He opens the door and walks out.  On his way out he grabs a 3 foot tall monster rc truck and a controller with a bunch of buttons on it.  He rolls the truck out to the front of the shop to a machine outside the door to the shop. "This is called a dyno.  Once a month we have a weekend dedicated to racing.  One of the events is a dyno contest.  It measures a bunch of things but the main things are horsepower and torque.  This machine here tells the people how much power is being transferred to the wheels from the engine." He rolls the truck up the machine and starts strapping it down. "This truck will scream.  It has an engine called a 609 stinger.  It is a scale 609 cubic inch V8 but it is a quarter scale engine so it is actually 152 and a quarter cubic inch engine.  You will probably need to cover your ears."