PHR - Powerhouse Racing Billet Aluminum Power Steering Pump Pulley ati 95mm Rocker Ratio: Intake: 1

95mm Rocker Ratio:   Intake: 1 Exhaust: 1 Nett Valve Lift:   Intake: 8

better idle and driveability

They can only apply as much drive torque as there is available traction at one wheel

If it has failed

PHR - Powerhouse Racing Billet Aluminum Power Steering Pump Pulley ati 95mm Rocker Ratio: Intake: 1PHR Powerhouse Racing Billet Aluminum Power Steering Pump Pulley SKU: PHR 01011035. PS. M We're happy to offer PHR's Billet Aluminum Lightweight Power Steering Pump Pulley for the 2JZ and 1JZ engines. Precision machined from solid aluminum, this is the finest pulley available. Reduce rotating mass and keep accessory speed where it should be, not underdriven.