Pure Motorsport Adjustable Cam Pulleys

A pair of adjustable cam pulleys for all F4R engines.  Beautifully machined from aircraft grade 7075 aluminium alloy and hard anodised for anti corrosion and wear protection.

Adjustable cam pulleys allow quick changes in cam timing to both set the initial cam timing accurately and then quickly swing the cams to optimise cam timing on an engine dyno or rolling road.

These feature:

adjustment window showing accurate cam pulley position with one degree increments

a six bolt clamping arrangement for maximum protection against slippage.

outer belt guide for added security

minimal run-out for ultimate balance and durability

very robust design

dowel hole positioning to suit Cat Cams

Fitting guide here