Pirelli 2011 vs Pirelli 2012

Here are our CFD links and discussions about aerodynamics, suspension, driver safety and tyres. Please stick to F1 on this forum.

Do you prefer 2011 or 2012 Pirelli?

2011
23
52%
2012
21
48%
 
Total votes: 44

myurr
myurr
9
Joined: 20 Mar 2008, 21:58

Re: Pirelli 2011 vs Pirelli 2012

Post

raymondu999 wrote:Yes lighter, but not half a second lighter. He would have still been on pole, just with a smaller margin methinks. Lewis had good pace in the race too, considering his strategy meant he was churning out slower average laptimes (while saving on pitstops) and he was in traffic. I don't think Button is a good barometer - he underperformed from the car's capabilities this weekend, as is typical when he can't find a good balance (see races such as Korea 2010 or Hungary 2010)
Half a second is enough fuel for approximately 8 laps. His actual margin was 0.578 seconds so to carry the extra half lap of fuel at in lap speeds would probably not have cost him enough time to dip below 0.5 seconds. He still would have had a half second advantage.

Agree regarding Button. Lest we judge Ferrari's pace by looking at Massa's times, or Red Bull's race pace by looking at Webber's race performances.

User avatar
raymondu999
54
Joined: 04 Feb 2010, 07:31

Re: Pirelli 2011 vs Pirelli 2012

Post

myurr wrote:Half a second is enough fuel for approximately 8 laps.
More like 5.

Fuel consumption is around 2.34 kg per lap, Fuel effect per 10kg is 0.4s around Barcelona. (Figures from James Allen) so 0.5s of a difference would mean about 12.5kg extra fuel. 12.5/2.34 is about 5.3 laps.
失败者找理由,成功者找方法

myurr
myurr
9
Joined: 20 Mar 2008, 21:58

Re: Pirelli 2011 vs Pirelli 2012

Post

raymondu999 wrote:
myurr wrote:Half a second is enough fuel for approximately 8 laps.
More like 5.

Fuel consumption is around 2.34 kg per lap, Fuel effect per 10kg is 0.4s around Barcelona. (Figures from James Allen) so 0.5s of a difference would mean about 12.5kg extra fuel. 12.5/2.34 is about 5.3 laps.
Ah, I was just using the usual 0.3s per 10kg of fuel.

Either way half a lap at full racing speed using your numbers should equal 0.047s difference, so he still had more than half a second in hand.

(2.34 / 2) * 0.4 / 10 = 0.0468.

Edit: Also using his full gap time of 0.578 seconds it's actually just shy of 6.2 laps of fuel.