UR Evo Crank and Accessory Pulleys

Posted by unorthodox, Apr 16, 2018

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  1. unorthodox

    unorthodox Supporting Vendor

    6
    20
    Joined Oct 30, 2009
    Gainesville, Georgia
    The next new crank pulley and accessory pulleys are for the Evo V thru IX. The crank pulley is part# CS981, the alternator pulley is part#AS981 and the water pump pulley is WS981.

    The stock crank pulley weighs in at a fairly meaty 3.7 lbs for a single 6 rib belt. This Nano-lite stock diameter version weigh in at a svelte .6 lbs. The reduction of rotational weight is over 95%.

    CS981AF.JPG
    CS981AR.JPG

    The stock diameter alternator pulley weighs .43 lbs and the new alternator pulley weighs .008 lbs.

    AS10151.3.AF.JPG
    AS10151.3.AR.JPG

    The stock diameter water pump pulley weighs 1 lb and the new nano-lite version weighs .39 lbs. The outer diameter of this pulley has 3 mil black hardcoat plating to eliminate the potential for wear as the rougher back side of the belt rides this pulley.

    WS981AF.JPG WS981AR.JPG

    We can make these new versions or any version this community might want with as little as a 10 piece group commitment per version.

    All together these pulleys reduce rotational mass by over 98%.

    When we first made the underdrive version of this crank pulley our great friends down at Alamo Autosports ran some before after dyno testing on their stock Evo VIII (1 week in between for ECU learning).

    020910802.jpg

    Quantity - Price Breakdown

    Alternator Pulley (AS981)
    10-19 $100
    20-29 $80
    30+ $70

    Crank Pulley (CS981)
    10-19 $210
    20-29 $190
    30+ $180

    Water Pump Pulley (WS981)
    10-19 $150
    20-29 $130
    30+ $120
     

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