For those that have a Vortech or Paxton supercharger installed on their 2011+ Mustang GT, the two companies have announced a new 8-rib drive upgrade designed to prevent belt slippage for high-boost and racing applications. Part #4FQ116-001, the 8-rib drive upgrade allows for maximum belt traction and stability for racing and hard driving while remaining completely street ready and daily drive friendly. Drive conversion contains all necessary hardware and precision machined spacers to go right out of the box and onto the 5.0-liter V8 with existing supercharger systems. OEM quality replacement alternator pulley, water pump pulley, idlers and crank damper pulley are all included. A* drive pulley measuring 3.47? diameter comes standard, with numerous other pulley sizes also available for sale separately.
Optional Supercharger Pulley Sizes (May also require alternate belt drive length):
- 2A038-380 3.80? 8-Rib Supercharger Drive Pulley
- 2A038-370 3.70? 8-Rib Supercharger Drive Pulley
- 2A038-360 3.60? 8-Rib Supercharger Drive Pulley
- 2A038-347 3.47? 8-Rib Supercharger Drive Pulley
- 2A038-333 3.33? 8-Rib Supercharger Drive Pulley
- 2A038-315 3.15? 8-Rib Increased Traction Profile Supercharger Drive Pulley
- 2A038-312 3.12? 8-Rib Supercharger Drive Pulley
- 2A038-300 3.00? 8-Rib Increased Traction Profile Supercharger Drive Pulley
- 2A038-295 2.95? 8-Rib Supercharger Drive Pulley
- 2A038-285 2.85? 8-Rib Increased Traction Profile Supercharger Drive Pulley
- 2A038-280 2.80? 8-Rib Increased Traction Profile Supercharger Drive Pulley
- 2A038-275 2.75? 8-Rib Supercharger Drive Pulley
- 2A038-270 2.70? 8-Rib Increased Traction Profile Supercharger Drive Pulley
[Source: Vortech/Paxton]