3 blade or 4

[steplift20]

so what im hereing is that the prop is the correct size and its the tack thats giving wrong reading, well i will serently look into that and i will get back to you and let you know what the outcome is thanks for all the help
this problem will get correccted for sure

[smokeonthewater]

we are not certain of anything yet but we feel that the logical next step is to verify rpm and gps speed.

My calculations came up with a lower pitch prop but that would raise rpm's..... The only thing we can say for sure is that your stated rpm, speed, pitch, and engine do not match up.... there's a skunk in there somewhere and we need to find him.

THEN we can recommend a prop for ya.

[smokeonthewater]

we are not certain of anything yet but we feel that the logical next step is to verify rpm and gps speed.

My calculations came up with a lower pitch prop but that would raise rpm's..... The only thing we can say for sure is that your stated rpm, speed, pitch, and engine do not match up.... there's a skunk in there somewhere and we need to find him.

THEN we can recommend a prop for ya.

[Stinky_Hooker]

I did the exact thing you are considering on my 18 and did not like it. I had a new 4 blade stainless given to me. I lost about 6mph top end with a little better whole shot. It went in the bow for a spare and my 3 blade Stilletto went back on the motor.