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  Outrage 22' 1988 -RPM's

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Author Topic:   Outrage 22' 1988 -RPM's
fina posted 07-19-2004 03:22 PM ET (US)   Profile for fina   Send Email to fina  
Outrage 22'1988 w/2002 200HP Merc. carb.

Getting just under 5000 RPM's.

What prop. size is ideal for this combo?

Any other reasons why RPM's are Low?

Sal DiMercurio posted 07-19-2004 03:28 PM ET (US)     Profile for Sal DiMercurio  Send Email to Sal DiMercurio     
It would really help if you posted the size prop your now running.
My guess is your running a 15 x 19 prop & the engine is all the way down on the transom & you probably forgot to trim the engine all the way out while at wot.
If thats the case, I suggest you use a 14.25 x 17 3 blade Stiletto & raise that engine up to the 3rd set of holes, then come back & tell us what you have.
Sal
fina posted 07-19-2004 03:36 PM ET (US)     Profile for fina  Send Email to fina     
I knew that you were going to ask current prop. size. I'll check tonight and post.

Trimming doesn't do much and really doesn't move the bow up much either.

fina posted 07-19-2004 03:38 PM ET (US)     Profile for fina  Send Email to fina     
I think it's on the second bolt hole but i'll check that also and post.

Thanks Sal

LHG posted 07-19-2004 05:36 PM ET (US)     Profile for LHG    
You should be running a 19" pitch Laser II, Mirage Plus or maybe a Revolution 4 on that rig. Speed should be around 50 at 5800RPM. All this assumes no bottom paint or tee top.
fina posted 07-20-2004 10:40 AM ET (US)     Profile for fina  Send Email to fina     
I tried to find the size on the prop. last night. It is a Mirage 3 blade and after the serial numbers it says 19P

The engine is bolted through the second whole from the top.

Please let me know your thoughts.

LHG posted 07-20-2004 03:43 PM ET (US)     Profile for LHG    
You might consider raising the engine one more hole, and switching to a 17" Mirage PLUS prop (will have interchangeable hub and round vent plugs - medium size should be used). All this assuming the engine is in perfect working order.
fina posted 07-22-2004 11:52 AM ET (US)     Profile for fina  Send Email to fina     
You had said that a Mirage 19 was a good fit.

Would the raising the engine get me anoter 800 RPM's?

There is some spray that comes out of the sides presently.

Peter posted 07-22-2004 01:29 PM ET (US)     Profile for Peter  Send Email to Peter     
Raising the engine one hole will probably get you 100 RPM. Lowering the pitch down to a 17P will get you about 400 RPM. Doing both will probably net about 500 RPM.

In my opinion, a 19P propeller is a bit on the high side for a 200HP engine (any brand) pushing an Outrage 22. You should try switching to a Stilletto 17P as Sal suggested or a Mirage Plus 17P or Revolution 17P.

Larry, I wonder about the utility of the vent holes when using a lower pitch prop like a 17P on an Outrage. I've done a little informal survey here of newer Brunswick era Outrage and Conquest Whalers with Mercury engines and Mirage Plus propellers and everyone I've seen so far has the vents plugged. Are the dealers here not following the Mercury recommendation?

fina posted 07-22-2004 02:42 PM ET (US)     Profile for fina  Send Email to fina     
Which prop do you recommend and what is the best source?

I appreciate all of the input that I am receiving on this post.

Peter posted 07-22-2004 04:34 PM ET (US)     Profile for Peter  Send Email to Peter     
Try a 17P Mirage. That will be a good comparison to what you already have.
Peter posted 07-22-2004 04:35 PM ET (US)     Profile for Peter  Send Email to Peter     
Try a 17P Mirage. That will be a good comparison to what you already have.
Bigshot posted 07-22-2004 04:56 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Fina would be cheaper to send out and have repitched.
Plotman posted 07-22-2004 05:47 PM ET (US)     Profile for Plotman  Send Email to Plotman     
I agree on dropping down to a 17p.

My old boat has a 200 carbed merc (10 years old, but great compression) that spins a 17p merc stainless prop (unsure of specific model) ~5500.

David

LHG posted 07-22-2004 06:05 PM ET (US)     Profile for LHG    
Peter - Regarding vent holes, I, too, have noticed that the Mirage Plus props come from the factory with solid vent plugs. I think that is because so many Mirage Plus props are used with the Mercury stern drives, which do not use venting. I think the props come from the factory with the most commonly used vent plug.

Mercury says that for most outboard uses, the medium sized vents are recommended, although that is exactly the purpose of the three sizes - to allow the owner to determine how fast he wants the RPM to increase on acceleration. I suspect most dealers just install the props the way they come out of the box, and don't bother to investigate the venting properly.

Two of my friends have now switched to 17" pitch Mercury 4-bladed Vensura props for their Yamaha powered Whalers, using medium sized vents. Both say the boats have never run and accelerated so well

fina posted 07-23-2004 10:02 AM ET (US)     Profile for fina  Send Email to fina     
where is the best place to buy a mirage 17p prop?
Peter posted 07-23-2004 10:40 AM ET (US)     Profile for Peter  Send Email to Peter     
Try ebay. I see Mirage and Mirage Plus in the 17P size there from time to time. Since you have a Mercury, you can use any Mirage propellers.
rtk posted 07-23-2004 02:48 PM ET (US)     Profile for rtk  Send Email to rtk     
Right here in our own little marketplace! : )

www.continuouswave.com/ubb/Forum2/HTML/006686.html

I am selling one with about one hour on it.

For new,

www.kenyonpowerboats.com/mirageplus.htm

Rich

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