This high output water pump is specifically designed for areas of the country that have extreme summer temperatures or for race track applications. Naturally upgrading your vehicle for more efficient water flow, and increasing pump reliability is always a plus for any driving situation. In a racing situations excessive engine temperatures will reduce engine longevity and reliability. The engineers at EMP/Stewart components have developed an aftermarket water pump that improves water flow both in volume and output pressure. EMP/Stewart has incorporated some major design changes that should all but eliminate water pump failure. Those changes include, an upgraded stainless steel impeller that replaces the factory plastic unit. Larger bearings and impeller shaft for extended bearing life, along with a larger, higher quality seal to reduce seal failure. The redesigned impeller housing reduces the chances of water cavitation by properly organizing and channeling water flow into the pump impeller.

What is Cavitation???

Cavitation is similar to spinning your tires during hard acceleration, only it's occurring in water. This is a common occurrence with high-powered speedboats, when the propeller is rotating so fast that the forward motion of the boat is not allowing the propeller blade to grab a clean supply of still water. In the case of water pump the water supply surrounding the impeller begins to spin at the same speed as the impeller blades. This creates a pocket or layer of rotating water around the water pump impeller. When this occurs the impeller has lost traction within the in coming water supply. If this continues the water begins to overheat and boil, resulting in a failure of the factory plastic impeller.

Cavitation is more common to occurrence at higher R.P.M. This is why spinning the water pump faster does not always increase water flow! Water flow and volume are more a result of impeller design than R.P.M. This is why the EMP/Stewart water pump increases water flow by as much as 15%.

Note: Includes New Seal

MSRP $232.25 Your Price: $156.95 Quantity: