Forum: WHALER
  ContinuousWave
  Whaler
  Moderated Discussion Areas
  ContinuousWave: Whaler Performance
  Outrage 22 - Merc 200 EFI - Performance Report

Post New Topic  Post Reply
search | FAQ | profile | register | author help

Author Topic:   Outrage 22 - Merc 200 EFI - Performance Report
littleblue posted 06-01-2010 02:00 AM ET (US)   Profile for littleblue   Send Email to littleblue  
Did some prop testing today. Full tank of fuel, two people (total) on the boat. Lightly loaded.

1993 Outrage 22'
1998 Mercury 200 EFI Offshore

I keep forgetting to look, but I think the motor is mounted 3 holes up. If not 3, at least 2.

The two props I ran were the Stiletto Advantage II 14.25 x 19 and a Mercury Vensura/Offshore, also 14.25 x 19.

Information was averaged between two runs in gusting winds up to 15-20mph.

"Trimmed Up" was w/ the motor trimmed up for about 4 seconds. The last reading (highest rpm/max speed) was w/ motor trimmed beyond that point. I trimmed until I heard it start to cavitate and then went back down.

Here are the numbers in an excel sheet: http://s7.photobucket.com/albums/y277/Triton_38/1993%20Outrage%2022/ ?action=view¤t=Outrage22PreformanceSheet.jpg

Stiletto Advantave II 14.25 x 19 / Mercury Vensura/Offshore

Trimmed Down
2000...9.1..........9.2
2500...13.6.........13.8
2900...18.5......17.4
3000...20.3.........19.9
3500...26.8.........25.8
4000...32.3.........30.5
4500...35.7.........36

Trimmed Up
2000...8............9.5
2500...12.2.........12.9
3000...19.4.........19.7
3500...24.3.........26.5
4000...31.3.........31.7
4500...37...........36.9
5000...41.3.........40.8
5500...46.7.........45.1
5800................47.1


A few notes:

- I know I am able to hit 5700/5800rpm w/ the Stiletto as I did on a calm day, two people, and full tank. I hit 46.9mph doing so.

- Although the speed numbers are comparable, the ride characteristics were COMPLETELY different. I was amazed at how dramatic it was.

The Stiletto makes the boat ride with a very bow high attitude. It's hard to explain...It is not to the point where I would say the boat has a PROBLEM with porpoising, but the bow does wander up and down a bit more than normal when hitting waves. So I suppose it does porpoise a bit, but I have ridden on boats where the porpoising would occur in almost still water w/ the slightest amount of trim added, that is what I would consider a porpoising "problem".

The Vensura/Offshore put the bow down...A LOT. It wouldn't surprise me if the difference was 1ft in elevation change. Even with the motor trimmed up, I didn't feel a lot of the hull out of the water. The boat felt much more planted and the motor seemed to turn easier around the 3000-3500rpm range. I did not have problems with the prop blowing out or losing grip.

I found so bay chop to run through, very close together 3 footers or so. Following the waves I noticed I had to pay more attention to speed as I was getting closer to being able to stuff the bow into a wave than I have been getting used to w/ the Stiletto.

Heading into the waves was interesting. Although the bow was lowered I only lowered my plane speed by about 1mph, this made a condition where I felt each and every wave that I hit. With the Stiletto I felt more like I could ride the tops of the waves instead of going through each one of them.

I was not able to test in Ocean condition, where I think the Offshore would be able to shine a little brighter. With a higher wave height and increased wave period I think the flatter riding hull could really be a benefit.

So right now I am really confused as to which prop is better. I'm thinking that the Stiletto would be better if I had trim tabs on the boat, in which case I could use the tabs to bring the bow down if needed and if not I could ride higher out of the water.

Hope this was helpful and of interest. Your thoughts on which prop might be better and others I might want to try?

littleblue posted 06-01-2010 02:01 AM ET (US)     Profile for littleblue  Send Email to littleblue     
Sorry, the italicized rpm/speed numbers were when the boat was able to get on plane.
littleblue posted 06-01-2010 01:35 PM ET (US)     Profile for littleblue  Send Email to littleblue     
Jim, is it possible to change the title of the thread to include a question about planning attitude and or ride characteristics? Something like,

"Outrage 22 Report - Stiletto vs. Vensura Ride Characteristics"

Thanks.

littleblue posted 06-01-2010 03:04 PM ET (US)     Profile for littleblue  Send Email to littleblue     
Thought of one other note, the Stiletto was actually quicker to plane than the Offshore/Vensura. The Vensura did have all of it's vent holes plugged. If I am able to test the prop again, I'd like to remove two of the plugs to see what happens. Are they easily removed w/o damaging the plugs?

I need to stop replying to my own thread now...

littleblue posted 07-07-2010 03:23 PM ET (US)     Profile for littleblue  Send Email to littleblue     
An update. Yesterday coming in from fishing I hit a new speed record for the boat. I was solo, w/ fishing gear, near full tank. Trimmed way up, going against the wind with lot so air under the hull and I hit 48.7mph. Didn't see what RPM I was spinning though.
L H G posted 07-07-2010 05:08 PM ET (US)     Profile for L H G    
I would be interested in seeing how your boat performs versus Andygere's 22 with 200 E-tec. Both engines are about the same size 60 degree block. I think Andy is running the same Vensura prop. Considering your boat has bottom paint, 49 MPH is a VERY respectable speed for that Mercury 200 EFI.
littleblue posted 07-07-2010 06:21 PM ET (US)     Profile for littleblue  Send Email to littleblue     
Actually, I was running the Stiletto. The Vensura has since been returned to it's owner, I didn't like the way the boat handled with it. Very rough ride.

Also, I have a clean bottom. I think Andy has bottom paint. He has the cuddy and that t-top. Me thinks I win that race.

jimh posted 07-07-2010 06:35 PM ET (US)     Profile for jimh  Send Email to jimh     
When will the wake be held for the straw man?
littleblue posted 07-07-2010 06:55 PM ET (US)     Profile for littleblue  Send Email to littleblue     
Just a prediction.

Post New Topic  Post Reply
Hop to:


Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.