|
Prop For My 150 Merc Offshore
|
| ritzyrags |
Posted on 09/28/11 - 12:53 PM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
The time is right for doing some homework in getting a stainless prop for my Offshore.
The hull will be my Classic 19 Outrage in the 1500 lbs weight range.
No Jack Plate but a fairly high motor emplacement.
http://www.whalercentral.com/userphot...oto_id=820
Note the added part to heighten the transom.
What will be your recommendations.
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| JohnnyCW |
Posted on 09/28/11 - 1:55 PM
|
Member
Posts: 684
Comments:
0
Joined: 08/16/09
|
It always makes me cringe when I see folks set heavy loads like boats and vehicles on concrete blocks. Its a very dangerous business.
|
| |
|
|
| Tom W Clark |
Posted on 09/28/11 - 2:08 PM
|
Member
Personal Page
Posts: 4280
Comments:
7
Joined: 09/30/05
|
What is the gear ratio of the 1997 Mercury 150 Offshore?
What is the recommended WOT range of the 1997 Mercury 150 Offshore?
|
| |
|
|
| ritzyrags |
Posted on 09/28/11 - 4:11 PM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
Seems like it is a 1.87 to 1 ratio and 15 teeth.
If my memory serves me right WOT would be 5200 RPM.
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| Finnegan |
Posted on 09/28/11 - 4:37 PM
|
Member
Posts: 1926
Comments:
16
Joined: 05/02/08
|
Serge - If it's a 2.5 liter with the 1.87 gearing, I would think an 18" or 19" Enertia prop would be about right. Redline is 5500.
I run a 19" Laser II on my 2.0 liter engine, but the Enertia is a more modern design and might be better. Your engine should also be faster.
I note that Whaler is using the Enertia on the new 190 Montauks, a boat with a hull bottom very similar to the old 19.
|
| |
|
|
| Tom W Clark |
Posted on 09/29/11 - 7:17 AM
|
Member
Personal Page
Posts: 4280
Comments:
7
Joined: 09/30/05
|
With the 1.87:1 gear ratio and a 5500 redline, the 14" x 19" Laser II or 14-1/4" x 19" Stiletto Advantage is the prop for that boat.
The Enertia has a lot of blade area for a boat that light. It is not as good an application for that model.
|
| |
|
|
| ritzyrags |
Posted on 09/29/11 - 2:12 PM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
Good to see that we can all come together when important questions do come up.
I would guess that those props would be in the $500 range.?
Thanks for the good input guys.
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| ritzyrags |
Posted on 09/29/11 - 2:18 PM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
Johnny,
I did find your testimony touching.
Blocks were used by necessity and not by choice.
The setting is rock steady and stable.
I am not doing several refits per year
If you have a supply of stands and would share I am willing to pay shipping.
Thanks for your concerns.
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| Tom W Clark |
Posted on 09/29/11 - 7:38 PM
|
Member
Personal Page
Posts: 4280
Comments:
7
Joined: 09/30/05
|
The Laser II or Enertia will be about $450, with hub kit.
The Stiletto Advantage 4.75 is about $250, with hub kit.
|
| |
|
|
| Tom W Clark |
Posted on 09/29/11 - 7:43 PM
|
Member
Personal Page
Posts: 4280
Comments:
7
Joined: 09/30/05
|
This 14-1/4" x 19" Stiletto Advantage II is actually hubbed for a Mercury motor.
It's used, and it's the old style rubber hub but it is otherwise exactly the same propeller as a new Advantage 4.75
http://www.thehulltruth.com/parts-for...-prop.html
|
| |
|
|
| ritzyrags |
Posted on 09/30/11 - 7:53 PM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
Thanks for all that priceless info Guys
So much to do
So little time to do it all..
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| sosmerc |
Posted on 10/01/11 - 5:01 PM
|
Member
Posts: 16
Comments:
0
Joined: 06/07/09
|
I have a like-new Michigan 14 1/8 X 19 that I tested on my 18ft. Ventura with 3.0 litre 200 DFI.
