Burning off fuel behind safety car

[Stonka]

Long time lurker, first time poster.

I recall a radio transmission last weekend from Rosberg regarding running in a low gear to burn off fuel during the safety car period. Keeping the car at the target weight instead of ending up carrying more fuel than needed for the rest of the race...

Question being, is it possible to have a special engine map that continues to burn fuel at the 100kg/hr rate even with the engine under little load and low(er) RPM ? is it possible without damaging the engine ? are teams already doing it ?

I'd have thought if possible, would result in a lot of unburnt fuel in the exhaust, and would make for quite the show during a night race...

Having the ability to do this, especially over a long safety car period, would give a massive advantage over a team that didnt...

[turbof1]

Question being, is it possible to have a special engine map that continues to burn fuel at the 100kg/hr rate even with the engine under little load and low(er) RPM ? is it possible without damaging the engine ? are teams already doing it ?

No; there's a techical regulation that prescribes the fuel flow rate under the 10,500 rpm as a function.

Below 10500rpm the fuel mass flow must not exceed Q (kg/h) = 0.009 N(rpm)+ 5

[rjsa]

Tells a lot about how concerned with fuel efficience F1 is.

Guess we need points for spared fuel to keep going green.

FAIL!

[Tim.Wright]

Tells a lot about how concerned with fuel efficience F1 is.

Guess we need points for spared fuel to keep going green.

FAIL!

come on, its such an insignificant use case its not even worth discussing...

Putting the car in 2nd gear and keeping it pegged at 10k RPM will do the trick. Its hardly wasting fuel either, since its fuel that would have been used anyway if there was no safety car...

[rjsa]

It has been stablished before that the amountof fuel used during races is not the issue of F1 being green. It's the technology shaping the future of the auto industry.

Well, burning fuel to get lighter goes against the spirit...

[piast9]

I doubt that this issue appeared this year. Using off excess fuel after safety car for sure was done in all seasons where there was no refuelling or even with refuelling but when the safety car was after last round of pitstops.

[langwadt]

I doubt that this issue appeared this year. Using off excess fuel after safety car for sure was done in all seasons where there was no refuelling or even with refuelling but when the safety car was after last round of pitstops.

they also did it in qualifying in 2006-2007 (?) when they had to start with the fuel they started Q3 with but were allowed to add some for each lap they had done