2015 Italian Grand Prix - Monza, September 4 - 6

[Just_a_fan]

The FIA should be DSQ!












FOM and Bernie too for that matter...

[iotar__]

Laughable decision and from now on everybody will do what they want!!!

Did you read the official declaration ? The tires were at the required minimum pressure when they were fitted to the car, as was supervised by Pirelli tire engineer.

I did read it. "Having heard from the Technical Delegate, the Team Representatives and the Pirelli Team Tyre engineer, the Stewards have determined that the pressure in the tyres concerned were at the
minimum start pressure recommended by Pirelli when they were fitted to the car'

So you tell me me: how did they determine that? Maybe I missed it, can you point out for me their official measurements? They say team followed procedure but they don't even know what the procedure is. I assume it was blankets for one team and no blankets for others.
"Nevertheless, the Stewards recommend that the Tyre Manufacturer and the FIA hold further meetings to provide clear guidance to the teams on measurement protocols".
Why if everything was correct anyway?

[Shrieker]

So you tell me me: how did they determine that? Maybe I missed it, can you point out for me their official measurements?

Ask them lol.

[langwadt]

From now on, it is open season. Every team should just slightly cheat. "Cheat responsibly"

or the FIA should measure consistently

[Moose]

Yep, all that will happen from now on is that the teams will have a discussion about why they couldn't pin anything on Merc. Then we'll turn up at Singapore, and the FIA will say "the new process for measuring tire pressure is x, y and z, if you're found to have violated it by that measuring system, then you're ---".

[Just_a_fan]

That was on the grid so there was a temp drop between fitting on the car and FIA measurement. That appears to be the issue here. The new "rule" says the pressure has to be better than a certain minimum value when the tyre is first fitted to the car. The pressure was, presumably, confirmed by the Pirelli engineer. The FIA then measured the pressure at some point in the future and found a different value likely because the temperature changed.

The FIA either needs to stick to the rule as written or set out a procedure for checking these values at various times prior to the start of the race.

[ringo]

The delegate doing the measurement probably let out some of the air when he was place the gauge on the tyre.
It's simple as that and sounds pretty embarassing. the measurements should be left to Pirelli and Pirelli alone.

[pob]

The initial report says "the thread surface temperatures of the left hand side rear tires of the cars.... was within the specification of the tire supplier" So the temperatures were in normal range when they took the measurements for the pressure.

That's to do with the maximum temperature allowed from the tyre blankets (they're not allowed to overheat the tyres).

Can someone work out exactly how much Rosberg's tyres must have dropped in temperature before the pressure was measured please?

[ChrisM40]

It seems to me that its the FIA procedure and rule that's faulty here. If the tires are initially checked in a certain temperature range and found to be legal then it should follow that they shouldn't be able to be out of pressure range when still in the temperature range later, even if the temperature is lower.

Clearly the FIA specs are just wrong and someone at the FIA just made a really stupid and obvious mistake when writing this rule.

[gray41]

Was Nico called for the 1.1 infringement?

[ChrisM40]

Was Nico called for the 1.1 infringement?

Yes.

[LionKing]

Was Nico called for the 1.1 infringement?

Yes.

Delagate should take 5% of the air out for that.

[ChrisM40]

Was Nico called for the 1.1 infringement?

Yes.

Delagate should take 5% of the air out for that.

Or the tyres just cooled.

I dont buy Smedleys claim that tyres cool very slowly. They are low mass, black and have a rough surface after a little use, they will cool off damn fast. If the tyres were measured at 19.5psi at 110c then yes they could easily be 1.1 psi lower after a few minutes.

[PlatinumZealot]

Thank God logic has won through. With so many crazy opinions buzzing around they would have you doubt your own common sense.

Now hopefully we can discuss the actual race for once.

[langwadt]

The initial report says "the thread surface temperatures of the left hand side rear tires of the cars.... was within the specification of the tire supplier" So the temperatures were in normal range when they took the measurements for the pressure.

That's to do with the maximum temperature allowed from the tyre blankets (they're not allowed to overheat the tyres).

Can someone work out exactly how much Rosberg's tyres must have dropped in temperature before the pressure was measured please?

1.1psi ~5% low, so roughly 5% low in absolute temperature, ~20 degrees down from 110'C