Prop selection

[cozzmo1970]

I have a bad tracker pro175 with a mercury 90hp. I'm having to replace the prop which was aluminum and 21 pitch. I found a perfect as laser 2 for s hundred bucks but it's pitch is 25. I'm just wondering if that is going to be too big of a jump in pitch and if so is there anything I can do with the vents to help.

 

[flyingscott]

Probably to much pitch for that motor. What was your wide open throttle rpm for the prop you had. To go from Aluminum to stainless you usually drop pitch.

 

[cozzmo1970]

Wot was 5800 At 45 mph using gps not certain about rpm though as the gage might not be accurate.

 

[Bondo]

Ayuh,.... Goin' 4" taller will kill yer motor,.....

 

[steelespike]

Your present setup seems very good.Rpm is a little high but the performance numbers are really good.
No question a 25" is way too much pitch. You may want to check the Turning point Hustler prop in a 21" pitch.