As said in the title, i would loke to see kilograms/pounds in setup screen for the fuel load instead of percent

maybe easyer with litres? almost same thing

yeah, i'd rather volume than weight.

Quote from bunder9999 :

yeah, i'd rather volume than weight.

Imagine that in real life, yep, thats 19 lbs of fuel mate, oh yeah, and 6lbs of oil as well, how retarded would that be lol.

Just adjust the fuel and look at how much the total mass of the vehicle changes. Simple.

weighted fuel is geared more for aircraft.

i would like to see the option for percentage or quantity; gallons (US), imprial gallons(UK) and litres.

If it ain't broke don't fix it..

In professional racing mass is more commonly used than volume because fuel volume differs with temperature. 20 litres of fuel at 20 degrees Celsius will be heavier than 20 litres of fuel at 50 degrees Celsius because the colder fuel is more dense. The volume changes with temperature but the mass stays the same.

Multiple different units ftw.
+1

Quote from S14 DRIFT :

If it ain't broke don't fix it..

Who cares about gallons or pounds? I care about what I have left, imagine this,

82 pounds of fuel left or 7 gallons.... Well that doesn't tell me if I have a fourth of a tank or half a tank now does it?

You might say "Do the math", I say why... LFS already does it.

Quote from amp88 :

In professional racing mass is more commonly used than volume because fuel volume differs with temperature. 20 litres of fuel at 20 degrees Celsius will be heavier than 20 litres of fuel at 50 degrees Celsius because the colder fuel is more dense. The volume changes with temperature but the mass stays the same.

Solid point and well grounded. However possibly beyond the bounds of what Scavier may wish to accomplish.

How much does the density vary over ther temperture range usually experienced in an F1 (to arbitrarily pick a series) season? Assuming that its significant, fuel density would have an effect on fuel mileage since fuel/air mixtures will be assumed to be optimal. Could be rather interesting for Endurance racing, or even feature lengh races, once weather is in place. A change in weather could make a difference in fuel strategy and a viable use of fuel mix adjustment

Quote from KeiichiRX7 :

Solid point and well grounded. However possibly beyond the bounds of what Scavier may wish to accomplish.

How much does the density vary over ther temperture range usually experienced in an F1 (to arbitrarily pick a series) season? Assuming that its significant, fuel density would have an effect on fuel mileage since fuel/air mixtures will be assumed to be optimal. Could be rather interesting for Endurance racing, or even feature lengh races, once weather is in place. A change in weather could make a difference in fuel strategy and a viable use of fuel mix adjustment

The variance in temperature wasn't to do with the ambient temperature. The clever teams used to bring refrigerators to the track so they could cool the fuel down well below the ambient. I'm sure I have a video somewhere showing -20 or -30 degrees Celsius on a Renault fuel refrigerator from the 1980s. Once the fuel actually goes in the car it's very close to the engine so it quickly heats up above the ambient, but of course some has been burnt already so the increase in volume doesn't cause over pressuring in the tank.

I go for liters and galons

Quote from Chrisuu01 :

I go for liters and gallons

ugh, gallons... when will everyone start using the metric system?

Quote from bunder9999 :

ugh, gallons... when will everyone start using the metric system?

Agreed. THIS shows almost every country uses it officially.

Quote from bunder9999 :

ugh, gallons... when will everyone start using the metric system?

The country i live in uses the metric system but somehow americans stil like the imperial system

I diagree with some people is this thread. When I'm racing my engineer, team and myself always talk in litres of fuel used and litres of fuel needed for the next race. This is because we know how many litres of fuel are burnt per lap at each track. So this would be the correct way of doing things however percentage does seem to work ok in lfs and there are a thousand other more important things needed before time is spent on things like this.

Quote from Alric :

When I'm racing my engineer, team and myself always talk in litres of fuel used and litres of fuel needed for the next race. This is because we know how many litres of fuel are burnt per lap at each track. So this would be the correct way of doing things

I did say mass was used in professional racing. In F1, V8 Supercars etc the fuel is measured by mass, not volume. Measuring fuel by volume will work OK in club racing, karting etc where you're not stretching everything to the limit, but by measuring in volume you really should have in the back of your mind that the volume will vary with temperature. Ask your engineer if he has heard about this before and if he hasn't give him a science textbook.

I'd like this just to have mileage per tank variation when we have weather simulation. Amp's right, not much difference would be seen in club level racing, but it would make huge differences with the ammounts of fuel endurance racers go through.

mass to volume isent hard to work out i mean most normal fuel ie unleaded is around .87g per mill or 870g per litter methanol is around .78 so you can work it out with maths and yes weight will change dependant on tempture but its funny cause most exotic fuels wont freeze so the weight change isent as dramatic as normal fuels.


can someone explain this though when water is frozen its volume grows.

Quote from MAD3.0LT :

can someone explain this though when water is frozen its volume grows.

Hydrogen bonding.

Quote from amp88 :

Hydrogen bonding.

Sir I salute you, internet users that aren't retarded are rare these days.

I would welcome a clearer indication about the mass of fuel loaded (though as w4h points out you still have some clue about it, it's not really straightforward)

But even more I'd like to have it in liters, percentage can be misleading when changing cars, volume like mass has a meaning in RL and thus is easier to relate to than just a ratio.

but with the fzr u dont have such probmem because the tank has a 100l capacity.... so 100% is the same as having 100L ....

but to be honest, i dont really have much of a problem with how it is right now...

Not for bumping an old thread. "A small derivation of this suggestion"

ATM; liter, kg, gallons or whatever units of measure are intermediary variables for reaching the finish line with minimum fuel amount in racing world.