Yamaha SHO ET 18LBS Supercharger Impeller/Boost Wheel

18 lbs of boost @ 8500 rpm. Machined from billet 7075-T651 using a 5 axis cnc machining centre allows a  blade accuracy of .001.Balance to a spec of .009 inch gram and comes completely anodized gold for protection against the elements(corrosion resistant).This new Engine-Tech S/C impeller and backing plate is the lightest on the market (105 grams) and lighter than stock (125 grams) by 20% This will help the clutch longevity. With this new S/C kit and with the Motec, 1000cc injectors you will be just under 400HP.This Supercharger comes with a fuel map that can be loaded in the Motec ECU and setup spec's.

We recommend forged pistons and aftermarket high strength rods.  

May require race fuel for colder temps or just a different timing map from Motec.

This Supercharger wheel and backing plate kit makes the most Hp and boost 17 to 18lb at 8500rpm depending on your intercooler and piping.

Requires: Rising rate fuel pressure regulator, High flow intercooler with 3 inch piping, Motec or a aftermarket ECU.

Important: We recommend that you use these bearings http://www.engine-tech.com/shop/product_info.php?products_id=58

Important a "HSK" blow off valve required to relieve stress off the clutch.