I use overload, and I'm trying to make an engine go faster. It's stuck at 15 mph, and really irritates me. I switched out the engine, but it's still doing the same thing. I cranked up the horsepower all the way, it consumes gas and makes the sound like it's going that speed, but it's stuck at 15. I tried un-installing and re-installing the mod, turning it off and back on, but still nothing. The car release will be delayed.