I love to take newbies into the pits and go up to a Nitro car for a warm up. They get it running, then turn on the pump. Now the good noise starts. They let it idle for a minute. By now the fumes are starting to make your nose burn & eyes water. The newbie is a little concerned. Next they crack the throttle, which sounds more like an explosion than anything related to an automobile (and is probably 130db). The general reaction to this is for the crowd to lurch backwards like a school of fish changing direction on Animal Planet. I tell the newbie, we can go now.