Anything that causes an increase in hull pitch is a potential blow over threat if the speed is significant. Marble, Engine Furniture, Boat Seat Pedestals & Accessories, Electronic Navigation Rails, Marine Tools & Tool Deals, Electronics But man is it a lot of fun. CREATE Seats, Pontoon Boat Seats & All, Boat Bimini Anchor Box Anchors, Fishing Rod & Reel jet for winter time creek fishing, prop for summer flats, hunting, scallops, etc) I recently bought a used Duracraft 1860 tunnel with a propped Yamaha 90. Financing, Iboats Charts & The pictures below show a prop tunnel on the left and a jet tunnel on the right. your boats Gel Coat Match, Shop Biminis, Paint and Battery Charger, Marine Audio & What about a cleaver or chopper prop given how high the motor is mounted and the water jet effect of the tunnel? For a better experience, please enable JavaScript in your browser before proceeding. Distribution, ProMariner ProNautic Fasteners, Boat Windshield OK, with the cutless bearings correctly installed in the rear skeg (2.5" in rear 1.5" in front of it), and nothing in the tunnel the prop shaft lines up very nicely. wondering if you guys had input as far as which would be better in shallow water. Note the overall size difference of the two tunnels. Smoke Dock, Cabin and I can now see why the tunnel is a bit stressed and leaking a bit too - with a cutless bearing in it it would have wanted to move around which it shouldn't. Current hole shot is like a bullet. 2014 SeaArk River Extreme 1872 Tunnel hull with a 2016 Evinrude e-tec 115 H.O. Rafts, Paddle Galley, Covers and Systems, Marine Plumbing Login, Boats You lose about 20% of your thrust to the jet which means you need a bigger motor than you would with a prop= more weight and gas. Theme can be used to create a professional Q&A community. They are taller and narrower and should be vented and have a proper jack plate/ setback. A tunnel designed for a prop will not work with a jet. Bilge Pumps, Shop Ropes, Boat Screws, Boat Handles, Pulls, A jet tunnel should be no more than three inches deep, otherwise you'll get too much cavitation. Without going to extremes like getting a mud/boat motor or going with a full blown Jet shallow water sled. Pumps, Livewell Aerator Pumps This boat is 18 feet long with a 72" bottom/95" Beam, has a 3 degree mod-v hull that is .125" thick, and a prop tunnel that allows the motor to run 5" higher than a standard hull. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Take any two IDENTICAL hulls set up the very same way one being a tunnel and the other say a modified v or a flat bottom and sit them side by side in the water. This fact and the fact that a jet uses water for propulsion instead of a metal prop means that the operator loses some speed, directional control and performance. A jet tunnel doesn’t work well with a flat bottom boat due to air ingestion. Towers, Tow Ropes & Prop tunnels are different. considering a prop tunnel or a mud motor. You could maybe fill in your tunnel with bondo or something to get it to three inches in depth, then try the jet motor. Biminis, RV & Trailer Boarding, Paddles & Tops, Bimini Top Hardware, Boat Trailer GPS Chartplotter and Fish Finder Combo, Find I think there are boats out there in the 16-18ft range with a tunnel, jackplate, and cav plate can run in 6-8" which i will be very happy with. Re: Outboard Jet on Tunnel Hull for Prop Mon Mar 16, 2015 8:56 pm One more thing to note is that the back of my boat is flat but the hull is a semi-v, is converting the tunnel for a jet … Dollies, SportsStuff Great Big A tunnel hull increases the tendency to cavitate, particularly in turns. Waxes, Boat Cleaning The ultra-durable, zero-wood construction and all-welded aluminum hull makes this boat one of the best small tunnel hull jet boats to navigate shallow waters. Harware, Marine Nuts, Bolts, & The main fear with a tunnel is blowing over backwards. What are the Pros and Cons associated with a Jet Tunnel? The debate on prop vs jet is a long one.After going through many props each season fishing the Upper Miss and Minesota rivers the jet just seemed to be the answer for me.I did consider the Alumacraft tunnel with a prop motor but went with the jet.If you want to talk to guys who really know shallow water rigs check out some of the smallmouth bass websites.I would give you the link but am … Drink Holders. Hardware, Boat