Honda - another disaster ?

Honda - another disaster ?

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Discussion

Dr Z

3,396 posts

171 months

Tuesday 13th June 2017
quotequote all
jsf said:
all I can suggest Dr Z is you read up on how you optimise a racecar for ultimate lap time, then you may understand what you are saying is nonsense, you don't need another car to use as reference to set your own up.

This is very basic stuff for a race engineer, where you are always trying to find the correct balance between drag and downforce against the available power, once you have that worked out then you work on chassis balance for the desired level of downforce you are going to run.
If as you and others are arguing that they are being compromised by the lack of power and having to trim the downforce available to them, it would be interesting to look at the performance at Monaco. However, to my untrained eye there wasn't a big Monaco specific aero package on the car as such (correct if wrong), which begs the question; why weren't they trying to put every little bit of downforce they have on the car at Monaco when they could have scored some good points?

Presumably, it will then be argued that even at Monaco they were having to compromise and trim out.

I'm not that convinced that chucking a load more downforce (which is no free lunch) is going to solve some of the performance deficit, but I'll be happy to be proved wrong if they make it work either with Honda or Merc.

After all, I'd love to see McLaren back at the front.

anonymous-user

54 months

Tuesday 13th June 2017
quotequote all
Dr Z said:
jsf said:
all I can suggest Dr Z is you read up on how you optimise a racecar for ultimate lap time, then you may understand what you are saying is nonsense, you don't need another car to use as reference to set your own up.

This is very basic stuff for a race engineer, where you are always trying to find the correct balance between drag and downforce against the available power, once you have that worked out then you work on chassis balance for the desired level of downforce you are going to run.
If as you and others are arguing that they are being compromised by the lack of power and having to trim the downforce available to them, it would be interesting to look at the performance at Monaco. However, to my untrained eye there wasn't a big Monaco specific aero package on the car as such (correct if wrong), which begs the question; why weren't they trying to put every little bit of downforce they have on the car at Monaco when they could have scored some good points?

Presumably, it will then be argued that even at Monaco they were having to compromise and trim out.

I'm not that convinced that chucking a load more downforce (which is no free lunch) is going to solve some of the performance deficit, but I'll be happy to be proved wrong if they make it work either with Honda or Merc.

After all, I'd love to see McLaren back at the front.
Every car at every circuit has to compromise its setup to maximise the lap time performance. This is basic stuff.

More power = lower lap times because the compromise result is better.

if you were running a car with 200BHP, you would run less drag and downforce than one running 400BHP to maximise the performance.

Look back to the era when we had the turbo and NA cars racing together, the turbo cars ran huge wings compared to the NA cars, both type of cars were optimised to attain their best performance based on the power they had available.

Doink

1,652 posts

147 months

Tuesday 13th June 2017
quotequote all
The way I've always understood it was if you had a power advantage then you were able to run more wing, wing equals downforce and also drag but with the power advantage you could overcome that but its finding that balance.

From what were led to believe the McLaren chassis isn't a dog, might not be on par with Merc or Ferrari but its up there with Williams, redbull and force india, so because McLaren are lacking so much straight line speed is it safe to assume it's a power unit thing rather than them running too much wing, after all running too much will make them look good in the corners(which they are), or is the power unit that bad that they're having to trim the wing to the very limit of what they can get away with, if that is the case I think they're doing a pretty good job in the corners with less downforce than the others, imagine if they could run a bit more if only they had more power to overcome the drag, I think they'd be top 5 and certainly not being lapped

Gary C

12,441 posts

179 months

Tuesday 13th June 2017
quotequote all
I agree with jsf. A car even at Monaco is trading down force for speed and a more powerful engine has always been stated as allowing more flexibility with the aero package.

Ahonen

5,016 posts

279 months

Tuesday 13th June 2017
quotequote all
Gary C said:
Maybe they will have to get out the comfy chair and make Ron sit in it with only a cup of coffee at around 11 until he confesses.
hehe What, and poke him with the soft cushions?

Gary C

12,441 posts

179 months

Tuesday 13th June 2017
quotequote all
Ahonen said:
Gary C said:
Maybe they will have to get out the comfy chair and make Ron sit in it with only a cup of coffee at around 11 until he confesses.
hehe What, and poke him with the soft cushions?
Yey, someone gets it smile

Vaud

50,511 posts

155 months

Tuesday 13th June 2017
quotequote all
Gary C said:
Ahonen said:
Gary C said:
Maybe they will have to get out the comfy chair and make Ron sit in it with only a cup of coffee at around 11 until he confesses.
hehe What, and poke him with the soft cushions?
Yey, someone gets it smile
Put him in the rack!

paua

5,734 posts

143 months

Tuesday 13th June 2017
quotequote all
Put him on the (steering ) rack.

Bit old to drive, isn't he?

Gary C

12,441 posts

179 months

Tuesday 13th June 2017
quotequote all
I apologise for bringing this thread into disrepute and respectfully withdraw

smile

Dr Z

3,396 posts

171 months

Wednesday 14th June 2017
quotequote all
Went through a few quali laps and recorded minimum speeds through some corners. Also some max speeds.

