rxp 155

[rxpsalonika]

hi from thessaloniki greece.i own a seadoo rxp 155 with metal pump,riva ss wear ring,solas impeller srcd 11/19.rd intake,rd air intake,riva pump wedge,j pipe inox ..by the time i installed srcd 11/19 my rpms drop down at 7150rpms at 60mp,from 7600rpm when it was stock .what seems to be the problem?

 

[Dr Honda]

You Are moving more water. So... same speed, lower RPM's. But... because of that.. you will need more HP to get your RPM's back up, and have more top speed.

 

[rxpsalonika]

and how am i supose to get more power?When i put back my oem impeller my rpms went back at 7600

 

[rxpsalonika]

tell me what to do...:dupe::toetap05:

 

[rxpsalonika]

how about if i install a rivawaterbox?will i gain more hp?

 

[Spade88]

hi from thessaloniki greece.i own a seadoo rxp 155 with metal pump,riva ss wear ring,solas impeller srcd 11/19.rd intake,rd air intake,riva pump wedge,j pipe inox ..by the time i installed srcd 11/19 my rpms drop down at 7150rpms at 60mp,from 7600rpm when it was stock .what seems to be the problem?

Sounds like you need to add pitch to your prop to get it back near the limiter.
Research the net, there are numerous how to sections on prop bending.

It sounds complicated, yet is fairly simple. You can bend it by feel or use what is called a watcon gauge. Increasing pitch adds RPM's and decreasing drops RPM's, 1mm of pitch either way usually nets about 100-130 RPMS.