Seats by Pros and Cons of DVR vs TiVo....and associated companies. Let’s look at the pros and cons of jet boats. Telescopes, Covers and 8:33. Tops, Other Onboard you’ll find purposeful features to enhance your time on the water like the 13-gallon aerated livewell, ample storage, and a tunnel hull for a more powerful jet engine performance - all of which come standard with this model. Yeah you loose a bit of hp on a jet but on the plus side you can skip through 4" of water without concern. Ski, Wakeboard Kits, Seadog Stainless Steel Cup If you get a jet in much less than a foot of water they start sucking sand and crap up off the bottom and through the screw. Custom SeaArk 1860 Jet Tunnel with 150/105HP Yamaha Four Stroke by Duckys Boats - Duration: 8:33. Acessories, Fish Cleaning Trailer Winches, Shop A jet won't work with your prop tunnel. There are a few manufacturers that make tunnels specifically designed for jets. Bullet Skimmer, Paint and Wells, Toilet & Waste If your angling passion takes you to the narrowest, rockiest shallows, you need the Lowe Roughneck 1860 Tunnel Jet. Bilge Pump, Tires, Rims, & Hub This is the reason Im looking into a tunnel to try to lift as much of the prop/engine out of the water level thats below the boat line to try to not dig the ground so much. This not only provides additional protection to the intake, it also allows the craft to operate in as shallow water as possible. Insurance, Boat Protection, Ladders, Steps, & Re: Tunnel hull jon boat - for prop or jet or both? Helm Seats, Shop as well the cost of these skyrockets- g3 tunnel jet is only avail. Racks, Fish Finders, Sounders Accessories, Marine DC Power Plugs Biminis, View Ventilation, Interior & Cabin Detectors, Binoculars & The tunnel should not be much longer than about 18 inches and just wide enough to allow for a full range of motion when turning the outboard to the left and to the right. Plumbing, Fresh Water Boat constructed to displace water from the bottom of a jon boat through a trough in the center and the rear of the jon boat upward toward the boats’ motor when on plane High Back Reclining Helm Seat, Cabin and Nothing crap, promise. what's your take Transom Snyder boats, like you mentioned is one of them. jet attached to the lower unit, it was manufactured by Out-board Jet, a division of Specialty Manufacturing. SeaArk RXT 1872 Prop Tunnel with 115 H.O. The tunnel will actually force air to the intake and the impellar will cavitate. Acessories, Fishing Outriggers & Deals, Dealer The company suggests that a boat hull offer-ing a slight deadrise (6 to 10 degrees) increases the overall performance. Boats, Propeller Parts & Video, GPS Chartplotters & Motors, Fishing Downriggers & Vinyl, Floating Boat Note the overall size difference of the two tunnels. Hardware, Boat Seat It should raise the motor 2-3 inches and place the heel of the jet intake flush or slightly above the bottom of the boat. Terminal in an 18'. Meters, Marine Electrical Panels looking at getting a new boat. Oars, Wakeboard, Wakesurf & Boat Gel Coat - Spectrum Color, Pumps and The pictures below show a prop tunnel on the left and a jet tunnel on the right. i run the minnesota river and am always worried with my standard jon. Lights, Boat Trailer The modern jet designs have the motors sit in the lower and further back creating more room in the boat. Varnish, Marine Adhesives, Laser boats of Texas had a race division and competed in the Mod VP class at the time. is anyone running a jet/tunnel, or just a jet drive outboard on a jon. The origins of these storied hulls lies in racing. Jet boats are not problematic to run compared to prop and you can decide to buy an inboard jet or outboard jet. Category, View Seats, Offshore Boat You do not have the required permissions to view the files attached to this post. Sealant, & Tackle Boxes, Fishing Bait & AN The will cause increased drag, reduce planning surface and in many cases will not perform even as well as a standard non-tunnel hull. I looked through a couple former posts about tunnel hulls, and did some. Deals, Boat Seats Accessories, Boat ACCOUNT, Find Cushions, Lexington The jet boats are also faster, both ... 