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1995 22' Scarab 260MERC Planing Issues? Trim tabs?

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Old 03-24-2011, 05:00 PM
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Originally Posted by wjb21ndtown View Post
Don't get a whale tale. Those things are useless IMO. It may be helpful to drop down a pitch size in prop. You shouldn't lose much speed, and you may gain something if you can get your RPMs up to 5k. What motor do you have in that thing?

Another option may be to send the props to BBlades to have them labbed. It sounds like you may not be too far off in your prop selection. Some fine tuning may do wonders for your boat/setup.
Its a 260HP MERC
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Old 03-24-2011, 05:04 PM
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http://phoenix.craigslist.org/evl/boa/2222225535.html
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Old 03-24-2011, 05:12 PM
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I have a nice used set of boat levelers ready to go...PM for details
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Old 03-24-2011, 05:38 PM
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Is this your listing, or did you just find it for me? I went online and found out what the motor specs are. 4200-4600 WOT. I am not 100% sure if my tach is correct, but I was running 4500-4800 at the lake the last couple trips. People are saying to go down in pitch, but according to this, I may want to go to a 3 blade prop and go up in pitch. I just need to figure out what pitch I am at right now.
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Old 03-24-2011, 05:57 PM
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The boat came with a 3 blade mirage 23 pitch, the ride better with a 4
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Old 03-24-2011, 06:21 PM
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The boat came with a 3 blade mirage 23 pitch, the ride better with a 4
I have a 4 blade now. According to BBlades a 3 blade is faster, but a 4 blade has more control, so you are prob right about sticking with a 4 blade. Im a newbie. The prob stuff is a little confusing.
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Old 03-24-2011, 06:57 PM
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If your current prop is a 23" and that can run 58 @ 4800, then you should still be able to run 52-54 @ 4800 with a 21". That is assuming your drive gear is a 1.62 and 8-12% slip. A Revolution 4 would be a great allrounder for sure. IF your drive ratio is 1.47 it's a bit different. Then your current slip is 18%, and that is high for that boat, and there might be an issue. By issue I mean the prop you are running now is just plane wrong for the boat, and you should start from scratch and go baseline testing.

Good luck.
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Old 03-24-2011, 07:50 PM
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Originally Posted by A.O. Razor View Post
If your current prop is a 23" and that can run 58 @ 4800, then you should still be able to run 52-54 @ 4800 with a 21". That is assuming your drive gear is a 1.62 and 8-12% slip. A Revolution 4 would be a great allrounder for sure. IF your drive ratio is 1.47 it's a bit different. Then your current slip is 18%, and that is high for that boat, and there might be an issue. By issue I mean the prop you are running now is just plane wrong for the boat, and you should start from scratch and go baseline testing.

Good luck.
The above text is my definition of confusing. I will mention to my boat mechanic though.
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Old 03-24-2011, 07:55 PM
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If you want. pm and i will give you my cell and we can talk scott
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Old 03-24-2011, 08:47 PM
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You can run that 23" when only 2-3 people are in the boat, but you should get a 21" 3 blade for those days you plan on hauling five people around
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