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Re: Crippled PTG M3 GT3 (archive)

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Posted by Steve_D on July 26, 2000 at 11:28:40:

In Reply to: Re: Crippled PTG M3 GT3 posted by Bill on July 26, 2000 at 10:28:01:

-The question of whether a dollop (or a liter, 5 liters or whatever) of ‘extra’ fuel allowed the M3 to have fewer stops seems to be a question apart from this part of the contest.-

Please, do you really believe this? Do I have to explain everything?

Lets say Racer B has 100 gallons of fuel, and Racer P has 95 gallons. Let's also assume Fuel Economy (FE) is roughly equal for both cars.

Another assumption, on 95 gallons of fuel, both cars can run a constant 90% of power (this is endurance racing) and still complete the laps needed to be competitive.

With me so far?

OK, now what do you do with the extra 5 gallons if you are racer B? Well, if the race is long enough you can run at 90% power and maybe save a fuel stop in the long run, which gains you X amount of seconds from not having to pit the extra time. Agreed?

ALTERNATELY, Racer B can run , say, 92% of power for the same number of laps as Racer P. Due to the extra fuel, Racer B has a 2% power advantage everywhere. Thus Racer B walks away from Racer P due to slightly less FE concerns,.

Get it?

A truer "all out" indication of lap times comes in qualifying, where conservation of gas, tires, brakes, etc... are much less part of the equation than the actual endurance event.

Anyway, I don't really care about all this besides the fact it makes interesting discusion, I'm waiting for database updates, and I have time to kill.

I'm waiting to hear back on whether Mark Anderson knows the true overage.




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