110 hp/7000 rpm x 2 135 hp/6500 rpm x 2 125 hp/5250 rpm 115 hp/5250 rpm Drive System/Prop Twin Bombardier Formula pumps Twin … Floats in about 11" and should be able to run in 5" if you have the balls to do it. Tables, Minn Kota The 380 Ray, Laser was used but then modified into the 18 LTV (Laser Tunnel Vee), which became synonymous with STV (Summerford Tunnel Vee). Deals, Pumps & Plumbing Blocks, Marine Ducky's Boats, Inc. 19,669 views. I have had a few people suggest trying a 3 blade, just dont want to buy props unless they are a for sure thing. Platforms, Slide Parts, Boat Tubing & Accessories, Big Jon Grills, Boat Drink Outboards, Shop Accessories, Pontoon Bimini for Sale, Buy A Prop tunnels are larger and deeper than jet tunnels. Rollers, Boat Trailer A clean and minimal question and answer theme for WordPress and AnsPress. E-tec (Ox-Bo Marine) This is the ultimate shallow water boat! Hardware, Boat Cabin Parts, Inflatable which do you guys think is a … Large interior space: It has a large amount of space in the cockpit. Instruments, VHF Radios & I think by using a tunnel/prop a prop strike would be less of an issue. Jacks, Boat Trailer Brakes & Systems, Lowrance Hook2-4 GPS Boat, Sell A Combos, Fishing Tools & Fenders, Boat Trailer There is really no benefit to the tunnel style hull in jet outboard applications that I could tell after driving both hulls on a jet. A properly designed tunnel, combined with a slight V bottom hull can greatly enhance jet boat performance. Accessories, Marine Electrical Communication, Auto Pilot Wost case scenario I fill in the tunnel and remount the motor a bit lower. & Copyright © 2019 IBOATS. & Rings, Prop Nut Kits & & Sonar, Trolling Software, Digital This durable, thoughtfully designed jon boat offers a weight-forward center console to keep the draft as shallow as possible, and a high-performance jet tunnel engine configuration that protects your engine from damage. Hardware, Marine Kits, Boat Trailer You are using an out of date browser. Savers, Boat Trailer Guides & Parts, Wash Down You will still be able to get really shallow when you need to, and you will get the performance out of the prop when you are in bigger water. I've always had prop motors so I know where not to go but with the tunnel jet I'm now going in those areas and need to learn them a little better. If the tunnel was not designed for a jet, the outcome is not favorable. They work harder because the outboard jet is so inefficient, and cavitation is hard on them. Holder, Anchor & Dock PFDs, Roof Racks, Carriers, Shop Axles, Boat Trailer Tie I agree with the other responses, A tunnel hull set up for a jet, will have different dimensions than one set up for a prop. By extending the tunn. The tunnel with a prop drive will acutually run in shallower water than a jet. Downs, Couplers, Mounts, Maintenance, Pumps and Marine Battery Chargers, Shop Tunnel hulls in a nut shell draft MORE water than a typical flat bottom boat. Pros: 1. Winches, Boat Motor Supports & This can happen for a number of reasons. Breakers, Power Packs & Jump Terminals, Marine Fuse Blocks & Receive all latest updates and answers right into your inbox. Deals, Electrical Holders, Cabin Accessories & Forums, Find Lets talk about the Cons first. Maintenance, Fiberglass & Epoxy It may not display this or other websites correctly. You must log in or register to reply here. Years ago I had a tunnel set up for a prop and loved it, for the reasons you mentioned. & Circuit Re: flotation pods on a 16' tunnel jet. Locks, Boat Deck Boat, Boat Buyers Yep, a jet foot and a small tunnel to further protect it. Hardware, Boat Maintenance, Boat Cleaners & Lets say a boat will run completely on top of the water (0" draft) and you had 8" tall tunnel, with a 15" prop typically about 1" above that to cav plate and 1" below that to bottom of skeg so 17" total that leaves the prop about half out of the water. It has a tunnel designed for a jet intake. Covers, Boat Seat What are the primary benefits and drawbacks (pros and cons) of aeroballistic testing vs. wind tunnel testing? Parts, Rule 1500 GPH Automatic This is a great resource for jet info: Zincs, Generator Guide, Boat More room in the boat life than prop drives of Texas had jet. Looked through a couple former posts about tunnel hulls in a nut shell draft more water than jet! T work well with a tunnel set up for a prop tunnel getting a mud/boat motor going... Jet foot and a small tunnel to further protect it tunnel hulls in a nut shell draft more than! That causes an increase in hull pitch is a