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Author Topic:   new SS prop won on Ebay

kgregg posted 07-21-2004 10:19 AM ET (US)
I won an Ebay auction for a new stainless steel prop (14 x 19.. same as current alum prop) on Tuesday. This is my first stainless prop.... I've dinged up two aluminum ones in past two years (and had one machined).
How do you like SS prop after having used aluminum (assuming prop size did not change)? Anything you didn't like about SS prop? I expect to get my (lightly loaded) Outrage 19 with Merc 135 into mid 40 MPH with SS prop.
Kevin

Hobie1981 posted 07-21-2004 12:09 PM ET (US)
Kgregg:
SS props are very unforgiving when you hit something. The "load" of the impact gets transferred down the rest of the powertrain. Not to suggest that this does not happen with an aluminum prop, but the aluminum prop generally takes the brunt of the impact, and is reshapen as it takes the "hit". Much cheaper to replace a aluminum prop than have to fix gears/propshaft in your lower unit.
Been there - done that. :-(

Hobie
kgregg posted 07-21-2004 12:54 PM ET (US)
Hobie-
Good points. Having a hub that is designed to break in the event of large impact would save lower unit from a lot of the damage. I will check into these "breakaway" hubs. Kevin
Bigshot posted 07-21-2004 01:04 PM ET (US)
Unless a solid hub(racing prop and would not be 19") you have a "breakaway" hub. You will love the SS. The SS is less forgiving but most damage is done to alum props at idle by bumping bottom. The dings just keep muliplying, SS won't ding as easily. I NEVER run alum props....NEVER.
george nagy posted 07-21-2004 01:18 PM ET (US)
kgregg,
Could you tell me more about your boat? Is that a 135 opti? I'm curious to the performance of a 135 opti on a 18/19 classic outrage.
Hobie1981 posted 07-21-2004 01:45 PM ET (US)
Hi:
I tend to run in shallow water alot, so I run the risk of hitting rocks on a fairly consistant basis.
I also learned to believe my depth gauge. He-He-He.
I did most of my damage at 3500 RPM. Very unforgiving with a SS prop. Luckily was able to have prop shaft straightned.
If you operate in deep water, go with the SS. You'll love as Nick has said.
I'm using a "ProPulse" prop (West Marine) which has replacable blades. I lost maybe 2-4 mph at the top end, but that's not an issue for me. Replacement blades are $18 a pop.
Hobie
kgregg posted 07-21-2004 02:11 PM ET (US)
George-
I have 1991 Merc "Blackmax" 135 2 stroke on my Outrage. It still runs great. I am second owner of boat/motor/trailer. Top speed was in low 40s on glass smooth river with light load and 14x19 prop. Email me with specific questions. Kevin

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Author	Topic: new SS prop won on Ebay
kgregg	posted 07-21-2004 10:19 AM ET (US) I won an Ebay auction for a new stainless steel prop (14 x 19.. same as current alum prop) on Tuesday. This is my first stainless prop.... I've dinged up two aluminum ones in past two years (and had one machined). How do you like SS prop after having used aluminum (assuming prop size did not change)? Anything you didn't like about SS prop? I expect to get my (lightly loaded) Outrage 19 with Merc 135 into mid 40 MPH with SS prop. Kevin
Hobie1981	posted 07-21-2004 12:09 PM ET (US) Kgregg: SS props are very unforgiving when you hit something. The "load" of the impact gets transferred down the rest of the powertrain. Not to suggest that this does not happen with an aluminum prop, but the aluminum prop generally takes the brunt of the impact, and is reshapen as it takes the "hit". Much cheaper to replace a aluminum prop than have to fix gears/propshaft in your lower unit. Been there - done that. :-( Hobie
kgregg	posted 07-21-2004 12:54 PM ET (US) Hobie- Good points. Having a hub that is designed to break in the event of large impact would save lower unit from a lot of the damage. I will check into these "breakaway" hubs. Kevin
Bigshot	posted 07-21-2004 01:04 PM ET (US) Unless a solid hub(racing prop and would not be 19") you have a "breakaway" hub. You will love the SS. The SS is less forgiving but most damage is done to alum props at idle by bumping bottom. The dings just keep muliplying, SS won't ding as easily. I NEVER run alum props....NEVER.
george nagy	posted 07-21-2004 01:18 PM ET (US) kgregg, Could you tell me more about your boat? Is that a 135 opti? I'm curious to the performance of a 135 opti on a 18/19 classic outrage.
Hobie1981	posted 07-21-2004 01:45 PM ET (US) Hi: I tend to run in shallow water alot, so I run the risk of hitting rocks on a fairly consistant basis. I also learned to believe my depth gauge. He-He-He. I did most of my damage at 3500 RPM. Very unforgiving with a SS prop. Luckily was able to have prop shaft straightned. If you operate in deep water, go with the SS. You'll love as Nick has said. I'm using a "ProPulse" prop (West Marine) which has replacable blades. I lost maybe 2-4 mph at the top end, but that's not an issue for me. Replacement blades are $18 a pop. Hobie
kgregg	posted 07-21-2004 02:11 PM ET (US) George- I have 1991 Merc "Blackmax" 135 2 stroke on my Outrage. It still runs great. I am second owner of boat/motor/trailer. Top speed was in low 40s on glass smooth river with light load and 14x19 prop. Email me with specific questions. Kevin