I am in the process of purchasing and setting up a new 18' Dyne, and am looking for some advice. From the sounds of it, there are at least a couple more people out there in the same "boat" as me. I have the motor under control, 200 HO Evinrude. Going from experience, I am planning on a 17 pitch prop, but would appreciate recomendations on brand/style/# of blades. I need a trailer, and would like some recomendations. I really like the Hydrodyne Gull Wings, but am assuming they are no longer made. I also would like some input on throttle selection. The boat will get a lot ski team and personal skiing use, so it needs to be durable and be easy to control speed at any speed. Since Airguides are no longer in production, is there a replacement that works just as well? I have also thought of having the second speedo be a GPS speedo. Any comments/recomendations? I am looking into the Teleflex hydraulic steering. Are there any other brands of hydraulic steering worth looking into? Any other info would be appreciated as well. Thanks to 2mercs for setting up this amazing website to keep the Dyne alive!
I'll try to take the questions in order. Prop--I run an uncupped 17 3 blade aluminum on my Johnson 150. "Must-Ski Motors" on this board runs motors like yours and I believe he said his club is running an uncupped 16 OMC/Bombardier prop. Get in touch with him for the exact model. I don't think the prop is particularly critical as long as you get the right pitch and cup. The boats never see enough speed to make it very critical in my opinion. Running an uncupped prop will take some of the low speed "squat" out of it. Trailer--The Hydrodyne wishbone trailers are no longer made. They are cool. Eagle has been making Dyne trailers for years. Tom Miller would have a recommendation. His contact info is under "Tom Miller Boats" in this forum. I doubt if he still has the drawings for the wishbone, but you could ask. Throttle--I think I would go with the Yamaha built in throttle. I have not used it but it has a good reputation. I use an OMC from '97 and it is just ok. The problem with the Evinrude throttle set up is that the cable pushes for opening the throttle. Don't buy any aftermarket cheap cables. You will need the best cable available and the factory cables (new ones) are good. I use a system of return springs on the throttle and the motor to keep the play out of the system. Basically the springs return the throttle so there is zero play in the system. If you so a lot of slow work this system makes it much easier. We can talk on the phone about it if needed. My throttle is more accurate than the best of the inboards after modification. Speedometers--There are some airguides on e-bay right now and there is no substitute that I know of. Gps will not work for slow work in a river with current. An airguide that is run off the pickup on the motor is the best if you need good slow speed accuracy. Seastar steering--There are two Seastar steering systems. The Seastar and the Searstar Pro. The Seastar Pro is made for high performance boats and has Kevlar hoses which are not necessary for your application. Neither is the cylinder. The helm on the pro has fewer turns lock to lock and would be very nice to have. I would go with the Seastar with the upgraded Seastar Pro helm if possible. I would also verify that the Pro helm will give faster steering (less turns lock to lock) before buying. There be more to it than I know. Is the boat really new? Have fun, jim
Yep, 16 pitch round ear with almost no cup. I can find the part number somewhere. I am also trying the new 15 pitch Rebel by BRP before the water gets hard, but I suspect that prop will have too much surface area for a single engine boat, but you never know. The lack of cup loads the engine less and allows the revs to get up in the power band of the motor. Also allows the motor to rev quicker when pulling large numbers. our single 20' Hydrodyne will pull 4 or more footers with that 16 pitch prop. Speed is not a problem. Control: BRP has a new flush mount control out that appears to me to be identical to the Yamaha control. We will have one in our new boat within a month and will let you know how it works out. Personal favorite right now is the Livorsi two lever throttle/shift control because the throttle control has about 6-7 inches of throw to open the motor throttle. It is spendy though and does not mount in a traditional way. Speedos, my ideal would be one Airguide and one GPS. I am putting the new BRP I-Command gauges in with GPS Sensor, it has an analog pointer as well as digital display of speed. You can also power this with a paddle wheel instead of GPS. Steering. Seastar with HC5345 cylinder for your motor. the 1.7 helm is fine I think for a single engine boat. You will probably want a 20 degree wedge kit to mount the helm or a tilt helm (I am not a fan of the Seastar tilt helms) to get your knees under it in an 18 footer. Trailer: Shoreland'r, I think the model is B24, they make nice vertical pole side guides you can get also. I like their composite fenders that never rust as well. Eagle is nice too, but their quality is not what it used to be before they changed hands.
Thanks for the input Jim. You confirmed some of the things I was leaning towards, and gave me some more items to look into. Yes, the boat is going to be new.
If you want the two control system there is an alternative to the Livorsi that has a more conventional mount, but it is pricey: http://www.incontrolequipment.com/products.asp?ProdID=15 jim
Must-Ski Motors, Here is my thinking on the Seastar. The regular Seastar has the 1.7 cu in helm and 5 turns lock to lock. My daughter has this and it is easy to drive but it seems slow to me because my cable steering is 3 1/4 turns lock to lock. The Pro helm is 2.0 cu in and would speed it up a little, but I just checked out their helms and they have a 2.4 cu in helm part number HH-5272. Using this helm in a single engine set up should give about 3 1/2 turns lock to lock and be close to mine which is quick like a sports car. It would increase the steering effort a little at high speed, but a lot of Seastar equipped boats that I see have knobs mounted on the wheel because the steering is so slow. What do you think about this idea? jim Did you find the P/N of that prop?
Thanks for all the great info. I like the idea of quick responding steering. One of the main reasons for wanting a baby dyne is because they are fun to drive, and at over 5 turns, that's going to remove some fun, and make ATB's a bit harder to drive. Jim, sorry for the late response, but I am going through Tom Miller for the boat.
That is the maneuver that you need the fast steering for exactly. Let's wait and see what must ski has to say about it. I would go for it in a heart beat, but I have never tried it and I don't know anyone that has so it would be sort of an experiment. I have driven the Tom Miller 18 with the new deck and it is a great boat. How did you find out about Tom's 18's? jim
