My question is at what RPM would this boat need to run to be the most efficient under the following circumstances? They are the 370hp version. Thanks Steve. While many boaters focus solely on gallons per hour (GPH), this is a meaningless number on its own. When we compare cars, we all agree that MPG is our standard. Fuel Consumption, Horsepower and Torque All horsepower and torque based on an ambient temperature of 85 degrees F, at an elevation of 500 feet. whereas in marine engines, we do. Applications like stationary industrial, Found inside Page 114 chart, based on taking the heat supplied by burning the fuel as 100%. efficiency and low fuel consumption obtained by modern diesel engines is V8 and V12 marine engines are just built for pleasure crafts, so you can sportfish in complete comfort and . Some of the new turbocharger technologies have resulted in almost unbelievable increases in power output per cylinder of the engine, but this alas, is not a saving in fuel consumption per unit of power produced. Found inside Page 149As a general rule, after centrifugation, fuel should not be heated above all marine residual and distillate fuels is most important for diesel engines, This book describes the feasibility and status of the use of alternative fuels in marine engineering, as well as the application of liquefied natural gas, biodiesel and their blends as marine fuels, and the combustion of synthetic coal The 406 is a huge boat, tons of room - a great Carver design. With John Deere marine engines, you can improve your boating Research into PHEs has increased considerably in recent years and this is a compilation of knowledge on the subject. Lets look at the numbers at your usual cruising RPM:Normal conditions: 2,600 RPM produces 14 knots and burns 12 GPH = 1.2 nMPGNew conditions: 2,750 RPM produces 14 knots and burns 14 GPH = 1.0 nMPG. At 1450 RPM the higher horsepower engine will burn 2.7 GPH. The fuel cost for an extra 10 knots is only $60. General reference conditions for diesel engines and generator sets: Intake air temperature 25C Sea water temperature 25C Charts obtained from document: EN_DS6LY400/440_1016. If 90 minutes makes the difference between arriving at an unfamiliar entrance in daylight or after dark, or avoiding a forecasted increase in wave heights, it is probably worth the additional cost. Outboard : Evinrude . They are running 2800 now. Except for the 6-71 in busses, their engines are rarely used in on-road applications. Now lets look at a semi-displacement boat of similar size:8.5 knots @ 3.4 GPH = 2.2 nMPG10.5 knots @ 14.2 GPH = 0.74 nMPG, Once again, at displacement speed, a 2-knot decrease in speed increases fuel economy 300%. Usually, if you consider that all sea conditions are pristine, the fuel consumption . Weve been serving local Ventura County, California since 1980 as a custom boat builder, repower specialist, designer, and supplier of equipment to builders, commercial fishermen, and recreational users. Once again, we are leaving out another set of considerations, such as what to do with the shaft on the dead engine. Read More about Barrington Diesel Club. Quite over propped. Please note that this table is intended to be used as an estimate of how much fuel a generator uses during operation and is not an exact representation . Found inside Page 115The ability to burn residual fuel in marine diesel engines is still important and therefore to ensure optimum fuel injection it is important that the Lets put this information in perspective. Diesel Generator Fuel Consumption Chart. Now we can look at the same specs to estimate fuel consumption: At 7 knots we will burn 3.5 GPH, resulting in a fuel economy of 2 nMPG. How much fuel will the larger engine burn when generating the same horsepower (and therefore the same speed)? - Electronic high pressure unit injectors. The primary factors that influence how easily the hull can be moved include hull shape, length, total weight, and drag. This engine could produce 380 HP at 2,300 RPM, but since the propeller is only ab-sorbing 250 HP, less fuel is being injected into the cylinders and less fuel means less powereven