ASP Underdrive pulleys:
*NEW FOR DODGE HEMI!*
Dodge HEMI 5.7L 20% Reduction: Underdrive pulleys reduce the amount of drag on the front of the crankshaft by changing pulley diameter allowing more power to be sent to the wheels. By reducing drag the engine will also run more efficiently. Pulleys are easy to change and are made of a heavy duty black nitride hardened steel for extended durability. ** Will require longer belt, email for correct gates belt part number **
2000-2002 4.7L Magnum 25% Reduction: Underdrive pulleys reduce the amount of drag on the front of the crankshaft by changing pulley diameter allowing more power to be sent to the wheels. By reducing drag the engine will also run more efficiently. Pulleys are easy to change and are made of a heavy duty black nitride hardened steel for extended durability. ** Will require longer belt, email for correct gates belt part number **
25% Reduction Crank Pulley and Harmonic Balancer, Amazing Power improvment 8+HP 27+lb of torque.
2000-2003 5.9L Ram/Dakota 25% Reduction: Underdrive pulleys
reduce the amount of drag on the front of the crankshaft by changing
pulley diameter allowing more power to be sent to the wheels. By
reducing drag the engine will also run more efficiently. Pulleys are
easy to change and are made of a heavy duty black nitride hardened steel
for extended durability. ** Will require longer belt, email for correct
gates belt part number
25% Reduction Crank Pulley With New Damper - Amazing Power Improvement 6+HP and 26+ lb of torque.
** COMES WITH ALTERNATOR AND CRANK PULLEY-- A SOCAL DAKOTA EXCLUSIVE!
1992-1999 3.9, 5.2, 5.9 Magnum Ram/Dakota, 25% reduction Crank, 25% reduction Alternator: Underdrive pulleys reduce the amount of drag on the front of the crankshaft by changing pulley diameter allowing more power to be sent to the wheels. By reducing drag the engine will also run more efficiently. Pulleys are easy to change and are made of a heavy duty black nitride hardened steel for extended durability. ** Will require longer belt, email for correct gates belt part number **
1992-EARLY
1998 3.9, 5.2, 5.9 Magnum, 25% reduction Crank, 25% reduction Alternator, 17%
reduction Water Pump: Underdrive pulleys reduce the amount of
drag on the front of the crankshaft by changing pulley diameter allowing
more power to be sent to the wheels. By reducing drag the engine will
also run more efficiently. Pulleys are easy to change and are made of a
heavy duty black nitride hardened steel for extended durability. ** Will
require longer belt, email for correct gates belt part number **
Poly Cog Belt for ASP pulley change
**Order with Pulley order only and we will get you the correct belt
for your application. **
asp Underdrive pulley info:
asp Pulleys:
Improve the performance of your vehicle in three ways. Underdrive
pulleys are an inexpensive solution to more horsepower. By reducing the
size of your crankshaft pulley, your power robbing accessories turn
slower, resulting in less drag on your engine. That means more
horsepower to your rear wheels. You also get better fuel economy and
longer lasting accessories. By careful design and sizing, no adverse
effect occurs to cooling or charging systems. All pulleys are top
quality, machined steel with multiple finishes.
What do Underdrive Pulleys do?
Underdrive pulley systems increase engine horsepower by reducing the
amount of power required to drive external engine accessories. For
example, the alternator, power steering, water pump and air compressor
rob horsepower from the engine. By replacing factory-sized crank and
accessory drive pulleys with a resized pulley, the accessories are
slowed, resulting in more horsepower available to the drive wheels.
Typically, a set of Auto Specialties street pulleys will increase
horsepower by 12-15, and increase mileage by 2 to 3 MPG. All pulleys are
manufactured from Billet Steel or Aluminum, exceeding factory quality.
•Black Nitride Hardened Steel!
•Easy Installation!
•No Negative Effects on Accessories!
•Reduces Wear on Accessories!
•Improves Fuel Economy!
Installation: Simply remove the belt, then unbolt the factory pulleys.
Install the underdrive pulleys in place of the factory pulleys that have
been removed. Re-install the factory belt or the appropriate new belt if
another size is specified in the instructions. Requires only simple hand
tools and takes 45 minutes to an hour.
Note: 50 States Smog Legal