Related Clues:

• Ballyhoos
• Speeds (up)
• Perks (up)
• Pumps up
• Guns, as a motor
• Guns the engine
• Vivifies, with 'up'
• Races the engine
• Races, as a motor
• Speeds up
• Talks up
• Vrooms the engine
• Prepares to drag
• Plugs, plugs, plugs
• The R in RPM