CRANK + WATER + ALTERNATOR + IDLER
REVO PULLEY KIT S2 |
The Revo Pulley Kit S2 is the lightest and only full engine pulley kit! The kit shaves 5.02lbs. of rotating mass from the stock crank, water, alternator and idler engine pulleys! A total of 65.5% weight loss means less rotational weight and faster revs, transforming a new acceleration experience.
You want results, how about a total engine pulley upgrade! The Revo Pulley Kit S2 includes the crank, water, alternator and two idler pulleys. Shave the weight and gain the throttle response through the reduced rotational mass. Gain the curb appeal of crafted billet aluminum aluminum pulleys on the front of your FA20. We took every pulley into consideration here, anywhere we saw a potential to shed weight we saw an opportunity to design a high performance pulley kit.
SHED THE WEIGHT
Stock Crank Pulley - 4.886 lbs.
Revo Crank Pulley - .810 lbs.
Stock Water Pump Pulley - .990 lbs.
Revo Water Pump Pulley - .565 lbs.
Stock Alternator Pulley - .421 lbs.
Revo Alternator Pulley - .192 lbs.
Stock Idler Pulley (Pair) - 1.366 lbs.
Revo Idler Pulley (Pair) - 1.078 lbs.
TOTAL WEIGHT SAVINGS - 5.02 lbs. lighter and 65.5% reduction in rotating mass
We specifically chose an aircraft grade 6061 T6 aluminum because of its tensile strength and use U.S.A. milled aluminum only.
The Revo crank pulley is precisely crafted using state of the art cnc milling and turning centers. The manufacturing is done in house because we can accurately and consistently control our product.
The Revo idler pulleys feature a high quality double sealed radial ball bearing which is pressed in from the back and held in place with a stainless steel retaining ring. These are built for the long haul.
We didn't like the factory dust shield either, so we machined an aluminum shield to cover the bearing and act as a washer for the pulley bolt.
CAN I REPLACE THE CRANK PULLEY HARMONIC BALANCER?
The harmonic balancer has the sole responsibility to retard or lessen the resonant frequencies that occur during the normal operation of any internal combustion motor. The crank is like a tuning fork for musicians; when the firing cycle hits each cylinder, its like a flick to the tuning fork. So when you see the term "harmonic", it is a literal description of what is occurring to your crank. Your crank is actually flexible, believe it or not, if it wasn't, your engine wouldn't last more then 10,000 miles. It flexes on a microscopic level to absorb the explosion from each cylinder, this flex is precisely what creates an engine's natural frequency. Some vehicle's frequencies are more violent then others due to the architectural layout of the cylinders. For example, a V6 or V8 will have higher resonance because the downward thrust of each cylinder travels through the center-line of the crank in a non-linear pattern; this actually has the ability to amplify the frequency, depending on your RPM. Compare this to an I6 or I4 and you reduce the harmonics due to the linear pulse of the cylinders approach the crank from a single direction. Finally the Flat-4, with force traveling through the crank to opposing cylinders, the frequency is reduced by its own operation. We're not saying that the frequency is completely eliminated! We're saying that of all the engine formats available, a flat-4 is the best candidate for a lightened crank pulley.