Originally Posted by AM03GT

scraping on asphalt is unfortunately unavoidable (most of it is happening on full throttle lean on sweepers)... All the optimal setups and fast cars scrape the chassis for the most part. If you set ride height so that you don't touch down at all it's probably going to be considerably slower than the optimal setup... That being said the usual scraping should be only on the far edges of the sides of the chassis and slightly diagonally across the rear... If you are scraping or touching down in the middle of the chassis or in the front then you are too low or your suspension setup is not right...