Installation is not hard but requires some filling bondo to make smooth surface. We are discontinueing manufacture of all low water pickup nose cone kits. The 80 mph thing for the nose cones is a crock too. Sstv 206 adding nose cone to lower gear case youtube. At 1100 rpm you should have drained a big bucket in a quick minute. If you are looking for a size that is not provided on our site, call our direct line 320 2792236 or email us, and we will assist you to get exactly what you need. Buy outboard motor v6 lower unit gearcase nose cone. Five inlets create less chance of stoppage than anything now on the market. Set the nose cone on the lower unit and press it down. Highperformance outboard lower units boating magazine. Once the nose cone is sitting on the lower unit, step back and check for alignment.
Bonding aluminum nose cone to an outboard lower unit. Choosing the right size and type is critical to getting the most enjoyment for your money. Unfollow propeller nose cone to stop getting updates on your ebay feed. Bobs low water pickup question microskiff dedicated to. We value convenience and knowledge, providing resources like our yamaha outboard maintenance charts, helping you to find the right parts every time. Offering over 40,000 yamaha marine products and all at low prices with same business day shipping on in stock items.
If your boat is too heavy, a nose cone could cause you to lose. Says will really help when you have to raise your engine due to shallow water. This was perfect for this project, because it also fit inside the plastic shoulder of the nose cone. But if any one here wants some of the rest us to help armchair diagnose a problem, i do think we should be given all the facts, in this case that you installed an aftermarket lower unit with low water pickup nose cone which i tend to associate with high performance and racing applications, and are using a used, altered prop. Bobs machine shop outboard v8 nose cone kit factory installed.
Contact your boat dealer before installing a nose cone. Excess thickened epoxy should ooze out between the two surfaces. The low water pickup from bobs really work and are quite simple. Look very carefully for all of them and check a maintenance manual if you are unsure. How to replace the water pump impeller on a mercury optimax 200 hp outboard. Alpha 1 nose cone installation checkmate community. It is advisable to remove the lower gear case from your existing stern drive. Improves efficiency, reduces blow out and slip, at speeds of 80 mph or more. Kit comes complete with almag35 top grade casting, epoxy, hose fittings and instructions. Moeller flushrite boat motor flusher dual water feed, universal, rectangular cup by.
Looking for some opinions, and insight, into the best way to install a bobs nose cone on a gearcase, and any geometry, tweaks, modifications that should be done. Unfollow outboard nose cone to stop getting updates on your ebay feed. This nose cone is constructed of cast aluminum and will fit the front of a stock lower unit to reduce the angle of the gearcase housing, lengthening the transition from the gearcase nose to its trailing edge, reducing the chance of building a vacuum pocket on the side of the gearcase. Travel and fish waters, until now, were unable to be reaches with outboard motors having standard side water pickup gear cases. Installation manual mercury mercruiser bravo one installation manual 90 pages. We commonly say that someone may have an eye for beauty, an ear for music, or a taste for art, and now you can have a nose for speed. Can be attached to the lower unit with epoxy, bondo or similar. Anyone had any experience with bob machine shop nose cone installed on their engine. How to build a hinged hoophouse for a raised bed garden duration. These slicing software packages typically accept 3d cad files with. Cone can be attached to lower unit housing with epoxy, bondo or similar adhesive. Hi everyone, i bought a nose cone on ebay from ron hill.
Bobs solid mounts come in sets for popular outboards, so you can begin to turn an ordinary outboard into a performance outboard easily. Next, i tried printing a boat tail transition similar to. Gain top end performance with teague custom marine add on drive lower nose cones. Manuals and user guides for mercury mercruiser bravo one. Nose cone for more speed 250 ho barnacle bills marine. Added fuel economy will probably not offset cost of part and installation. It is very free and moves front to back about a 1438 inch without the nose cone. I flipped this thing all around using a file to clean it up, and checking wear clearence. I would guess that the increase of water to the prop by installing the nose cone has cut down on slippage between prop and water. This is a brand new hydromotive hydro cone nose cone. Go to the coast frequently and looks like this would be a good addition to my 150 yamaha. Default sorting sort by popularity sort by average rating sort by latest sort by. Does your standard mercruiser lower unit equipped boat top 70 mph.
