1 Litre of Petrol Challenge

[gtpcaine]

And always use the clutch downhill!

Wrong, most modern cars use less fuel by coasting in gear than in neutral (clutch pressed) as the transmission keeps the engine turning so you don't need as big a bang, when you press the clutch, the only thing keeping the engine running is fuel (and the general momentum of the engine) so it has to use more.
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Note to self -- read the rest of the thread before posting!

 

[Swagger897]

I'll use an R18 TDI. It's a diesel so you can go far. Not the farthest though I guess...

I did a project for ap physics, it has crap efficiency... It's not even funny how bad it is. It is meager enough to compete, but like all race cars, it's crap

 

[Spektru]

Driving an electric car will be the smartest choice.

 

[LeadFootLiam]

if these coffee breaks are like the coffee breaks in between licenses in GT4, we won't be able to choose the car.

the first try I will see how is the fuel consumption on the car they provide, then, I will drive like an old woman.



but you know, racing drivers need to know how to manage tire, and related to this challenge, fuel consumption.

That is true actually, didnt spring to mind. 👍

 

[Griffith500]

An engine is most efficient at peak torque (heh, kinda obvious in a way). So you'd want to put energy into the car's movement only around peak torque, and only at full throttle.

That means operating within a certain percentage of the peak efficiency at the lowest possible speed (to minimise all kinds of drag), which means the lowest gear. So if peak torque is at 4000 rpm, and it drops to, say, 80% at, say, 2500 and 4750, then you start at 2500, accelerate to 4750 and shut the engine off until the road speed would give you 2500 rpm again, then start the engine through the wheels (potentially more efficient, electronics permitting) and repeat.

Of course, you probably can't turn the engine off in GT6, so it'd have to be something else. Namely, cruising at the engine speed that gives you the best brake-specific-fuel-consumption for the required throttle opening (iterative testing required) and in the lowest gear that's achievable - certainly for a start. But I doubt GT actually has realistic BSFC curves...

 

[Magic Ayrton]

An engine is most efficient at peak torque (heh, kinda obvious in a way). So you'd want to put energy into the car's movement only around peak torque, and only at full throttle.

That means operating within a certain percentage of the peak efficiency at the lowest possible speed (to minimise all kinds of drag), which means the lowest gear. So if peak torque is at 4000 rpm, and it drops to, say, 80% at, say, 2500 and 4750, then you start at 2500, accelerate to 4750 and shut the engine off until the road speed would give you 2500 rpm again, then start the engine through the wheels (potentially more efficient, electronics permitting) and repeat.

Of course, you probably can't turn the engine off in GT6, so it'd have to be something else. Namely, cruising at the engine speed that gives you the best brake-specific-fuel-consumption for the required throttle opening (iterative testing required) and in the lowest gear that's achievable - certainly for a start. But I doubt GT actually has realistic BSFC curves...

Thank you James May

 

[6ranTur15m05]

If PD included the VW Polo Bluemotion...

 

[R0ssingt0n]

I'd just floor it 'til it's empty then coast the rest of the way...