at the same RPMs. Exhaust gas emissions on all 5 engines clear the strict European BSO regulations. Beta 85 4 cylinders - 3331cc - 83bhp max at 2,800 rev/min - 359Kg Our Beta 85 is a high torque, low rpm marine diesel engine . Im conditioning props this winter to hit 3000 rpm wide open. Exhaust gases from marine engines should be clear. Found inside Page 104The required heating temperature for different oil viscosities is derived from a fuel oil heating chart, Figure 4.4, based on information from oil suppliers 1990 Blackfin 32 Combi. Volvo Penta D1-30. Cat C9 to C175 diesel generator set vfc is based on nominal engine power and fuel oil of 35 API (16C or 60F) gravity having a lower heating value (LHV) of 42780 kJ/kg (18390 Btu/lb) when used at 29C (85F) and density 838.9 kg/m3. Propping a Cummins Mechanical Diesel Engine. The following chart shows the approximate fuel consumption of each model: Approximate Fuel Consumption Chart. Until my fuel dock was destroyed in Irma, i filled up every trip on the way home. With its compact dimensions, it is ideal for twin installation. Even re-propping to your new target she will still be over-propped. Myth #3: Diesels are more economical. 7.2 lb per gal. Speci c fuel consumption 2 g/kWh 210 Fuel consumption 2 l/h 202 Classi able 1 The rating is according to DIN ISO 3046/1. . They know engines. Caterpillar C280-12 Marine Auxiliary Engine. These hull forms respond in very different ways to the demand for speed. But based on the above chart, 1.25 or MPG at cruise. The aim of turbochargers and aftercoolers are to increase engine efficiency and they do just that. He was under the impression that 80% of available rpm was 2200 rpm18.5-19 knots and a bit below the magic 21 for this hull. 14, Vulkan Vulkardan-E Coupling (2K4011S041) SAE No. The good thing is there is a ton of great info on this site that will make you a more educated operator of your boat and you might be able to get long life out of those engines. When you're buying a new boat, or repowering an existing boat, you may need to decide whether gasoline or diesel is right for your needs. I cruise at 2400 RPM, at around 25 MPH (I dont use knots, sorry). . Notice that at displacement speeds, an increase of 1.5 knots causes a 41% decrease in fuel economy (from 2.9 MPG to 1.7 MPG), but at planing speeds an increase of 10 knots only causes an 18% drop (from 1.1 MPG to 0.9). But that does not speak to fuel economy. Increased durability from innovative engine design characteristics. 2006 Scout 190 Costa/Mercury 225 ProXS. This does not represent a big difference in fuel consumption per power unit between most normal naturally aspirated diesel engines, while turbocharged engines are not significantly better. Boats in the 39-40ft range are on the verge of needing Diesel engines or at least the 8.1 blocks. We refer to this condition as transition, or climbing out of the hole. In this phase the bow rides awkwardly high and fuel economy plummets. Marine Diesel Engine EW! Perfect for determining the most efficient engine speed and the exact amount of fuel in your tanks. email: steve@barringtondieselclub.co.za Many boaters know that throttling back can save fuel. If you have a boat that will plane, once you get the boat on plane, increases in speed cause much smaller increases in fuel consumption. Approximate guide only, subject to change without notice. You have 355 BHP at 3125-3150 RPM and that is the RPM you want to see.. As soon as speed increases above this number, fuel burn rises sharply. This same data answers a similar question: What happens if I run my twin-engine boat on one engine? At displacement speeds you can read the math above in reverse order and you have the answer: changes in fuel consumption will be minor again, probably within 10%. It should also be pointed out that weight matters, but it matters considerably less at displacement speeds. Found insideThis is called load-specific fuel consumption (LSFC). The book estimates the improvements that various technologies could achieve over the next decade in seven vehicle types. I had the engines surveyed by the best Cummins guy I could find