High performance nose cone with low water pickup nose cone with low water pickup hydro dynamically engineered cast aluminum extended nose cones. What is more apparent when you are running speeds in excess of 80 mph, is the need for a lower unit design that can handle the speeds, and ensure proper water pressure when the engine is running really high. The impeller does get tight when i install the nose cone. Nose cone truck body models are proven to be the most effective aerodynamic design for truck body applications. Replace the standard part of your compatible force trolling motor, or use the nose cone to install a compatible garmin gt model transducer. The bigfoot nose cone is very popular with engines 150 hp and up, and has a proven design. Shallow water pick up nose cones moderated discussion areas. Nose cone for more speed 250 ho barnacle bills marine supply. All instock products ship within 1 business day of order. Please do not buy this or at least not to use with evinrude etec outboard, i almost overheated my outboard thinking it was the pump until i took my outboard to mechanic to have the pump or impeller replaced and he told me my only problem was this earmuff.
Nose cones on outboard and sterndrive lower units are common in the world. But if any one here wants some of the rest us to help armchair diagnose a problem, i do think we should be given all the facts, in this case that you installed an aftermarket lower unit with low water pickup nose cone which i tend to associate with high performance and racing applications, and are. When done right the up side is much bigger not only with the 2 mile an gains you have spoke of. Absolutely destroyed the handling and efficiency of both boats and lost 3 mphs on one of them. When it comes to lower units, bobs machine has a line of nose cones and stabilizer plates that can help you dial in your rig. Learn about propellers, be a hero not a zero, propeller for sale st cloud minnesota boat dealer duration. It requires holes to be drilled that are very close to the oil passages. Center toon streamlined and air trappers at the stern. Bobs machine shop big foot nose cone texas fishing forum. I would guess that the increase of water to the prop by installing the nose cone has cut. Garmin force gt nose cone with transducer mount overtons. This cast aluminum cone is made to fit the front gearcase housing.
Boats flew the bow perfectly wneutral trim wo the cones and both required full up trim to do it after the cones. Looks like you could either install it yourself or have them do it. Nose cone has been proven to be the most effective aerodynamic design across the full spectrum of wind conditions your are likely to encounter. Jun 18, 2012 in addition to pickups on the nose of each, the torpedo projects forward into a sharply pointed nose cone, like that of a supersonic jet fighter. Whether it be outboard hydroplane racing, outboard performance craft tunnel hulls, offshore powerboats, or customized recreational boats, all have factory built speedo lower units, which are very fast, but expensive. I installed them on two different 80 mph boats that i owned. Factory installation of bobs machine low water pickup nose cone includes price of the installationpartspaintetc comes back looking factory. Best top speed has the jack almost all the way down and the engine trimmed almost all the way up. Im actually curious to know what type of metal is the lowerunit made of and also the nose cone. Compatible gt transducers include gt20, gt21, gt22, gt23, gt24, gt40, gt41, gt52, and gt54. Power transom jack, 20 lab finished mirage plus prop. For additional technical support, contact bobs machine shop.
I have some areas i need to run jacked all the way for longer periods than i can so that i wont be tearing up the grass flats. One of them was sized to fit inside of a tube coupler. Just for the peace of mind install a nose cone if you have access to a tig it is and easy job take the time to make sure it is straight with the lower unit. Combined with a slender strut and skeg each with sharp leading edges, this shape slips through the water more easily than the rounded noses found on other outboards.
The plastic on the nose cone is not uniform around the insert the bulhead into the base of the nose cone. Home services factory installation of low water pickup nose cone home services factory installation of low water pickup nose cone factory installation of low water pickup nose cone. Bobs will do the install and i think the fee is probably money well spent. Jan 01, 2020 how to buy and install an outboard motor. Lower units nose cones, stabilizer plates, skegs, etc. The leading edge of the nose cone should be aligned with the rest of the lower unit. The gardening channel with james prigioni recommended for you. I can run jacked all the way up but lose water pressure and get the heat alarm. Most of these parts are listed on pages 7,8,9 which contain scans of pages of the plymouth superbird production planning technical services fleet engi.