Monaco;

Overall Lap time 1:13.249 1:13.162 1:12.496
Driver Stoffel Carlos Max
Top Speed (DRS) 285 287 292
St. Devote 108 112 109
Massanet 160 159 155
Casino 135 135 136
Mirabeau Haute 77 72 76
Hairpin 43 42 46
Mirabeau Bas 79 80 83
Portier 79 80 79
Tunnel Top speed (no DRS) 285 286 291
Nouvelle Chicane 64 63 66
Tabac 162 159 165
T15 118 118 121
Rascasse 58 56 62
Anthony Noghes 80 80 81


Montreal;

Lap time 1:13.669 1:11:459
Driver Fred Hammy
Top (DRS) 302 314
T2 76 81
Top 249 264
T3/4 140 139
T6/7 99 100
Top 294 306
T8/9 114 117
Top (no DRS) 291 302
T10 55 60
Top (DRS) 319 330
T13/14 130 136


All speeds in km/h. Top=Max speed before next corner entry


The McLaren and Toro Rosso are very close in top speed in both the biggest acceleration zones at Monaco. However, given that the RB shares the same PU with TR, the RB is topping out higher, and quicker than both TR and McLaren in the majority of the corners. I can hear the Toro Rosso boys crying, if only that Renault PU could produce a bit more power, we could wack more wing on and be quicker than the Red Bull in the corners. Six tenths off mate. It's not so simple.

The more downforce dependent Sector 1 performance of McLaren (more like Fred) at Montreal is surprising if they are indeed running lower downforce than they'd like due to the power deficit. 0.468s off the best sector time there, with only Merc, Ferrari and RB cars ahead. I can well believe that the power deficit contributes to a little more than half of that time. The low speed performance of the car is not top drawer though, and that's a real marker of a top chassis.

I'll go back to reading the basics. getmecoat

CraigyMc

16,409 posts

236 months

Wednesday 14th June 2017
quotequote all
budgie smuggler said:
Sorry if I've missed this but do we know what the actual failure was on Sunday? All they said at the time was that it was an ICE problem but it sounded very broken in the onboard.
Crankshaft exited through the floor.

FourWheelDrift

88,530 posts

284 months

Wednesday 14th June 2017
quotequote all
CraigyMc said:
budgie smuggler said:
Sorry if I've missed this but do we know what the actual failure was on Sunday? All they said at the time was that it was an ICE problem but it sounded very broken in the onboard.
Crankshaft exited through the floor.
ICE problem, tape came off the reel and clogged up the gears.

anonymous-user

54 months

Wednesday 14th June 2017
quotequote all
Dr Z said:
The more downforce dependent Sector 1 performance of McLaren (more like Fred) at Montreal is surprising if they are indeed running lower downforce than they'd like due to the power deficit. 0.468s off the best sector time there, with only Merc, Ferrari and RB cars ahead. I can well believe that the power deficit contributes to a little more than half of that time. The low speed performance of the car is not top drawer though, and that's a real marker of a top chassis.

I'll go back to reading the basics. getmecoat
I suggest you do because you just don't get it.

If you have had to trim off the drag at high speed due to lack of power, you suffer more at low speed because you are generating less downforce and rely more on the mechanical grip compared to your rivals.

Downforce/drag is a function of the square of speed, so to gain any sensible speed from the car, with a big power deficit, you have to reduce the drag significantly, this shows itself up in the low speed aero assistance.

HustleRussell

24,703 posts

160 months

Wednesday 14th June 2017
quotequote all
Alfonso did 42 laps on the Ultra Softs in Canada IIRC? What, if anything, does that tell us about the aero?

CraigyMc

16,409 posts

236 months

Wednesday 14th June 2017
quotequote all
HustleRussell said:
Alfonso did 42 laps on the Ultra Softs in Canada IIRC? What, if anything, does that tell us about the aero?
Not much really. Canada is gentle on tyres because it has no high load corners and a not very grippy surface. That's why the ultras lasted so well.

MartG

Original Poster:

20,680 posts

204 months

Thursday 15th June 2017
quotequote all
Mike Gascoyne reckons McLaren have already decided to split from Honda

http://www.skysports.com/f1/news/12433/10914414/f1...

C Lee Farquar

4,068 posts

216 months

Thursday 15th June 2017
quotequote all
They ramped that up into a headline, I think.

He just said their rhetoric had changed the last couple of races, which indicated the deal with Honda was finished.

He didn't profess to having any inside information, more of a logical deduction.

Dr Z

3,396 posts

171 months

Thursday 15th June 2017
quotequote all
jsf said:
I suggest you do because you just don't get it.

If you have had to trim off the drag at high speed due to lack of power, you suffer more at low speed because you are generating less downforce and rely more on the mechanical grip compared to your rivals.

Downforce/drag is a function of the square of speed, so to gain any sensible speed from the car, with a big power deficit, you have to reduce the drag significantly, this shows itself up in the low speed aero assistance.
Clearly, you do get it. Fancy helping Toro Rosso out with their st aero? And Haas while we're at it.

Suggest you lose the need to belittle. It's boring and not for a constructive discussion. rolleyes




Vaud

50,511 posts

155 months

Thursday 15th June 2017
quotequote all
Dr Z said:
Clearly, you do get it. Fancy helping Toro Rosso out with their st aero? And Haas while we're at it.

Suggest you lose the need to belittle. It's boring and not for a constructive discussion. rolleyes
I concur. This is generally a constructive and interesting thread.

@JSF - re-read your posts and see if they come across as you intend to - you can get to the same point without being so terse.

KevinCamaroSS

11,638 posts

280 months

Thursday 15th June 2017
quotequote all
Dr Z said:
jsf said:
I suggest you do because you just don't get it.

If you have had to trim off the drag at high speed due to lack of power, you suffer more at low speed because you are generating less downforce and rely more on the mechanical grip compared to your rivals.

Downforce/drag is a function of the square of speed, so to gain any sensible speed from the car, with a big power deficit, you have to reduce the drag significantly, this shows itself up in the low speed aero assistance.
Clearly, you do get it. Fancy helping Toro Rosso out with their st aero? And Haas while we're at it.

Suggest you lose the need to belittle. It's boring and not for a constructive discussion. rolleyes
I'm no aero expert, but, simple logic tells me that the difference in downforce between a high downforce car and a low downforce car is going to become greater the faster they go, therefore in slow speed corners the difference is much less.