. Hence if you're really interested you try to look at a whole bunch of sites, take into account their reliability, and skim the forums as well to see what else other people have found (sometimes someone kind who speaks Japanese will translate directly, instead of relying on machine translation, yes ispano6 does this sometimes if there's something particularly worth mentioning).

Anyway, maybe ispano6 could name the main few Japanese f1 sites, and how reliable they are in their opinion? That would be interesting. Probably about as reliable as the non-Japanese ones, but maybe they get the odd bit of info or quotes that aren't seen elsewhere, just wondering.

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diffuser
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Joined: 07 Sep 2012, 13:55
Location: Montreal

Re: Honda Power Unit Hardware & Software

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mzso wrote:
08 Mar 2026, 23:08
Sasha wrote:
08 Mar 2026, 22:23
It is mostly a problem of the Chassis side of the team being late with the design.
Almost not ready for testing!!!
Original plan was to run at AVL in Austria before testing!!!
Newey is known to get side tracked by keep changing the design to the last moment!!!
But what I saw this weekend is scaring the other teams because it's going to be fast when the fully understand everything.
Really? How does the chassis cause the vibrations?
At most it caused a delayed realization of the flaw. But the flaw (whatever it is) was already there.
I think what he's misrepresenting is the problem isn't any part of what is homologated. I read they tried different bearings in the MGU-K. They might be trying different ways to dampen the connection on the ICE to the chassis.There is room for a problem with the chassis as AMF1 ran out of time to put their chassis on VTT, while Honda did put their ICE. That being said, chassis don't vibrate, they dampen the road vibrations. There is nothing in the chassis that would vibrate on it's own.

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ispano6
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Location: my playseat

Re: Honda Power Unit Hardware & Software

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bigblue wrote:
08 Mar 2026, 23:50

Because the important info came out in interviews / press conferences rather than press releases (which is more the style of the team websites), but then you're at the whim of the reporting which sometimes misses the nuances, to the point where what's fact, an informed guss and complete conjecture, is hard to disentangle. Hence if you're really interested you try to look at a whole bunch of sites, take into account their reliability, and skim the forums as well to see what else other people have found (sometimes someone kind who speaks Japanese will translate directly, instead of relying on machine translation, yes ispano6 does this sometimes if there's something particularly worth mentioning).

Anyway, maybe ispano6 could name the main few Japanese f1 sites, and how reliable they are in their opinion? That would be interesting. Probably about as reliable as the non-Japanese ones, but maybe they get the odd bit of info or quotes that aren't seen elsewhere, just wondering.
I stopped translating for this forum for several reasons. It took a nose-dive in terms of the quality of the technical talk and became a place for cry babies. Even if I did provide the sites, they would be mistranslated and misinterpretted by the same perpetrators. The fact is, these people jump to conclusions and treat fact from heresay and secondary/tertiary sources. You know the quality of the poster when they accuse Honda of not knowing what they are doing. Why are we allowing such talk on this technical forum?

erikejw
erikejw
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Re: Honda Power Unit Hardware & Software

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AR3-GP wrote:
06 Mar 2026, 16:32
bigblue wrote:
06 Mar 2026, 16:02
Fuel acts as a damper to the battery, so Honda have limited us very much to how much low fuel running we can do.
(Newey quote from motorsport.com, probably available at lots of other sites too).

This is interesting / weird, at least to me, in that the vibrations are sensitive to the fuel load (and in that case probably also the installation / chassis). I imagined the overiding factor was "just" a rough engine or some engine / MGU-K resonance.
The heavier the object is, the harder it is to shake. So the extra fuel weight reduces the vibration amplitude.
It also changes the resonance frequency's which most likely is the major problem.

hasika
hasika
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Joined: 30 Nov 2017, 04:12

Re: Honda Power Unit Hardware & Software

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https://www.as-web.jp/f1/1296569
https://www.as-web.jp/f1/1296653
HRC boss Koji Watanabe's interview after race,here is the main point.
1.The vibration was significantly reduced during Aus GP than Bahrain test.Lance said he felt the vibration level was almost half(of how he felt during Bahrain test)
2.The target is solving the vibration problem in Japan GP.
3.No PU issues in the race.Our part of race plan was doing some test because we didnt do much laps(in Bahrain test),the other reason was the team's strategy‌(to retire the car).
4.The PU was still runing with some limition.When the vibration problem is completely‌ solved,the PU will be operating at its full capacity, then we can check the real performance of the PU and we will know which era we should improve.

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AR3-GP
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Re: Honda Power Unit Hardware & Software

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Beware of T-Rex

Tommy Cookers
Tommy Cookers
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Joined: 17 Feb 2012, 16:55

Re: Honda Power Unit Hardware & Software

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in the section 'Aerodynamics, chassis and tyres there is ....

a thread started on April 4th 2017 titled 'current Formula 1 structural safety factors'

it is largely about structural 'dynamic overshoot'

(so it shows that some recent posts by our friend mzso are 'mistaken')
Last edited by Tommy Cookers on 10 Mar 2026, 21:50, edited 1 time in total.

wiktor977
wiktor977
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Joined: 27 Jan 2024, 17:33

Re: Honda Power Unit Hardware & Software

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Here are some low-quality pictures of the battery (part of it) from Australia. Battery is of course looking different than the one we saw at the Honda event.

Mounting points are different, and there are some kind of rubber bushings used to reduce vibrations, hard to tell if those were added after the Bahrain test. Are those cooling pipe connectors at the front?
Image
Image

Side view, I don't know how you call this plate under the battery but there is a noticeable cut out in it, almost like a place for MGU-K

Image
Image

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Wouter
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Joined: 16 Dec 2017, 13:02

Re: Honda Power Unit Hardware & Software

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Sasha wrote:
08 Mar 2026, 22:23
It is mostly a problem of the Chassis side of the team being late with the design.
Almost not ready for testing!!!

Original plan was to run at AVL in Austria before testing!!!

But what I saw this weekend is scaring the other teams because it's going to be fast when the fully understand everything.
.
Where did all this information come from?

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Rasoose
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Joined: 31 Jan 2026, 05:52

Re: Honda Power Unit Hardware & Software

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ispano6 wrote:
09 Mar 2026, 03:09
I stopped translating for this forum for several reasons. It took a nose-dive in terms of the quality of the technical talk and became a place for cry babies. Even if I did provide the sites, they would be mistranslated and misinterpretted by the same perpetrators. The fact is, these people jump to conclusions and treat fact from heresay and secondary/tertiary sources. You know the quality of the poster when they accuse Honda of not knowing what they are doing. Why are we allowing such talk on this technical forum?
Couldn't agree more, I've been regularly reading these forums for years and it's a shame to see such low-effort, inaccurate and/or baseless posts make their way over here.

People with no personal accomplishments and/or a lack of fulfillment in their personal lives, jumping at the chance to criticize or make fun of hard-working, talented engineers, etc. ('Renault sucks', 'GP2 engine', 'Ferrari tractor', etc.) can range from sad to funny, but it adds nothing of value and has no place on a forum like this in my opinion.

To ispano6 and the many others who make positive contributions on this forum, thank you for what you've provided in the past and for what you continue to try and do.