Slip numbers with Promax prop's on XB21 ?

[fishnfireman]

Anyone run the numbers on there XB21 running a ProMax..?

[xb03fs]

My numbers are higher than my Hydromotive numbers were.. i seem to get 8-9% using stamped
pitch even after having them tightened up

I feel maybe the older ones may have/must have been steeper as when they first came out people
claimed they were stiff...compared to my old Hydromotive’s they seem light on pitch...

[mittenbass]

For my 30p Promax, slip is 7% if you enter the pitch as a 30 and 10% if you enter the pitch as a 31 (you are supposed to add 1 inch to the stamped pitch for cupped props as per the instructions).

[NOTGSXR]

My magic 28 (+1 for cup) slips out around 5%... 1.75 6070 @ 90.4

[xb03fs]

My magic 28 (+1 for cup) slips out around 5%... 1.75 6070 @ 90.4

and what speed and rpm did your 30P run?

[tritontr21]

For my 30p Promax, slip is 7% if you enter the pitch as a 30 and 10% if you enter the pitch as a 31 (you are supposed to add 1 inch to the stamped pitch for cupped props as per the instructions).

Exactly what mine runs either way you figure it

[NOTGSXR]

and what speed and rpm did your 30P run?

Really only ran it once without the ring to 91.8 @ 5970.. 91.7 @ 6070 one run.. did not have good water and did not play with heights.