Q. Does the number that my impeller is labeled mean that is literally the pitch of my impeller?
A. Not exactly. The numbers refer to the outer blade angle of each impeller blade. Although commonly used in this industry, the word pitch does not apply to a PWC impeller the way it does a boat propeller. Where the pitch on a boat prop refers to the distance the unit moves forward per revolution, PWC impellers use numbers that reflect the outer blade angle, which identify how aggressive the impeller is, and also as stated in the question is a "label" to distinct between other labeled impellers for ease in applying each impeller to a particular watercraft. The number of that angle cannot always be taken literally, because all of the impeller manufacture's today have been known to slightly change an angle or length of the blade to optimize performance, and not change the ID of the impeller because the label of that impeller is already known to perform with certain characteristics on certain watercraft. This is one of the most important reasons that you will benefit by purchasing your impeller from us, and sending your damaged impeller to Impros for service, we understand the differences between each manufacture, and assure the pitch to returned to factory specs- not to that of some type of angle device or boat prop gauge.
Q. Does Impros use correct pitching techniques specific to each brand of impeller?
A. Yes, Impros is proud of our ability to pitch each brand impeller to the manufacture's specific range of blade angle variation. Impros has a master gauge for every stainless steel impeller made, assuring an accurate pitch and uncompromised performance, eliminating common guesswork. Each and every manufacturer builds the impeller geometrically different from one another, and gauges the outer blade angle in a different way. Only a company with experience will accurately understand, manipulate and repair the blades of the impeller to its original state.
