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Prop clearance specs?
And you like it? How does it compare with a regular prop?
they do have a 17 in 3 & 4 blades that'd fit / work for me. -josh On Thu, 17 May 2007 02:32:35 GMT, Jack Redington wrote: Josh Assing wrote: Just out of curiosity. What rpm are you turning at wot with the prop you have? And what engine do you have? 4100 RPM -- should be 4400-4600 That's in a PERFECT day.. flat water, no weight, etc etc etc. Hole shot sucks. 5.7 gm based mercruiser (350ci) Alpha1 1.47ratio, 19" pitch 3 blade Regarding the prop -- yes; I can find a 14" 17pitch prop; but they're on the cheaper side of performance... When I get into 4 blades, they seem to get bigger as the pitch is decreased. I'm sure I'll find it.. the prop shop said they wouldn't charge me much to take some off the edge if I need them to; so I'll probably go with an aluminum and have them shave it if needed. -j I am running props from these guys. http://www.propcopropellers.com/information.htm Since you have a merc http://www.propcopropellers.com/mercruiser_Props.htm they use a traditional rubber hub. Good Luck Capt Jack R.. |
Prop clearance specs?
On Wed, 16 May 2007 20:35:58 -0700, Josh Assing
wrote: And you like it? How does it compare with a regular prop? they do have a 17 in 3 & 4 blades that'd fit / work for me. Not sure if I mentioned this before but my old 24 footer with a 5.7L was very similar to yours. It was fine with either a 3 bladed 15 x 17 or a 14 1/2 x 17. On balance I liked the 14 1/2 slightly better. |
Prop clearance specs?
capt_jack wrote:
I am running props from these guys. http://www.propcopropellers.com/information.htm What do they mean by their web page statement "you also get virtually unbreakable cushion hubs and the strongest in the industry" ??? I think that would worry me a little. (I've always counted on my hub, since the days of shear pins, to sacrifice themselves for the protection of my drive train parts & pieces) Rick |
Prop clearance specs?
Josh Assing wrote:
And you like it? How does it compare with a regular prop? they do have a 17 in 3 & 4 blades that'd fit / work for me. -josh I had been running the traditional merc props before I went with these guys. So that is the only type I can really compair them against. Finish is excellent and they are very smooth running. On my current bowrider I have used their 19 inch 14.5 aluminum and currently have a stainless of the same size. The boat is a Crownline 225 w/5.7 efi rated at 280hp w/a Alpha genII leg. This give the boat good hole shot for skiiers and the boat tops out in the 50's on the speedo. That is alot faster then I care to run it. To me the hole shot is more important. They are made locally in Georgia, thus they are not cheep a imported type. I will switch back to the aluminum if we have a dry summer as predicted and the lake get as low as it did last year. I like the traditional rubber hub over the merc plastic core type. But that I guess is just a personal preference. I really can't think of why I would try anything else. I hope this helps, good luck on your search. Oh the local Bass pro Shop carries them. But I have always purchased mine direct at the boat show and saved a few bucks. On another note, When I had a Crownline 210ccr w/5.0LX merc I had tried a four blade as well. It was a 16 as that was the smallest diameter that merc carried at the time. All boats are different so it is hard to say if the results would be even close. But it tended to made the stern run higher resluting in a rather flat running angle on this boat. So I went back to a three blade. since the boat had tabs It was easy to bring the back up if the cod=nditions made it desireable. Capt Jack R.. On Thu, 17 May 2007 02:32:35 GMT, Jack Redington wrote: Josh Assing wrote: Just out of curiosity. What rpm are you turning at wot with the prop you have? And what engine do you have? 4100 RPM -- should be 4400-4600 That's in a PERFECT day.. flat water, no weight, etc etc etc. Hole shot sucks. 5.7 gm based mercruiser (350ci) Alpha1 1.47ratio, 19" pitch 3 blade Regarding the prop -- yes; I can find a 14" 17pitch prop; but they're on the cheaper side of performance... When I get into 4 blades, they seem to get bigger as the pitch is decreased. I'm sure I'll find it.. the prop shop said they wouldn't charge me much to take some off the edge if I need them to; so I'll probably go with an aluminum and have them shave it if needed. -j I am running props from these guys. http://www.propcopropellers.com/information.htm Since you have a merc http://www.propcopropellers.com/mercruiser_Props.htm they use a traditional rubber hub. Good Luck Capt Jack R.. |
Prop clearance specs?