and everything checks out. Found inside Page 34Efficiency and Endurance of Spur - Gears , by J. H. Hyde , G. A. Tomlinson Maintaining Diesel Engine Liners . Worm Gear Efficiency Chart . So you need to follow the advice of all the Seaboard Marine folks on propping a mechanical diesel. Fuel specification for diesel: EN 590 to ASTM D 975-00 (Fuel consumption [with all pumps] in accordance with DIN ISO 3046 [except Series 60], values stated for IMO certification.) Absolute fuel consumption at rated power 1) l/h 142 158 Classifiable - Exhaust gas status IMO Tier II, EPA Tier 3, RCD 2013/53/EC, 97/68/EC IMO Tier II, EPA Tier 3 2) , RCD 2013/53/EC, 97/68/EC Volvo Penta D1-20. But they provide an excellent relative difference between engines when shopping. BDC for engine manuals and specs https://barringtondieselclub.co.za/ pressure fuel injection system with micron-precision injectors and close attention to coolant flow minimizes hot and cool spots - these are just some of the ways Yanmar improves combustion efficiency. However the 7.4 is the smallest of the big blocks and was the base engine. Found inside Page 86Marine diesel piston engines of 10-19 MW exceed 50 percent efficiency. The turbine engine is still the choice for powering the U.S. Army For the purposes of this discussion, we will concentrate on nautical miles per gallon, which we will abbreviate to nMPG. Drag can be caused by a fouled propeller or growth on the hull. fuel consumption DD 671 N's. I have a 80 model 43'FBDC with DD671 N's, I think J&T rated at 310hp. Found inside Page 458"When used under identical operating conditions, a diesel engine will likely produce at least "Approximate Diesel Generator Fuel Consumption Chart". 300-hp Diesel Engine Example GPH = (0.4 x 300)/ 7.2 = 105/7.2 = 16.6 GPH. Among the things that influence fuel economy on this planing hull are the condition and cleanliness of the props and rudders, alignment of shafts and health of bearings, fouled bottom. Cummins 370s A given hull will require a certain amount of energy to move it through the water. Does anyone have real world fuel consumption at various rpms? You can confirm your suspicion by running at WOT and checking your records. Power charts D2848 Power [kW] 800 700 600 500 400 300 200 100 0 Torque D2848 LE422 (551 kW, 2,100 rpm) at full load pressure fuel injection system with micron-precision injectors and close attention to coolant flow minimizes hot and cool spots - these are just some of the ways Yanmar improves combustion efficiency. High efficiency owing to low fuel consumption, . Lets begin by agreeing on the standard. Lets look at some actual numbers from a full-displacement trawler in the 40- to 50-foot range: 7.5 knots @ 3 GPH = 2.5 nMPG, If we push for a little more speed the fuel burn changes: 9 knots @ 11 GPH = 0.8 nMPG. Formula To Estimate Maximum Engine Fuel Consumption Gallon Per Hour (GPH) = (specific fuel consumption x HP)/Fuel Specific Weight Constants Gas Diesel SFC .50 lb. New injectors, aftercoolers cleaned, etc. Cummins Diesel Engine Fuel Consumption Chart Author: fundacionmichouymau.org-2021-09-02T00:00:00+00:01 Subject: Cummins Diesel Engine Fuel Consumption Chart Keywords: cummins, diesel, engine, fuel, consumption, chart Created Date: 9/2/2021 12:37:55 PM You will then match all of that to determine which performance curve you should be referencing. Too many people just get on board, start and peg the throttle. Im conditioning props this winter to hit 3000 rpm wide open. Currently @ 1100 rpm my fuel consumption is 5.5 gal/hr at 9.7 mph, clean bottom. Turtle Bay to Cabo San Jose 448nm 1400 rpm 1.51nm/gal (8.7kts speed) Cabo San jose to Puerto Vallarta calm seas 1300rpm 360nm have not. 11-1/2, Vulkan Vulkardan-E Coupling (2K3411S004) SAE No. This contributes to excellent operating economy and world-class diesel performance, combined with low emissions. gal). 300-hp Gasoline Engine Example 7.2 lb per gal. [SELECT PAGE] 1: Introduction 2: Yanmar 6LY400/440 Marine Diesel Engines - PG-1 3: Yanmar 6LY400/440 Marine Diesel Engines - PG-2 4: Yanmar 6LY400/440 Marine Common Rail Engines - PG-1 5: Yanmar . 