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| I have a Tuffy 1700 EDV tiller with a Merc 60 on the back. I've been running an 11P alum. prop for a few years and I'm not particularly happy with its performace. The prop is now fairly beat up, and I'm considering replacing it with something else instead of having it rebuilt. Any suggestions? What props do others who run 1700's use? I realize this boat is always going to be underpowered (only rated for 60hp, which isn't enough), but I'm barely getting 30mph on a good day and the hole shot is poor. Thanks!
John
Anyone say "screw the rating" and throw a 75 on the back of a 1700 yet? Seems like a great idea to me ... would be an awesome tiller rig. |
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Posts: 32953
Location: Rhinelander, Wisconsin | It isn't a matter of the boat being 'underpowered', it's a matter of what is the legal horsepower allowed on that rig. It rates for 60 Tiller, no choice there, it's the law. I'd run a 12 pitch Vengence if the 11 aluminum gave you any hole shot at all. A 'beat up' aluminum prop will not give you a good hole shot. What are your max RPMs now? If you are nearly maxed with the 11 aluminum, the 12 Vengence will be perfect. Is the Merc a two stroke?
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| Steve, the prop hasn't been beat up forever. Even when it was brand new I didn't get great performance from it. Sorry if that wasn't clear.
The boat handles big water VERY well! But it is on the slow/doggy side and I wish it was a little quicker. I understand the coast guard rating issue; my only point is that a 75hp on a 1700 would make for a heck of a rig! Coast guard rating aside, you couldn't tell me with a straight face that the 1700 wouldn't handle a 75. That coast guard rating is ridiculous.
I believe the RPMs are in the 6500 range, and yes it is a 2 stroke. 2000 model year. 12P vengence seems like a good idea to me. Thanks for the suggestion. |
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Posts: 1936
Location: Eau Claire, WI | John,
Get a hold of Theedz from the board. Send him a private message if he doesn't see this post.
He has my old 1700 EDV with a 60 ELPTO Merc on it. Boat performed just fine with the aluminum prop I had on it. Good hole shot, and it get's low 30's top end. The guy that had it between me and Theedz had a 6hp kicker on it and still had good performance.
I had a stainless prop on it for a while that I had laying around in the shop, sorry I don't remember the pitch on it but suspect it the same as what the aluminum was, and it did a little better but nothing outstanding.
You should expect an acceptable hole shot and to get 32mph+ or - a few GPS with that boat depending on how it's loaded. I ran mine with generally 1/2-3/4 tank of fuel, two Lakewoods boxes and rods. I used the boat for guiding for a season and even with three people it still did ok. |
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| Thanks for the tip, Mark. I've gotten 30, but never any more than that. I'll see if I can find theedz, but I bet I'd have to register to PM him. 
I'm going to check out the 12P vengeance tomorrow in any case. |
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| Hey John, my old 1700 did low 30's with a nice hole shot. I will check what prop is on it, as it is docked at the same place I keep my boat at now. The new owner has an extra 9.9 on it and it did not lose any performance...Ben |
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| Cool, Ben. Let me know what you find out!
John |
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Posts: 32953
Location: Rhinelander, Wisconsin | Check your tach and let me know what you are turning for RPM. Just as a check, 6500 is really high, i think. |
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Posts: 1438
| I checked my prop yesterday.
It's a 13P aluminum on it. Don't know what diameter is, doesn't say on it that I can see.
I like the way it runs once up on plane, mid RPM range at about 25mph. WOT on it is about 32 at about 5100 RPM. That's a tick low, I think. Book shows max at 5500. I'm not exactly happy with the holeshot on mine though. Plows a little and takes a little to get up on plane. Was thinking of a 12P stainless at some point in the future.
Scott |
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Posts: 32953
Location: Rhinelander, Wisconsin | Yup, Theedz, a 12 Vengence will do the job for you, I think. It will flex less and gain you 250 RPM, and run the rig about the same speed with a much better hole shot. |
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Posts: 3518
Location: north central wisconsin | Does the new 1760T have the same rating? With dad looking at a couple used rigs this year, it really has me looking forward to 2007, and getting into a new/er rig(though I'll keep the Brown Streak for river runnin'). I am leaning towards the 681T if I can find one... but am also going to look at the 1760T and its' layout. I wonder which would preform best, hole shot especially. I could care less about top end, but have a limited hole shot window on many of the waters I fish. I agree with above posters, many of the tiller rigs are very underpowered(I currently run one now). They may be maxed out Coast Guard wise, but are underpowered in reality. The same rigs will accept much larger outboards in the console versions and perform to their capabilities. Hopefully some of this will change over time for the tiller lovers like us. |
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| the 1760 tiller is rated to 75hp.
you can check mine out at the PMTT next weekend, Jason. |
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Posts: 3518
Location: north central wisconsin | That is a nice rating. Will check it out. |
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Posts: 686
Location: Tomahawk, Wisconsin | Honestly Jason I really don't think of the term hole shot when it comes to running a tiller. I used to own a 680t with a 60 evinscooter and my bro ran a lund with a 75 Merc, both boats topped at mid to upper 30mph and you crank that handle and they take off and plane out pretty quickly, the rangers have the fuel tank in the rear and the batteries are set up in back as well. With you being back there and all of that weight the hole shot is more of a quick plow to get on plane. They are all nice rigs bro, look around and find a nice 680 for less than 10 g's easy, and it will last you many years and when you do decide to sell it if you take care of it you will get back what you put into it or pretty darn close, that is not the case with alot of other boats that is the truth!!:) |
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Posts: 32953
Location: Rhinelander, Wisconsin | The new 1760 GT will be a quick boat. That hull is fast to plane anyway, and building the 1760 as the 'super magnum' so many were looking for took at least 250# and quite a bit of upper deck freeboard off the boat. Should be a superb ANY water boat for muskies or muli-specie. |
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Posts: 148
Location: Northwest Wi. | I cant wait for the 1760GT!! I too have a 1700GT with a 50hp 4 stoke yamaha ,,,It to is a little doggy on speed (29-empty) a lot less loaded...and poor hole shot, Ive tried different props and still not what I think the boat could do..Got the motor and boat as a package from a now defunct tuffy dealer in the north woods I love the boat and the way Its handles the big water,,my next boat will be a tuffy. |
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Posts: 46
| Don't get me wrong, I love my 1700. It handles big water better than any other 17'er I've been in and fishes VERY well. I'd take it over a 17' alum tiller any day. But it ain't quick by any stretch.
The motor is running at 5500, not 6500 as I wrote earlier. I put on my spare 11p alum prop which is in very good condition and chugged along at 28-29 this weekend. I'm strongly considering the venegeance 12p... 
John |
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Posts: 1936
Location: Eau Claire, WI | John,
You may already be doing this, but... Make sure you are checking your speed with a GPS and not the speedometer in the boat. GPS is the only real way to get an accurate reading.
The speedo's in the boat run off of water pressure from the lower unit of the engine. Once the water line gets a little scum built up inside or dirt in the line they are hardly accurate. Even when brand new they aren't that accurate.
I can tell you that the stainless prop will most likely improve your hole shot, as the blades on the stainless prop will flex much less than the ones on your aluminum prop. |
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Posts: 5874
| What hole is your motor mounted in? If it is all the way down, you may get better performance by raising it up a hole or two. |
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Posts: 46
| I'll check on the hole mount, and Mark I agree with you on the speedo thing. GPS only, and a WAAS reception quality to ensure accuracy. |
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Posts: 46
| You know, I should have done this several years ago. Ha ha ha |
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