Great car for La Sarthe. Though I'm a bit confused by your fuel usage. What's your basic setup (tires, HP, Weight), and what fuel map did you use? Mine is running on Racing Mediums, 512hp, 2500 lbs (1134 kg). I can easily get 3+ laps out of it. It's not by any means the fastest car around La Sarthe (if you're getting sub 4:00 you're doing great), which made for a more interesting race than the usual Le Mans domination (such an easy race...lol), but I didn't have any trouble with the fuel, really. I just set it at fuel map 6 and forgot about it.
I will send my settings when I get home, I ran the 30 minute race
Ahhhhh... I think I see where the problem is. You're running almost 600hp with a High RPM turbo. Of course that's fine. Nothing wrong with that. Although, you will get more fuel mileage with a mid/low RPM turbo and less HP. I can almost get 4 laps out my setup with a bit of short-shifting/coasting (ok, more than "a bit"....lol). To each their own of course. I sometimes find utilizing vehicles that can only manage 2 laps at La Sarthe preferable, as it tends to make the race a bit spicier. It is one of the easier WTC events in the game, so often we have to make things interesting ourselves.
I will try with lower turbo and or lower hp....
It's up to you. As I said, it's not always preferable. It just depends on what YOU are trying to get out of the race. In fact, I am going to give La Sarthe another go with the high RPM turbo, and see how it pans out. Both are perfectly viable options, I would think, depending on how easy (or hard) you want the race to be.
Deleted, but had to say I re-ran the Elantra w/out turbo added and was able to squeak out a three lap stint at FM6 at the 30 minutes of Le Mans...
