Upgrades, modifications
Upgrade to a factory sealed AGM battery
Jet pump exit nozzle wedges
The pump wedge changes the exit force of the water jet, pushing the rear down and lifting the nose higher.
This generally provides better top speed, but can aggravate porpoising on the shorter hulls unless a longer ride plate or trim tabs are in place
Wedges exist in angles from two degrees to eight degrees
All the other factory 4 degree wedges were plastic.
The 2, 3, 5, 6 wedges were sold separately and not painted
3 Degree Wedge Polaris Part# 2900078
(2 and 3 degree wedges may be close to optimal on the short SL hulls)
Six degree wedge sources Polaris OEM PN was 2900077
Alternate impellers
Alternate and adjustable pump exit nozzles
Replace that old drain plug with a better designHow the jet pump works - Into the PumpAftermarket hull sponsons, how they work - Beach House