Honda Power Unit Hardware & Software

[Craigy]

Well now to be sure TC, if Craigy was goin' on the 'craic' & it was 'Oirish java' he was havin'..

Coincidentally, and hilariously, I was in Dublin when you wrote that, although I'm sure that's not the Irish coffee you're talking about. I'm back in the UK now, in MK.

I remember quite a few years ago, Hakkinen crashed his McLaren at Monza (or somewhere else fast - it was a long time ago, I can't remember exactly - MP4/13 or 14 I think), and the car had a sidepod heavily damaged.
The car was leaking neon green fluid from the left radiator, which McLaren later explained was glycol-based coolant.
I think in the intervening years, most or all the cars swapped over to more or less pure water; but I'm now wondering what coolant the cars are using this year, if the coolant isn't only coolant.

Ignoring the practicalities, what else is there that could end up in the combustion chamber?
Air (obviously), Fuel (obviously), Oil (possibly), Coolant (possibly). Hydraulic fluid? (possibly).

Is there anything else?
The (nitrogen) air spring system for the valvetrain doesn't help with anything, so I'm ignoring that. Are there other fluids I've not considered?

[FW17]

Last year the radiator fluid was golden

[shady]

So we still have 'reliability upgrades' right, with the other teams ability to veto (Mutually Assured Destruction if they do of course..) without dipping into the 4 PU supply. FIA will let you essentially rebuild the engine with new parts if they are for reliability which should be easy enough for Honda to prove. They need to be working and aiming FAR higher than anyone else could imagine.. shoot for 60% efficiency by years end.. just put it out there already stop trying to catch up and put a marker out there for others to look at.

[PhillipM]

Reliability upgrades were a bypass to the token system, they don't bypass your parts allocation.

[Jef Patat]

Isn't that what they have claimed to be doing for the past years?

[Craigy]

Last year the radiator fluid was golden

Which engine? Honda?

[godlameroso]

Yeah you can see the coolant spray out of the radiators during Alonso's big Melbourne crash last year.

[etusch]

They says that coming update for the race Which teams shift Second PU. I don't know if Honda engine will survive for 4 races.
Also I wonder what will do for chinnes gp

[ENGINE TUNER]

My municipality says as long as it's not full of rust, or dex-cool, to just dig a hole of at least 3ft in dirt and dump my used coolant there. Soil bacteria just treat the organic compounds as food. Used motor oil, no way that goes to the Auto Zone.

You, live in south florida? Please, pleas don't do that, just take it to recycling centers they are all over.

[Singabule]

Last year the radiator fluid was golden

Which engine? Honda?

Yeah. See alonso crash Last year.

[harjan]

On a track like Melbourne how much would 10 bhp bring in laptime? (Not taking into consideration ability to run more df)

On this video: the amount of lift and coast he has to do is unbelievable..

Let's compare this lap:

Top speed 1 : 302 vs 319 - Alonso does massive lift & coast
T1(r/l): apex 150 (Alo)vs 136(Oco), exit 249 vs 246
Top speed 2: 293 vs 295
T2(r): apex 91 vs 84, exit 135 vs 123
T3(l): apex 140 vs 143, exit 195 vs 158 (probably inaccurate measurement)
T4(r): apex 229 vs 221, exit 248 vs 245
Top speed: 270 vs 274
T5(r) apex 138 vs 130, exit 188 vs 175
Top speed 271 vs 283
T6(r) apex 115 vs 106, exit 230 vs 230
Top speed 279 vs 295
T7 (l/r) apex 214 vs 218, 249 exit vs 242
Top speed 287 vs 294
T8(r) apex 138 vs 127, exit 191 vs 188
T9(r) apex 180 vs 191, exit 221 vs 225
T10(l) apex 83 vs 78, exit 131 vs 119
T11(r) apex 179 vs 170, exit 232 vs 221

Findings;
- McLaren is quite a lot slower on the straight, partly due to lift & coast- and also the lack of ERS on the back straight.
- McLaren is far quicker through most corners. Only through the 2 really quick corners the FI seems quicker, but that could also be lower DF and Alo sacrificing entry for exit speed.

[etusch]

This is great. Do you make it mclaren vs ferrari or merc

[shady]

Reliability upgrades were a bypass to the token system, they don't bypass your parts allocation.

Youre misunderstanding slightly. If i upgrade my piston crown or head (to improve CVCC, and manage these 'vibrations') its still the same ICE, so it wouldnt count against my component allocation, but would get; in Hondas case, a 'reliability' upgrade. In the recent past it 'was' a bypass, but predates the current engine spec anyway, sort of an open loophole. The problem stems from the fact that the changing anything in these PUs has knock-on affects downstream, so feasibility then becomes the issue, using this path.

[ENGINE TUNER]

Reliability upgrades were a bypass to the token system, they don't bypass your parts allocation.

Youre misunderstanding slightly. If i upgrade my piston crown or head (to improve CVCC, and manage these 'vibrations') its still the same ICE, so it wouldnt count against my component allocation, but would get; in Hondas case, a 'reliability' upgrade. In the recent past it 'was' a bypass, but predates the current engine spec anyway, sort of an open loophole. The problem stems from the fact that the changing anything in these PUs has knock-on affects downstream, so feasibility then becomes the issue, using this path.

Once a PU is used in any session, nothing inside of it can be changed, for reliability or not.

[FW17]

http://e2.365dm.com/16/03/16-9/20/alons ... 0321063333