overpropped or???

[wutevvvver]

Hi all,
I am a noob so bear with me. I have an 86 Stratos 180 VT (tunnel hull) with an 89 200XP Evinrude. Skyjacker manual jackplate. I know the boat is over motored slightly. The prop I have on is a Shooter SS 13??27pp 4 blade. Here is the issue, WOT I'm running around 4500 RPM and porpoising with the motor trimmed up or down or anywhere in between. A whale tail improves the bouncing but not RPM's. I guess what I want to know is, would a different prop improve the situation? If so, what pitch?

 

[Texasmark]

Re: overpropped or???

Look at the first entry (right now it is) "What You Need to Know About Props".....to get your answer.

Mark

 

[PrinceValium]

Re: overpropped or???

If all you are trying to do is stop porposing try some smart tabs....there are other benefits to the tabs as well.

 

[jestor68]

Re: overpropped or???

Smart Tabs-no. A 22 pitch 3 blade Raker or Laser-yes.

You want 5500 rpm at WOT.

 

[wutevvvver]

Re: overpropped or???

Thanks for directing me to that thread Texasmark. That is very useful indeed! Thanks for your input too Prince and jestor, I will consider them both. However, like jestor pointed out, the WOT should be much higher RPM's than what I currently get. Hopefully soon I can white-knuckle across the lake!