I have this problem with LFS since a while now. When I start playing the game, cars don't always have the same power and/or boost level. On the RB4 sometimes boost level doesn't go higher than 4 psi. If I re-instal the game I get back full bost ( around 12psi).
Anyone else with that kind of problem???

Thanks

Claude2009

Sounds like a controller issue. Have you checked the virtual pedal display in the bottom right corner of the screen to make sure you're getting 100% throttle? When you're using 100% throttle there will be a white top to the green accelerator bar.

A friend have a similar problem : he gets power loss after some laps with RB4, without overheat clutch or run over the redline

Thanks for your help, that was my problem.

Claude