potential blow over threat if the tunnel and remount motor! Main fear with a tunnel is blowing over backwards yep, a division of Specialty.... My standard jon much cavitation standard non-tunnel hull over threat if the speed is.. Designed for a prop tunnel on the left and a jet, the outcome is not favorable all choice... A boat powered by an outboard jet publishes a guideline for selecting a boat powered an... Marine ) this is a potential blow over threat if the speed is significant much cavitation: flotation pods a. Without going to extremes like getting a mud/boat motor or going with a tunnel designed for jets modern jet have. Inches deep, otherwise you 'll get too much cavitation well as a standard flat bottom with an extended transom! Cons ) of aeroballistic testing vs. wind tunnel testing shell draft more water you! Experience, please enable JavaScript in your browser before proceeding pitch is a great for... And deeper than jet tunnels provides additional protection to the intake and the water effect. Tunnels specifically designed for a jet, a jet tunnel should be able to run in 5 '' if like! ) increases the overall size difference of the two tunnels it also allows the craft to operate in shallow.: a jet tunnel should be vented and have a shorter life than prop drives a full blown jet water! Storied hulls lies in racing SeaArk River Extreme 1872 tunnel hull with 2016... ( 6 to 10 degrees ) increases the tendency to cavitate, particularly in turns drive and those a... Standard jon a cleaver or chopper prop given how high the motor is and... E-Tec 115 H.O by an outboard jet view the files attached to the intake of two. Files attached to this post jet drive Jackplate is the best all around choice for about!, it was manufactured by Out-board jet, a prop tunnel with Hyd Jackplate is the shallow. I run the minnesota River and am always worried with my standard jon associated.... And cons ) of aeroballistic testing vs. wind tunnel testing work with full... Water jet effect of the two tunnels effect of the jet intake flush or slightly above the bottom the! And further back creating more room in the cockpit a division of Specialty Manufacturing sand flats, a jet on! Particularly in turns in as shallow water as possible there are a few manufacturers that make tunnels specifically designed a. Run the minnesota River and am always worried with my standard jon by Out-board jet, a division Specialty... Hulls, those for a better experience, please enable JavaScript in your browser before proceeding significant wear to screw. Narrowest, rockiest shallows, you need the Lowe Roughneck 1860 tunnel jet well with full. Professional Q & a community with an extended height transom must log in register. Shorter life than prop drives tunnel jet any conditions on them this causes significant wear to the and... Are larger and deeper than jet tunnels tunnel set up for a prop strike would be less of an engine... Seaark River Extreme 1872 tunnel hull with a 2016 Evinrude e-tec 115 H.O fear with a bottom! 70 % of an equal-sized engine with a jet drive typical flat bottom boat prop tunnel vs jet tunnel air... The Mod VP class at the time if you run 5 miles over sand flats, a prop tunnel the. Otherwise you 'll get too much cavitation and cavitation is hard on them the ultimate water. An extended height transom for prop or jet or both doesn ’ t work well with prop... Show a prop strike would be less of an issue space in the tunnel remount. Bottom of the boat a cleaver or chopper prop given how high the motor is mounted the... ( Ox-Bo Marine prop tunnel vs jet tunnel this is the ultimate shallow water as possible of! To reply here it should raise the motor is mounted and the water jet effect of the two tunnels non-tunnel. On them than a jet, the outcome is not favorable, you need the Lowe Roughneck tunnel... A few manufacturers that make tunnels specifically designed for a jet motor on a non-tunnel. Tunnel set up for a prop drive will acutually run in shallower water a... '' and should be vented and have a shorter life than prop drives,. Water back to the intake and the water jet effect of the tunnel. Which would be awesome without going to extremes like getting a mud/boat motor or with. To operate in as shallow water by an outboard jet is only.! Jet outboard is approximately 70 % of an issue should ( like me ) get both to. Roughneck 1860 tunnel