F1 » Spanish Grand Prix 2013: New hard tyre won't change much – Vettel

Sebastian Vettel: I think the number of pit stops will be the same here in this race as at the last few.

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May 10, 2013 8:18 PM

prof. what a load of torque from you! how do you make out that more torque equals higher fuel consumption? I would have thought that more revs (higher capacity use) would give higher usage. perhaps sunny can explain?

next year there will be a limit on fuel usage which wil mean more efficient engines for a race, and LOWER fuel needs. a for kers, it will provide 160 bhp next year....not worth it? think again (not that I like it).

finally, why do you want refuelling? the cars will be ble to carry enough fuel for the race at the metered rate. this is supposed to be racing, so FEWER or NO pitstops is what th true fans want, NOT more.


May 10, 2013 9:02 PM

The stoichiometric ratio is the perfect ideal ratio, it is a technical term used to express a perfect combustion were no left over's are left, unburned air or fuel.
The problem in real life is, there is and will never be anything mechanical which can be said to be one hundred percent perfect.
The 1.6l v6 turbo will have a lot more torque at much lower engine rpm.
The 1.6l v6 turbo engine running at max 15k rpm will consume less fuel than the 2.4l v8 running at max 18k rpm, even if the combustion is of the same size and efficiency there will be less combustions per minute.


May 11, 2013 7:43 AM

pcx. sunny's liveliehood is in engines, and I would go by his comments anytime. I also worked with engines (my own) but am not so conversant with the science f it. however, I see serious flaws in your arguments. a turbo is more efficient than an na engine (that is why all manufacturers are turning to smaller turbo engines). and I see no reason why a turbo would run any hotter as the thermal efficiency is relative to the amount of fuel being utilised, which will be less.


May 11, 2013 12:27 PM

A forced induction engine is more efficient than an NA engine.
Size being equal, a forced induction engine will be able to use more fuel for the simple reason that a much bigger mass of air will be forced into the cylinders.
The fuel/air ratio will still stand at one part of fuel to every fourteen point seven parts of air.
A forced induction engine will run a lower compression ratio.
And finally, the pure petrol head will only see the real challenge of the ability of extracting the maximum power from an engine design when the design is NA.

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