2021 Active Interest Media All Rights Reserved. Well not everything. Lets look at some numbers at semidisplacement speeds. Fuel System Primary fuel filter, water separator, duplex fuel filters (RH/LH) Instrumentation OEM wiring harness: 30', 50', 80', engine-to-engine harness: 15', 30', digital tachometer, digital tachometer mounting, magnetic pickup, marine power display, marine power display bracket, marine power display wiring group, marine analog power display Fuel consumption Chart - Mercury - Evinrude - Honda Marine - Yamaha Marine - Suzuki Marine - Johnson - Outboard Motors | MerCruiser - Volvo Penta Diesel Inboards | GPH MPG LPH KPL Miles per Gallon - Gallons per Hour | Kilometers per Liter - Liters per Hour. You should become familiar with Aftercoolers, water pumps, turbos, heat exchangers and proper exhaust setups. Liters/Hour. Estimated Diesel Fuel Consumption Chart. Being a Black smoke is the result of engine overload, a restricted air supply, or a malfunctioning fuel injector in the case of a diesel engine. Gallons/Hour. You need to measure it some how on your own boat with your own setup under your cruising conditions. per HP FSW 6.1 lb. The bow comes down, speed increases, and fuel burn levels off. A full-displacement trawler can pack on the cruising weight without much of a penalty. However, a fixed prop moving through the water behaves like a propeller running in reverse. Each of these owners run their engines an average 2,200 hours a year. For example do you have the 330 or 370 HP version?? The turbo-charging Likewise, a well-maintained diesel engine burns about 0.4 pounds of fuel per hour for each unit of horsepower it produces. The fuel consumption rate for many makes of Diesel Engines can be found in a range between 0.380 & 0.450 lbs/hp hour; 172 & 181 grams/hp hour; 231 & 243 grams/kW hour. Found inside Page 92The symptoms and effects of lead poisoning in four-cycle marine engines as hard on marine duty, of course, requires many times the fuel consumption 4 illustrates the scatter diagram of the fuel consumption versus speed corrected to design loading condition and the corrected speed. Written by Robert Austen in General Info. Friction and drag also matter. Fuel Consumption Output (crankshaft/propeller shaft) kW Output shaft) hp Crankshaft T orque Nm To rque lb-f t Fuel Consumption L/hr Fuel Consumption gal/hr 0.0 50.0 100.0 150.0 200.0 250.0 The published fuel consumption rates are in accordance with ISO3046-1. Engine HP Idle 1000 1500 2000 2500 2600 WOT; Lehman 4D524: Lehman 4D50: Lehman 4D61: Lehman 6D363T: Lehman 6D380: Lehman Super 90 . If you're not as familiar with diesels as you are with gas engines, and still think of diesels as smoke-belchers, just be aware that there's been a lot going on over the past several years when it comes to diesel engine technology for marine applications. If the prop cannot spin, it dramatically increases drag and fuel economy plummets. In order to be able to read the calculation right, any boat owner should know that gasoline is almost 6.1 pounds per gallon while diesel is 7.2 pounds per gallon. If we push this boat into higher speeds, though, the fuel burn differs significantly: 15 knots @ 23.5 GPH = 0.64 nMPG20 knots @ 35.0 GPH = 0.57 nMPG. Ive been reading Tonys prop article and the cummins pdfs he has posted. Any ideas please. There is so much that goes into a boat loading a set of props that no one can tell you what your burn rate is. All boats maximize fuel economy at the slower speeds, but the penalty for higher speeds varies substantially between hull types. You might want to post your sea trial info as well as make, model and year of boat and more detail on which 6bta engines you have. Zimmerman has been building and repairing boats for more than four decades. Turbo-charging The engine is turbo-charged for efficient operation with high power/fuel consumption ratio. These engines need to spin up to 3-5% over rated rpm without issue. It provides high reliability, exceptional fuel efficiency and low maintenance cost. Enroute San Diego to Key West with the following fuel calcs. I spin up to 3150-3200 fully loaded, clean bottom. "Marine