This lengthens the transition from the gearcase nose to its trailing edge, thus reducing the chance of vacuum pocket in the side of the gearcase. Nose cone kit contains all hardware for complete installation. Mercury 200 efi outboard cooling problems first of all, the vanes on those impellers are short and tall. Save outboard nose cone to get email alerts and updates on your. I installed on my enchanter a nose cone on the alpha 1, by doing this i droped 600rpms off of top end 4400 down to 3800 still pushing 64mph, 5mph less than my best run. Not to take anything away from iboats but you may get better responses asking this question at scream and fly. I did not know about not letting it come back after cone removal. A transducer replacement kit is recommended if youre rerouting a new transducer through the trolling motor.
However in non race applications dont look for dramatic changes. Nose cones are good for speed and running skinny if you have the right prop. My question is does it really work and how much trouble is it to install. Bonding aluminum nose cone to an outboard lower unit west system. Water is picked up at nose of the added cone and is routed to water pump via hose. How to convert apogees plastic nose cones into boattails. If your boat is too heavy, a nose cone could cause you to lose speed rather than gain it. Im going to install a bms bigfoot nose cone kit for low water pickup and am looking for tips or advise on doing so. Stepbystep instructions on designing and building rockets with boattails. Bonding aluminum nose cone to an outboard lower unit west. Before you install, make sure the outboard has lowwater pickups on the nose cone. If you need a recommendation for which style of nose cone is right for you, please give us a call.
How to install a bigfoot nose cone onto a lower unit. I guess people grow up learning about engines and how to make them more powerful in order to go faster, but often times when it comes to a boat, the hydrodynamic friction of the gearcase is the number one. These are ideal for elevated, semi surfacing xdimensions. Superbird pn 3571 101 nose cone assembly com plete, nose. You can rely on nose cone to always benefit your fuel economy. If you install a jack plate, you should also install water intakes on the outboard s nose cone lowwater pickups to ensure a steady flow of cooling water as the lower unit is elevated. No longer in production this is great setup to convert your blunt nose gearcase into an extended lower water pickup lower unit for a cor, drag boat, or river racer.
Details about yamaha new oem nose cone engine motor flusher mar. Measure from the tip of the cone to the back edge of the hub same for the top measure from the leading edge to center of the back keep measuring all through the welding. You can purchase a few of our standard size mounts here. Assemble straight nose cone or motortoangle adapter to torque multiplier or motor by retracting the quick connect collar with fingers while placing straight nose cone or motortoangle adapter on motor.
Buying an outboard motor can be a large investment, and one which should last a long time. The nose cone that i received from bobs that they sent for a merc lower unit has about a 316 gap between the nose cone and the verticle side of the gear case on each side, as i look at rivermans gear case and nose cone fitment on the verticle side the nose cone fits snugly to the gear case, is this normal for the bobs cone to fit loose with a 316 gap on each verticle side on a merc gear case. Mercury lower unit nose cone instillation my way youtube. In addition to pickups on the nose of each, the torpedo projects forward into a sharply pointed nose cone, like that of a supersonic jet fighter. Considering one on my yami 60 4 stroke for my banshee extreme. The outboard motor manufacturers are now furnishing built in low water pickup cones on all larger performance motors, and as a result the demand for after market low pickup cones has fallen off dramatically. We have 1 mercury mercruiser bravo one manual available for free pdf download.
A properly designed and installed nose cone can add some lift and streamlining, and thus improve speed, fuel economy, and handling. Just the nose cone and the epoxy the solid nose cone kits are if you only need to stream line your case, and do not require low water pickups. Yamaha new oem outboard water pump impeller, 115250hp, 6e5443520100. Made to fit the front of a stock lower unit to reduce the angle of the gearcase housing, lengthening the transition from the gearcase nose to its trailing edge, reducing the chance of building a vacuum pocket on the side of the gearcase.
We can cut to any cc and shape and re oring can change 280 heads from round orings to blade style. Originally the engine was a 2009 with an l2 gear case and a different prop. In the ebay kit that i used, it contained three bulkheads. Nose cones on outboard and sterndrive lower units are common in the world of boat racing. If you have the ability to install a nose cone on the. If you didnt youve got restriction in the nose cone. Nose cones tie bars trim pumpdrive lube monitor caps electrical battery boxes battery switches circuit breakers and panels.
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