On Fri, 18 May 07, gfretwell wrote:
I am not sure I have ever seen a rubber hub really save anything by spinning loose. In all my years or running outboards and I/Os, I've spun one hub (stainless). Other hits have resulted in bent blades (bents were aluminum). Never had drive train damage of which I'm aware. But I've had hits that, surprisingly, didn't cause any damage even to the prop. I don't know if I should thank the flex of the hub for that or not but it seems so. Whether a hub actually prevents damage or not, it's *supposed* to. And that's why I was surprised at the wording (the meaning) on the web page. Rick |
Prop clearance specs?
Thanks for the info -- I contacted them & had an almost immedeate response -- good customer service there... I was a bit hesitant as there website looks a bit cheesy and I don't (personally) know anyone running one. I'll probably end up buying one of there's, if, for nothing else, to try something "different". Good point about the tabs & a 4 blade -- I have tabs too. The BlueWater is a a really stern heavy boat, so I think any stern lift would be good, but it does plane out and I only use the tabs to level the ride (side to side) or tuck the bow down when going slow (it falls of a plane easily at lower speeds) I've decided to go aluminum over SS because of the weight & I'd rather loose a prop than bearings or something (not to mention the price). I figure at the price of aluminum's (even the propco one) I can buy a 3 and 4 blade cheaper than a SS and compare the two; and keep one for a 'backup' prop. I contacted the previous owner and he had found the "original prop" I picked it up -- hugely beat up 3 blade 17" pitch... He went with the 19" SS "becuase they don't flex at high speeds" and "I wanted to go faster". He clearly didn't understand how things work -- especialy since the prop only pushed the boat 40 mph or so -- I don't think the flex/performance issue of a ss over alum. is that great. Thanks again -josh On Fri, 18 May 2007 02:55:11 GMT, Jack Redington wrote: Josh Assing wrote: And you like it? How does it compare with a regular prop? they do have a 17 in 3 & 4 blades that'd fit / work for me. -josh I had been running the traditional merc props before I went with these guys. So that is the only type I can really compair them against. Finish is excellent and they are very smooth running. On my current bowrider I have used their 19 inch 14.5 aluminum and currently have a stainless of the same size. The boat is a Crownline 225 w/5.7 efi rated at 280hp w/a Alpha genII leg. This give the boat good hole shot for skiiers and the boat tops out in the 50's on the speedo. That is alot faster then I care to run it. To me the hole shot is more important. They are made locally in Georgia, thus they are not cheep a imported type. I will switch back to the aluminum if we have a dry summer as predicted and the lake get as low as it did last year. I like the traditional rubber hub over the merc plastic core type. But that I guess is just a personal preference. I really can't think of why I would try anything else. I hope this helps, good luck on your search. Oh the local Bass pro Shop carries them. But I have always purchased mine direct at the boat show and saved a few bucks. On another note, When I had a Crownline 210ccr w/5.0LX merc I had tried a four blade as well. It was a 16 as that was the smallest diameter that merc carried at the time. All boats are different so it is hard to say if the results would be even close. But it tended to made the stern run higher resluting in a rather flat running angle on this boat. So I went back to a three blade. since the boat had tabs It was easy to bring the back up if the cod=nditions made it desireable. Capt Jack R.. On Thu, 17 May 2007 02:32:35 GMT, Jack Redington wrote: Josh Assing wrote: Just out of curiosity. What rpm are you turning at wot with the prop you have? And what engine do you have? 4100 RPM -- should be 4400-4600 That's in a PERFECT day.. flat water, no weight, etc etc etc. Hole shot sucks. 5.7 gm based mercruiser (350ci) Alpha1 1.47ratio, 19" pitch 3 blade Regarding the prop -- yes; I can find a 14" 17pitch prop; but they're on the cheaper side of performance... When I get into 4 blades, they seem to get bigger as the pitch is decreased. I'm sure I'll find it.. the prop shop said they wouldn't charge me much to take some off the edge if I need them to; so I'll probably go with an aluminum and have them shave it if needed. -j I am running props from these guys. http://www.propcopropellers.com/information.htm Since you have a merc http://www.propcopropellers.com/mercruiser_Props.htm they use a traditional rubber hub. Good Luck Capt Jack R.. |
Prop clearance specs?
If you are really worried buy one of those disposable plastic props
and plenty of extra blades I've not run aground but I did hit something submerged (didn't notice it until I tried to reprop) and it broke the anti-ventilation plate. Because of this, I looked at the plastic/composite props (piranha etc) -- while the idea is appealing, even the piranha site's reviews made me decide to go with aluminum over there's for performance reasons. -j |
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