Shanghai kg / lap and fuelling rate

[Pierre6]

Does somebody knows how much fuel is burnt in one lap in Shanghai? (kg/lap)

And what is the fuelling rate during pitstops? (kg/second)

Thanks!

[The Thorn]

Here is a chart of how much fuel is going to be used at the start. It might give a view on what the speed difference is between an amount of fuel.
This is what I have found:

1. Sebastian Vettel - 644,0 kg
2. Fernando Alonso - 637,0 kg
3. Mark Webber - 646,5 kg
4. Rubens Barrichello - 661,0 kg
5. Jenson Button - 659,0 kg
6. Jarno Trulli - 664,5 kg
7. Nico Rosberg - 650,6 kg
8. Kimi Raikkonen - 673,5 kg
9. Lewis Hamilton - 679,0 kg
10. Sebastien Buemi - 673,0 kg
11. Nick Heidfeld - 679,0 kg
12. Heikki Kovalainen - 697,0 kg
13. Felipe Massa - 690,0 kg
14. Kazuki Nakajima - 682,7 kg
15. Sebastien Bourdais - 690,0 kg
16. Nelson Piquet - 697,9 kg
17. Robert Kubica - 659,0 kg
18. Adrian Sutil - 648,0 kg
19. Timo Glock - 650,0 kg
20. Giancarlo Fisichella - 679,5 kg

the top 3 is pretty light if you see the rest of the field, they are the only drivers under 650 kilograms, except for Sutil. This tells something about why we didn't see a Brawn on the first row. I think it will get interesting to see the first 3 get a gab in the first stint, but get overtaken by others in the other part(s) of the race.

[Pierre6]

Hey man!

yeah thanks. But when we are watching the race they always estimate how much laps they can drive with that amount of fuel. I have been searching google to find the (kg fuel)/lap ratio for shanghai and came up with 2.6?

So the minimal weight of the car (driver included) is 605 kg.
Than for example Vettel weighs 644 kg after quali.
--> 644 - 605 = 39 kg of fuel
--> 39 / 2.6 = 15 laps

But when we look at barrichelo --> 661 kg
--> 661 - 605 = 56 kg of fuel
--> 56 / 2.6 = 22 laps
So he has seven laps more.

Is this the right way to calculate the first pitstop?

And does someone knows the fuelling ratio in kg/second?

[Chaparral]

Probably leading with my chin here but the published weights of the car - are they just the car & fuel weights only or are they car/fuel/driver weights?? no ones ever specified as far as I know

[timbo]

Probably leading with my chin here but the published weights of the car - are they just the car & fuel weights only or are they car/fuel/driver weights?? no ones ever specified as far as I know

Car + fuel + driver. Car + driver without fuel is 605.

[Pierre6]

I think it's with the driver because otherwise the weight
would say that the cars are fuelled for the whole race.
But than again, maybe i'm missing something here

[nudger]

id be interested to hear the estimated penalty per 10kg fuel too.
cant quite see why mclaren was so slow even with the heaviest car in the last top 10.

[vall]

Probably leading with my chin here but the published weights of the car - are they just the car & fuel weights only or are they car/fuel/driver weights?? no ones ever specified as far as I know

Car + driver without fuel is 605.

Can the KERS cars achieve 605kg?

[timbo]

Probably leading with my chin here but the published weights of the car - are they just the car & fuel weights only or are they car/fuel/driver weights?? no ones ever specified as far as I know

Car + driver without fuel is 605.

Can the KERS cars achieve 605kg?

Yes they can. But they have little ballast left to change front/rear balance.

[myurr]

Can the KERS cars achieve 605kg?

Yes. Otherwise they wouldn't be able to run any ballast at all.

[Pierre6]

Calculating the 10kg penalty:

This is how i would calculate it. But not sure if its correct!
Because i don't know the exact weights of the cars in Q2
I cannot calculate the penalty for one driver.
So I search for 2 drivers with almost the same times in Q2
and assume they both run with almost empty tanks. So than
I can compare the times is Q3.

In Q2
--> Hamilton: 1'35.740
--> Alonso: 1'35.803 --> Hamilton 0.063s faster

In Q3
--> Hamilton: 1'38.595
--> Alonso: 1'36.381 --> Hamilton 2.214s slower

Hamilton --> 679 - 605 = 74kg fuel
Alonso --> 637 - 605 = 32kg fuel

So if we assume that both drivers both did the same good lap in Q3
and we neglect that Hamilton is 0.063s faster in Q2 we have:
74 - 32 = 42 kg gives a gap of 2.214s
--> So for 10kg of fuel: 2.214 * (10/42) = 0.527s/10kg!

So again: is this a good way to calculate this? I'm realy curious!

[ISLAMATRON]

id be interested to hear the estimated penalty per 10kg fuel too.
cant quite see why mclaren was so slow even with the heaviest car in the last top 10.

He was fueled the heaviest and I think he only ran the primes in Q3 ... that equals super slow(still faster than a lighter Buemi) but good strategy for the race.


When calculating race laps dont forget the recon & formation laps.

Again It looks like RBR has put their drivers on stupid strategies... Too much fuel to start the race on the option tires(more weight will make them wear out faster), & not enough fuel to take full advantage of the longevity of the prime tires, this of course assuming they wont be making a 3 stop... even then still not the right fuel load Unless they can make the Primes last a good 13-14 laps.

[mep]

Seems like Brawn GP has a quite good strategie to win.
They should thake the lead after the first pit stops.

[vall]

Seems like Brawn GP has a quite good strategie to win.
They should thake the lead after the first pit stops.

If Piquet does not crash in Lap 12

[nudger]

id be interested to hear the estimated penalty per 10kg fuel too.
cant quite see why mclaren was so slow even with the heaviest car in the last top 10.

He was fueled the heaviest and I think he only ran the primes in Q3 ... that equals super slow(still faster than a lighter Buemi) but good strategy for the race.

nah, he was definitely on the option tyre...not sure if used a new set mind you