Related Clues:

• Roadies' load
• Excites, with 'up'
• Accelerates, as an engine
• Electrical measures
• Rock concert blasters
• Fires up, as an engine
• Pulpit occupants, briefly
• Races, as the engine
• Roadies' equipment
• Current matters
• Revolutions, slangily
• Info. from a tachometer
• Energizes, with 'up'
• Elect. units
• Ratchets (up)