A beautifully CNC machined underdrive crank
pulley by VAC.
Machined to exact tolerances and hard anodized for durability.
When every last bit of reliable output counts on the track, get our
pulley to insure the lowest parasitic loss.
Image 1: Overview
Image 2: Front
Image 3: Back
Image 4: OPTIONAL, adapter to use Gilmer drive (+$85, add
above)
This pulley is designed featuring a step on the back side to
easily accept our crank trigger rings for your standalone ECU
install, whatever manufacturer you are using.
- We recommend this pulley not be used on any street car, race
use only.
- It can be used in conjunction with our Underdrive pulley
kit, but only on very high revolution S14s
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