RACE Mazda Rotary Multi Rib Pulley Kit

Designed and manufactured to a high standard right here in Mount Maunganui using aircraft grade 6061 aluminium billet

This kit is designed for all out high RPM engines with maximum alternator and waterpump under-drive, reducing waterpump cavitation & freeing up as much HP as possible. The 5PK belt has significantly more grip and less frictional loss than a Vee belt. Engine idle speed must be 1600RPM or higher 

• No risk of thrown belts, as with single and double Vee pulleys 
• Lightest kit available with a combined pulley weight of 450grams 
• Machined to tight tolerances eliminating runout and wobble 
• Waterpump pulley fits all conventional 12A and 13B waterpumps (does not fit twin distributor, FD, JC Cosmo)
• Alternator pulley fits all 15mm and 17mm shaft alternators (12A through FD) by means of a removable sleeve (included) 
• 35 micron semi hard black anodised for surface toughness and longevity (WP & ALT pulley) 
• 55 micron hard anodised crank pulley (crucial for preventing the front main seal cutting into the pulley) 
• TDC mark etched into crank pulley 

Supplied with OEM quality mitsuboshi belt