Wet Setup / Dry Setup

https://igpmanager.com/play/?url=race-live/178/2d
The weather in Germany was 8°C, light rain, and 97% humidity

One of my drivers started race with wet setup ( http://igpmanager.com/play/?url=team-driver/11990 ) and the other with dry setup ( http://igpmanager.com/play/?url=team-driver/11270 )

Their laps times are pretty similar, less than a second per lap.

Their difference I think it should be at least 3-4 seconds/lap.

Maybe not a bug, but it really need a revision .

Now, the weather changed to dry, it happens the same, dry/wet setup are performing almost the same

After checking these 2 pages:

https://igpmanager.com/play/?url=race-result/178/11990
https://igpmanager.com/play/?url=race-result/178/11270

and some other server logs, it looks as though both your drivers were using the same tyre compounds throughout the race.  What makes you think they were on different tyres?  Maybe there's a bug in the Pit Strategy window?  I'd like to improve how the current compound is displayed.  At the moment you have to rely on inference mainly.

Maybe by setup he was referring at wings, suspension, etc., not the tires. Just a thought.

Exactly!

Ah I see.  This is one of the remaining "critical" bits of development I have left to do.  A few of the setup parameters do not directly affect the car as they should.  I should have this done within the next few hours.