Quote:
Originally Posted by gwyllion
With that 4% increase in restrictor size (good for about 30 bhp) the petrol engines are still down on power. Top speed during the race:
Oreca Peugeot 302 km/h
Lola Aston Martin 296 km/h
Lola Rebellion/Judd 287 km/h
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No they are not down on power... they are HIGHER on max power than the diesels, and quite notoriously now (4%) if the potential is to be taken to its max possibilities. The problem with petrol is then if they are to take that potential to the zenit, then fuel consumption goes down the drain... badly...
But max power is illusory, even more in a stupid obsolete tech like the petrol engine in its present form. Petrol power is achieved by injecting more fuel into the cylinders, meaning that substantial part of that fuel is still burning (slow burner) when it leaves the cylinders and finishes burning in the exhaust pipe... the reason for the VERY HIGH NOISE and the relative low torque...
And that relative low torque is the reason why a diesel engine even with less potential max power is able to beat petrol. Portimão has very short length straights, it would had been needed the double or triple the straight length for the petrol engine to achieve its max power superior to diesel... lower torque means that it takes more time to get to max power under the same load... Portimão does not allow that time...
SO WHAT IS THE WONDER ABOUT TOP SPEEDS ?
4% larger restrictors is a futile exercise... PETROL ENGINES ARE OBSOLETE... ITS OBVIOUS.. even in the long straights of SPA ... petrol engines will lose... because if they really cranck the volume on those stupid petrol engines to have more torque, fuel consumption will go down the drain... if they stay with a reasonable fuel consumption it will take much more time for those petrol engines to achieve its max power, meaning that even in a long straight they will lose for a diesel that accelerates much faster due to much better torque..i.e... by the end of the straight when the petrol engines starts to catch up and max power (superior to diesel) is about to be reached, they have already lost a considerable distance since the beginning of that straight.
Why people don't catch the obvious and stop *****ing about rules when it is diesel that is much more penalized ??... petrol engines in the present form are obsolete , no big deal, get over it...
No matter what ACO rules it only takes a little more compression rate for diesel to remain in the top level... technique that petrol cannot follow... this is a stupid exercise, all being equal in restrictors and weight a 2 liter turbo diesel would beat a 3.7 l petrol any time soon... petrol engines have a century of development, diesel 4 years... isn't that obvious ??...
The marketing notion that petrol is a superior power engine due to its fuel, by putting a large volume diesel engine to compete with a high rev petrol smaller engine, is a busted campaign... the scum oil lords wanted to make power = speed = more fuel to spend (gasoline), but practical science has proved the contrary that is torque = force = efficiency that matter the most.
meaning that in your day life with a diesel engine car you will be much better in all senses... effective power... an money...exactly the contrary of what the oil scum lords wanted to promote.