3000 rpm.....28.7
3600 rpm.....36.8
4000 rpm.....40
5000 rpm.....49.4
5600 rpm.....55
All speeds gps
Flat water
water temp 62.4
bimini top up
2 passengers
13 gallons of fuel onboard
engine mounted 2 holes up
$275 without hub plus shipping
Recommend Flotorq III hub, though you can use Michigan's XHS hub system or any other Flotorq compatible aftermarket hub system.
The HighFive 19 I tested was not nearly as efficient, but it was the smoothest of all props I have tried.
Tempest Plus was by far the fastest, but it was not very smooth at mid-range. Once you have run a 5 blade HighFive
you will think everything else has a vibration 
sosmerc |
| |
|
|
| ritzyrags |
Posted on 10/01/11 - 7:51 PM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
I have been remiss in the fact that I did not mention that my outboard and leg bought as a unit is a counter clockwise rotation.
It does complicate things a bit as far as choices.
Me Bad.
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| Tom W Clark |
Posted on 10/01/11 - 8:57 PM
|
Member
Personal Page
Posts: 4280
Comments:
7
Joined: 09/30/05
|
Well then, you can make good use of my counter rotation 14" x 21" Mercury Offshore (aka VenSura) four blade propeller I have for sale. I'll deliver it to Canada for $150.
|
| |
|
|
| ritzyrags |
Posted on 10/02/11 - 8:07 PM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
If that include shipping
I think that I am tempted.
How does it stack against the "ideal Stiletto 11 Prop?
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| Tom W Clark |
Posted on 10/03/11 - 8:27 AM
|
Member
Personal Page
Posts: 4280
Comments:
7
Joined: 09/30/05
|
FYI, when someone says they will deliver something for a price, that means the shipping is included in the price.
If top speed is your ultimate goal, the Stiletto will be better but will cost twice as much.
|
| |
|
|
| Finnegan |
Posted on 10/03/11 - 4:17 PM
|
Member
Posts: 1926
Comments:
16
Joined: 05/02/08
|
A 21" prop running through 1.87 gears is good for 55-56 MPH. I don't think a 19 Outrage will go that fast with a 150 on it. At least mine won't!
I would think a 19" pitch makes more sense.
Here are some good deals on LH Merc props. You may find something you can use here:
http://www.getaprop.com/content-categ...nless.html
Edited by Finnegan on 10/03/11 - 4:33 PM |
| |
|
|
| ritzyrags |
Posted on 10/03/11 - 9:03 PM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
Hey!
I am more than game..
In our locale when someone say that they will deliver
It means that they will show in person.
Small differences but meaning to be in effect a friendly price.
I will be agreeable to buying the prop from you Tom.
Regular US postage would do.
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| ritzyrags |
Posted on 10/05/11 - 6:36 AM
|
Member
Project Albums
Posts: 1003
Comments:
36
Joined: 06/18/08
|
Big thanks to everyone
for helping and giving me hints for solving this small problem.
Thanks Guys.
Dont lie
Dont Cheat
And dont give up.. |
| |
|
|
| Tom W Clark |
Posted on 10/06/11 - 7:26 AM
|
Member
Personal Page
Posts: 4280
Comments:
7
Joined: 09/30/05
|
Larry -- Propellers are not generic pieces hardware. You cannot make speed predictions based on pitch alone without considering the model of propeller being discussed.
There is no way a 21" Offshore (VenSura) will run 55-56 MPH on a Mercury 150 with 1.87:1 gears and a 5500 RPM redline. The Offshore (VenSura) typically runs with 10-15 percent calculated slip so it ought to be good for about 50 MPH on Serge's boat...if it can go that fast. It may not. How fast is your Outrage 19 with it's 1988 Mercury 150?
Unfortunately, if the 21" Offshore (VenSura) is too much then the 19" Stiletto Advantage will be too much also as they will turn about the same RPM. The 19" Laser II *might* work because it allows more RPM than the Stiletto Advantage.
So, a 14-1/4" x 17" Stiletto Advantage or *maybe* a 19" Laser II. If the latter is too much pitch you cannot use a Laser II at all because Mercury does not make that model with less pitch and the Vengeance, which is made in the lower pitches, is not a great prop.
|
| |
|
