Reference

Pump

1 article on pump, covering 4 symptoms and linking 1 spec table. Basis, stated on each: 1 general principle. Reviewed by a racer: 0 of 1.

• What an impeller pitch number actually means

  Pitch is the bite the impeller takes out of the water, and it is the single cheapest change to how a ski feels. It is also the one most often copied off somebody else's setup, where it does not transfer.

  Bolt-on · 4 symptoms