High boost Engine-Tech supercharger impeller for Yamaha 1.8liter supercharged engines. Like all other Engine-Tech supercharger impellers it is machined on a 5 axis machine center, from heat treated 7075 billet aluminum, and anodized for corrosion protection. This impeller comes with a hard anodized billet backing plate to accommodate its larger diameter. This is a drop in impeller so no modifications to the housings are necessary. Weighing a mere 106grams this is the lightest impeller on the market reducing wear and tear on the clutch/shaft assembly. Output is 15+ psi @7700 rpm and an amazing 18+psi @8500 rpm making this the most powerful impeller available for the Yamaha to date. It is available from Hot Products USA.
