(1.8L DOHC 16V - Polished) Built for the (94-01) Acura Integra... Unorthodox Racing Ultra Street Sets build upon the success of the Ultra Street crank pulleys by adding Ultra Accessory pulleys. Like the Ultra Street pulleys, Ultra Street Sets are CNC-machined from light weight 6061-T6 aluminum billet. Premium 6061-T6 aluminum billet ensures the consistency of the material's strength and balance. Tolerances for each crank and accessory pulley are held to within .001". In addition to the numerous machining steps taken to ensure the crank pulley is the lightest possible design, each accessory pulley is also lighter than the factory piece it replaces and includes lightening holes where possible.Ultra Accessory pulleys are also an excellent replacement for the brittle plastic pulleys found on many late model cars. Premium fit and finish ensures a beautifully matched set you are proud to display under the hood of your vehicle.Unorthodox Racing pulley sets on average can provide gains of 8 to 15 HP and 6 to 10 lbs.-ft. on normally aspirated engines and 10 to 18 HP and 10 to 20 lbs.-ft. on forced induction engines. Higher gains can be realized on vehicles that are modified. These gains are obtained in two ways. First, and most important, is the weight loss. There is an average of 2.7 HP gained from every pound lost off the crank shaft. With the lighter accessory pulleys, as much as 15% to 30% more power can be found. 85% of Unorthodox Racing gains are from weight loss. The rest of the gains are from underdriving, which accounts for about 15% of the total gains. Unorthodox Racing does not push underdriving more than 20% for two important reasons. The main reason is to keep charging systems, air conditioning, ower steering, and water pumps moving fast enough for every day driving. Second, not much horsepower is gained from extreme underdriving.All underdriving is done with the crank pulley, not the accessory pulleys (most applications). This is done so maximum weight loss can
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