Honda Power Unit Hardware & Software

[sirexilon]

Honda did said that AUS spec will have much more power.

Honda said so many things in 2015 and 2016, that never came true, so, my patience and trust in Honda F1 capabilities had drop to zero. See to believe.

[McMrocks]

F1AT repeted recently that Honda's new engine according to their sources is still highly unreliable and underpowered. I think they are right once again.
As many other already said I can't believe Honda is unable to design an oil tank. There's no excuse, it's pure incompetence.

Inviato dal mio Redmi Note 3 utilizzando Tapatalk

Honda did said that AUS spec will have much more power.

Given that their dynos are not fully able to simulate the forces in an F1 car, it would be a good idea to test the Melbourne Spec at the test. They should try that at least for the second test

[Joseki]

F1AT repeted recently that Honda's new engine according to their sources is still highly unreliable and underpowered. I think they are right once again.
As many other already said I can't believe Honda is unable to design an oil tank. There's no excuse, it's pure incompetence.

Inviato dal mio Redmi Note 3 utilizzando Tapatalk

Honda did said that AUS spec will have much more power.

I really hope so and I hope to see McLaren lapping regularly tomorrow. I'd love to be surprised but if the last two days are anything to go by I'm not optimistic for the future.
I'll wait Q3 in Melbourne.

Inviato dal mio Redmi Note 3 utilizzando Tapatalk

[makecry]

F1AT repeted recently that Honda's new engine according to their sources is still highly unreliable and underpowered. I think they are right once again.
As many other already said I can't believe Honda is unable to design an oil tank. There's no excuse, it's pure incompetence.

Inviato dal mio Redmi Note 3 utilizzando Tapatalk

Honda did said that AUS spec will have much more power.

I think we should be smart enough to take everything Honda says with a grain of salt. This is same old from them.

[GoranF1]

107 laps tommorow whit 0 problems.

[namao]

Honda noticed the PU problem on the filming day and tried to fix it at night. They wasn't able to fix it with a "patch".

The oil tank problem is systemic and based on a bad design so the solution seems pretty difficult for them because it needs a redesign. And a redesign of a single element takes several hours and days.

Now the question: is how will Honda solve the oil tank issue? Before Australia seems really difficult.

[Adam_Birem]

Those circumstances (G forces) simply can't be simulated, not even on the best dyno. But they can be predicted. Although it's possible they are trying something new...

I wonder to what extent this is true. For impulse forces I can agree, although I do not know to what level. But I have the impression the oil tank is not functioning correctly due to cornering forces, those should be simulatable at the dyno.

You can beleive it is true. Although I can't say what percent is simulable, cornering G forces are not (yet) simulable. Ex. if you want to simulate 4G trough a corner for let's say 5 seconds, you need to accelerate the whole car with 4G for 5 seconds. You would need a dyno size of a football field if not bigger. Chassis tensions as well as curbs and vibrations can be simulated perfectly, but not full G forces, and the fluids simulations are a pain in the arse.

G force is easily simulated with a centrifuge no? No need to accelerate the engine in a straight line...

[hurril]

I wonder to what extent this is true. For impulse forces I can agree, although I do not know to what level. But I have the impression the oil tank is not functioning correctly due to cornering forces, those should be simulatable at the dyno.

You can beleive it is true. Although I can't say what percent is simulable, cornering G forces are not (yet) simulable. Ex. if you want to simulate 4G trough a corner for let's say 5 seconds, you need to accelerate the whole car with 4G for 5 seconds. You would need a dyno size of a football field if not bigger. Chassis tensions as well as curbs and vibrations can be simulated perfectly, but not full G forces, and the fluids simulations are a pain in the arse.

G force is easily simulated with a centrifuge no? No need to accelerate the engine in a straight line...

Is there such a thing? Have you ever heard of one?

[swifteddie1]

Wazari - if you are still out there would love to get your thoughts on the first two days of testing.

[makecry]

Wazari - if you are still out there would love to get your thoughts on the first two days of testing.

I dont think he is gonna respond for some time.

[drunkf1fan]

107 laps tommorow whit 0 problems.

So, whose engine do you think they'll sneak in and swap theirs out for tomorrow? I guess we'll know when one of the other teams has 'their' engine go after 29 laps.

[Brian Coat]

The validation of the oil tank by CAE and rig test is well established, I believe.

Honda has screwed up at the design stage (it happens) and their programme was running too late to catch it.

[Thunder]

muramasa posted a tranlated Interview with Hasegawa on the Autosport Forums:

Hasegawa post session quote from Monday (dotted parts)
http://f1sokuho.mopi...=106447&tt=1170
2017年2月28日

-Shape of oil tank, or specifically speaking the baffles inside the tank, its (the baffle's) arrangement turned out to be inappropriate so that it cannot take in oil properly when under G-force during running. Therefore caused oil pressure drop.

They noticed the issue in filming day running on Sunday already. Applied fix that's possible in impromptu style at venue but wasnt enough due to time restraint, so they were prepared for encountering trouble to a degree. (info in the article)

-It's not a serious issue. However it's located in a place difficult to reach, so you have to detach engine from car in order to repair. It was a combination of new PU plus new car, so normally it only takes 2 hours to exchange the unit, but it ended up taking much longer.

[gruntguru]

Those circumstances (G forces) simply can't be simulated, not even on the best dyno. But they can be predicted. Although it's possible they are trying something new...

Simulating the direction of the apparent gravity is much more important to oil tank design than the magnitude of the apparent gravity. The direction can be readily simulated using current tilting-dyno technology. Not sure if Honda has one of those but I would have thought so.

[gruntguru]

EDIT: Seems like Porsche ran into same problems. Engine Oil Sump Test Rig:
https://www.youtube.com/watch?v=fv53RbvgfGc

With such system you are limited to 1g acceleration. Probably F1 cars reach that while pulling into the pits.

If you need the direction and the magnitude of the resultant force, you can't even achieve 1G acceleration on this rig. OTOH the "direction" of a 1G acceleration is only 45* to the vertical and a rig like this can simulate the "direction" of any lateral G force you care to name as long as it can tilt from 0* - 90* from the usual position.