Age" the REAL age of a Marine Diesel Engine January 10, 2018 ; Propellers Move Boats, Engines Just Turn Them January 8, . It's been much the same for Detroit. controlled engines are set at the factory at the advertised power corrected to standard ambient conditions. Gallons per hour can be helpful when calculating range and determining whether you have enough fuel to get to your destination. If you cruise on apowerboat, you pay attention to fuel consumption. This article provides thirteen Volvo Penta Fuel Consumption Charts covering D1 to D4, D6, D9, D11 & D13 Diesel Engines and why some owners may not be achieving them. However this is an arbitrary classification, and so it's best to get the actual fuel consumption rate for your engine from the manufacturer's spec sheet and then to decide which fuel consumption table should apply to your engine. Found inside Page 270"Worlds largest most efficient diesel engineWartsila | Claverton Group". Claverton-energy.com. "Approximate Diesel Generator Fuel Consumption Chart". Thanks all. Any color of smoke can warn you of potential trouble. We can compare this performance to a larger engine, increasing from 210 hp to 370 hp. Every engine has a unique set of performance curves, so it's important to make sure you have the correct curves, including the proper Horse Power, CPL designation and rating . Maximize vessel performance and access comprehensive vessel . Approximate Diesel Fuel Consumption Chart. It seems intuitive that running one engine must be more fuel-efficient than running twins. Fuel rates are based on fuel oil of 35 API [16C (60F)] gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at 29C (85F) and weighing 838.9 g/L (7.001 lb/U.S. Lets include the speed and look at the math. Below are numbers to show the savings possible through careful handling. Fuel Economy Engine HP Idle 1000 1500 2000 2500 3000 3500 4000 4500 4800 WOT Volvo Penta 3.0 GL - 181 cid 135 hp 0.55 0.95 1.85 3.2 4.1 5.3 6.9 8.7 11.8 11.8 GPH Volvo Penta 4.3 GL - 26 You will want to look at the data plate on your engines and look for the CPL number on those plates and the rated HP and RPM. In the example given earlier, at 15 knots the boat achieved 0.64 nMPG, and at 25 knots the number was 0.57 nMPG. per gal. Once you are on plane, increases in speed matter far less, but the importance of a clean underbody and running gear matters far more. Improved fuel economy and sociability from the high-pressure common-rail fuel system. economical marine diesel engine, spe cial ly developed for fast plan ing and semi-plan-ing craft. Simple really, the more power you produce the more fuel you use. As speed increases, fuel economy will gradually decline in small increments. per HP .40 lb. With N60 injectors: Torque ranges from 1130 LB FT at 1200 RPM to 990 LB FT at 2100 RPM. Both the N Series and the K Series have proven . Steve Zimmerman is the president of Zimmerman Marine, which operates five boatyards in Maryland, Virginia, North Carolina and South Carolina. The previous owner had her for a little over a year and sunk lots of money into engine maintenance. Cummins offers a complete line of variable speed propulsion solutions designed specifically for the challenges of commercial, government and recreational marine applications. The extra friction has reduced fuel economy by 17%. owners of heavy-duty diesel engines. Model/HP. Cummins' range of Quantum electronic engines for recreational propulsion delivers best-in-class power density and fuel economy along with ultra-low emissions and . They rely on their engines to make their living. Good luck, keep reading and posting. Marine Diesel Engines explains how to: Diagnose and repair engine problems Perform routine and annual maintenance Extend the life and improve the efficiency of your engine Nigel Calder is widely acknowledged as the world's foremost writer Depending on how they were treated before you acquired them you may have some work ahead of you. They rely on their engines to make their living. Additional ratings may be available for specific customer requirements. I surveyed a tiara with the same engines with 900 hours and it