Setting up a 25 motion

[Flightrisk]

Hi just finish rigging my new to me 25 motion with twin 300xs with the DBR kit. I’m running 34x15 3 blade cleavers but getting to the limiter every time I get it to about 105.

Knowing I need to get 4 blade but just wanting to get some of you guys opinion on what pitch and diameter should i look for as I would be buying and would like to try and get it right?

Thanks in advance for your help

[caseyowens]

I run 15 diameter on my 25. i would stay with 15 or better. I just redid my boat and iv'e been adjusting motor height and so forth. have you tried bringing the motors down a lil? where are the prop shafts in relation to the bottom of the boat? been looking for a set of 4 blades to try but have had no luck.

[needrock]

I run 15 diameter on my 25. i would stay with 15 or better. I just redid my boat and iv'e been adjusting motor height and so forth. have you tried bringing the motors down a lil? where are the prop shafts in relation to the bottom of the boat? been looking for a set of 4 blades to try but have had no luck.
Are your motors turning in or out?

[caseyowens]

I have them turning in.

[Davidlake]

Just saw your thread. 300XS on limiters (6300 RPM) calculates about 16% slip at 105. You should be at 8% or less. What is your "X" dimension (center line of prop shaft above hull at motor location)? Have you checked your toe? 4 blade props will not cure that issue. Something else is not set up right. JMO