An underdrive pulley system for your Ford Mustang will increase engine horsepower and IMPROVE GAS MILEAGE by reducing the amount of power required to drive external engine accessories on your Ford Mustang. The alternator, power steering, water pump and air conditioner all rob horsepower from the engine. When you replace the factory-sized crank and accessory drive pulley on your Ford Mustang with a resized underdrive pulley, the accessories are slowed, resulting in more horsepower available to drive the rear wheels. Typically, an underdrive pulley will increase output for your Ford Mustang by 12-15 horsepower, resulting in quarter mile improvements of .2 to .25 seconds. In addition, mileage improvements of 2 to 3 mpg are typical.
Need more boost on your Ford Mustang Cobra? Streetsmart Design has a blower compressor overdrive pulley for your Ford Mustang Cobra. An ASP Pulley for your Ford Mustang Cobra can increase boost by as much as 5 psi!
Tech Notes:
All pulleys are manufactured from black nitrided steel unless otherwise noted in the description.
A new belt may be required for proper belt tensioning. Please reference your local parts counter.
Over 3 psi of boost may require timing adjustments. Streetsmart Design recommends Diablosport Predator tuners.
Ford Mustang Pulley
2005-2007 Ford Mustang 4.0 L V6; 25% Crank Pulley
2003 Mustang Cobra Supercharged 4.6 L, Blower Compressor Overdrive Pulley (+3 psi boost to Cobra) - Requires Blower Pulley Installer P/N: 003435 or similar for installation (can be rented from Streetsmart Design-see tool rental below). New Belt Required (Not sold by SSD) - Recommended: Gates K080745.
2003 Mustang Cobra Supercharged 4.6 L; Blower Compressor Overdrive Pulley, 2.80" Diameter (+5 psi boost to Cobra) - Requires Blower Pulley Installer P/N: 003435 or similar for installation (can be rented from Streetsmart Design-see tool rental below). New Belt Required (Not sold by SSD) - Recommended: Gates K080745.
2001-2004 Ford Mustang GT, 4.6 L; Underdrive Pulley System - 25% Harmonic Dampner, 26% Water Pump, 8% Alternator. Retains factory belt.
1999-2001 Ford Mustang Cobra, 4.6 L; Underdrive Pulley System - 25% Harmonic Dampner, 26% Water Pump, 10% Alternator (2001 Model Year uses this part number if you have a short water pump) Short Water Pumps have the pump bolts recessed into the water pump face. Retains factory belt.
1996-2000 Ford Mustang GT, 4.6 L; Underdrive Pulley System - 25% Harmonic Dampner, 26% Water Pump, 8% Alternator
1996-2001 Ford Mustang Cobra, 4.6 L; Underdrive Pulley System - 25% Harmonic Dampner, 26% Water Pump, 10% Alternator (2001 Model Year uses this part number if you have a long water pump) Long Water Pumps DO NOT HAVE the pump bolts recessed into the water pump face
1994-1995 Ford Mustang, 5.0 L; Underdrive Pulley - 26% Crank
New Belt Required (Not sold by SSD) - Recommended: Gates K061031.
1994-1995 Ford Mustang, 5.0 L; Underdrive Pulley System - 26% Crank, 30% Water Pump, 2.75" Alternator; Retains factory belt
2001 Ford Mustang GT, 4.6 L; 26% Short Water Pump
2001-2004 Ford Mustang, 3.8 L; Underdrive Pulley - 25% Dampner Crank Pulley (Black Aluminum)
1999-2000 Ford Mustang, 3.8 L; Underdrive Pulley - 25% Dampner Crank Pulley (Black Aluminum)
1994-1998 Ford Mustang, 3.8 L; Underdrive Pulley - 25% Dampner Crank Pulley (Black Aluminum)
Pressed On Supercharger Pulley Puller and Installation Tool
Pressed On Supercharger Pulley Puller and Installation Tool Rental.
Price will show as $110.00. A $60.00 security deposit is charged and is refunded upon return of the tool. The puller must be returned in usable condition to receive $60.00 security deposit back.
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Ford Mustang Underdrive & Supercharger Pulley Systems
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Ford Mustang Underdrive Pulley, Pulley Systems and Supercharger Pulleys
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ASP Pulleys for your Other Vehicles:
