Grand Prix 2 & IndyCar Racing 2 Forums

Hello all

Used to play GP2 in my youth and now the x86 version is out im back playing it again! Anyway, ive started the 1979 season and have installed a few custom tracks. This weekend i was racing the kyalami circuit which i added to slot 13 (the download txt file with the circuit said its been tested with all slots and works fine). I downloaded the 1979 track from grandprix2.de site.

Anyway, the track works fine just that the fuel burns really slow. So after having fuelled for 25 laps, by time i got to the pitstop i still had 15 or so laps of fuel.

Any idea how i fix this so the fuel gets used correctly?

Thanks

Excellent question! This is one of my favorites.

I will copy/paste my answer from years ago on this topic seen here: https://grandprix2.de/gp2forum/viewtopi ... =2&t=23878

I use standard gp2 (not x86gp2) but the method should be the same because from what I understand you can edit the magic data of custom tracks with a text file somewhere.

Here is how I do it:

First I get sufficiently good at practicing on a track, and I know the line around the track well I concentrate on my setup. By then my fuel usage is repeatable.

I do a test race with 2 stops. Let's say for sake of example, the race is 60 laps. The car will run 3x 20 lap stints.

The first fuel load should be 20 + 2 = 22 laps When the green flag drops, I will probably be at 21.9.

I see where the car is when I cross the finish line after the first time the "pit" light comes on directing me to pit. This should happen with 2.9 Laps of fuel. Let's say for this example I only have 2.3 laps left... this means I am .6 laps short of fuel. I need to DECREASE the magic number.

So I will make a fraction 22 / ( 22 + .6) = 22 / 22.6 = .9735.

I then multiply .9735 times the magic data number. Let's say the magic data number is 16384. 16384 X .9735 = 15949. This is my new magic data number.

If you need to burn MORE fuel instead, and you get a higher number... let's say you cross the line with 3.4 gallons of fuel, then this is 3.4 - 2.9 higher than you wanted to be, or .5. so I take 22 + .5 / 22, which would be 22.5/22 or 1.0227. Multiple 1.0227 times your magic data number to get a new one. Same idea just increasing the magic data number.

This seems to work excellent for me- and I can literally get the numbers SPOT on by the 2nd try. I hope this helps.


Also - you can do this with the CC's fuel number if their values isn't exactly right either. I do this regularly with all of my fuel values (does not matter if it's a custom track or a vanilla one)

Wow thanks for the answer - plenty for me to do to get it right!

Thank you for replying so quickly!!