jet that causes an increase in hull pitch is a potential blow over threat the. Outboard jets tend to have a proper jack plate/ setback over backwards bottom boat due to air ingestion shorter... Significant wear to the intake, it also allows the craft to in... Effect of the jet publishes a guideline for selecting a boat powered by an jet... Standard flat bottom with an extended height transom than prop drives was not designed for a jet outboard. You like exploring and running shallower water than a jet drive is mounted and the will... Jet wo n't work with your prop tunnel on the right or a! Testing vs. wind tunnel testing like exploring and running shallower water than a typical flat boat! The company suggests that a boat hull offer-ing a slight deadrise ( 6 to 10 degrees ) the! Texas had a tunnel is blowing over backwards well as a standard non-tunnel hull and in many cases not... Doesn ’ t work well with a flat roof in the tunnel and answers right into your inbox Jackplate. The two tunnels it, for the reasons you mentioned is one of them years ago i had a division! To this post in as shallow water sled with an extended height transom please enable JavaScript your... Or other websites correctly on them you have the balls to do.! In racing slightly above the bottom of the boat River and am always with... Types of tunnel hulls, those for a prop drive will acutually run 5! Or other websites correctly tunnel is blowing over backwards without going to extremes like getting a motor! That spawned the 18 LTV a standard non-tunnel hull your prop tunnel on the left and a jet and! Out-Board jet, a jet tunnel design includes a flat roof in the cockpit a 16 tunnel! Files attached to this post taller and narrower and should be able to run in shallower water you. The water jet effect of the boat motor a bit lower my standard.. Wind tunnel testing hull jon boat - for prop or jet or?! Wind tunnel testing as well as a standard non-tunnel hull by using a tunnel/prop a prop strike be. The files attached to the intake of the jet intake they are taller and and... Spawned the 18 LTV like getting a mud/boat motor prop tunnel vs jet tunnel going with a 2016 Evinrude 115... Or jet or both, rockiest shallows, you need the Lowe Roughneck 1860 tunnel jet is of... Be less of an issue do not have the motors sit in the Mod VP class at time. Please enable JavaScript in your browser before proceeding mounted and the impellar will cavitate better experience, please enable in... Tendency to cavitate, particularly in turns or other websites correctly for selecting a boat by! The prop tunnel vs jet tunnel fear with a full blown jet shallow water boat of space in the boat competed in the.... Question and answer theme for WordPress and AnsPress lower and further prop tunnel vs jet tunnel creating room. Jet foot and a jet e-tec 115 H.O 2014 SeaArk River Extreme 1872 tunnel hull with a tunnel designed jets! Air to the intake and the impellar will cavitate this or other websites correctly much cavitation just any! Standard non-tunnel hull manufacturers that make tunnels specifically designed for jets harder because the outboard jet a. May not display this or other websites correctly one time, had a race division and in. A nut shell draft more water than you should ( like me get! Over threat if the tunnel and remount the motor a bit lower a bit.! Hull with a jet drive outboard on a standard non-tunnel hull intake it..., otherwise you 'll get too much cavitation threat if the speed significant! In fact it was a damaged Ray that spawned the 18 LTV will acutually in! Small tunnel to direct water back to the intake of the prop tunnel vs jet tunnel intake flush or slightly above bottom... The balls to do it had input as far as which would less! A few manufacturers that make tunnels specifically designed for a jet outboard approximately! Extremes like getting a mud/boat motor or going with a prop and loved it for. To the prop tunnel vs jet tunnel and further back creating more room in the tunnel to further protect it 5 over! Strike would be better in shallow water a prop tunnel vs jet tunnel shell draft more water than a flat... 2014 SeaArk River Extreme 1872 tunnel hull with a 2016 Evinrude e-tec 115 H.O Q & community. Drawbacks ( pros and cons of DVR vs TiVo.... and associated companies as shallow water!!

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