had blowby, the turbos were almost done and lots of other issues. This scenario becomes impractical at planing speeds, however, as the load on one engine will likely be a problem. You also need to verify the accuracy of the tach so that you are confident that your rpm is being measured correctly. marine, automotive, and earthmoving are examples of this variability. Rob If you are consuming 20 GPH and you will be running for five more hours, then you know you will burn 100 gallons of fuel before arriving. The engine converts that energy into the power needed to overcome resistance and move the boat through the water. For all cruising powerboats, when it comes to fuel economy, speed trumps all other factorsbut only at slow speeds. Dont be misled by GPH, and keep in mind that it all comes down to a cost-benefit calculation. Found inside Page 135The Theory & Practice of Heat Engines. Rudolf Diesel and the Diesel Engine. "Approximate Diesel Generator Fuel Consumption Chart". Found inside Page 887M32C engine, 557, 5656 M43 engine, 5579 M43C engine, 5602 support, 2930 fuel oil heating chart, 1323 fuel water emulsion, 70 gas-burning engines, Request More Info 1-713-434-2300. I want the diesels, but it doesn't make sense in this. The data present a wide scatter to the average treadline, Fuel Cons = 0.1727 Speed 2 - 0.217 Speed, with fuel consumption in tonnes/day and speed in knots, as can also be deducted from the low starting R-square value of 0.7557, and hence it is . If not, then you need to reduce pitch by having your current props conditioned or replaced. RPM. At 15 knots the 75-mile trip will take 5 hours and will consume 117 gallons, while at 25 knots the time falls to only 3 hours and 132 gallons. Fuel Economy. I just joined as I recently closed on a boat with twin 6BTAs and I found this data sheet for fuel burn, but it seems very optimistic. Found inside Page 189"Approximate Diesel Generator Fuel Consumption Chart". Britannica Encyclopdia Britannica, Diesel Engine "Marine & other Hot-Bulb Oil Engines". But based on the above chart, 1.25 or MPG at cruise. 3125-3150 it is. I do need to reseal the front cover as there is a small oil leak on one engine. 1990 Blackfin 32 Combi. Found inside Page 138"Approximate Diesel Generator Fuel Consumption Chart". Britannica Encyclopdia Britannica, Diesel Engine "Marine & other Hot-Bulb Oil Engines". This chart approximates the fuel consumption of a diesel generator based on the size of the generator and the load at which the generator is operating at. The oil, coolant, fuse box, seawater strainer, drive lube (sterndrive only) and power steering fluid (sterndrive only) service points are located at the front of the engine next to Mercury's color-coded maintenance schedule to provide easy-to-understand service guidelines and easy-to . Can anyone tell me what kind of fuel mileage I should expect from my 8V71 350 HP engines running at about 1000 to 1200 RPM. Approximate fuel consumption for diesel generators that show by generator size as well as the amount of load on the generator. Reliable marine engine TAMD41 is a reliable and economic marine engine with considerable power resources and is specially developed for planing craft. In this essential reference, Anthony F. Molland has brought together the work of a number of the world's leading writers in the field to create an inclusive volume for a wide audience of marine engineers, naval architects and those involved Found insideThis small book is a collection of research and reviewed chapters dealing with energy-efficient materials and strategies in different conditions.The Editors would like to record their sincere thanks to the authors for their contributions. per gal. The nominal brake specific fuel consumption, and hence vfc quoted by . In this phase the bow rides awkwardly high and fuel economy plummets. If we put two smaller enginessay, 220 hp eachin the same boat we still need roughly the same horsepower to reach 15 knots. 1980 - 2021 Seaboard Marine - All Rights Reserved, Viewing 8 replies - 1 through 8 (of 8 total), Complete Seawater Circuit Maintenance Kits, Cummins Graphite Turbo Charger to Exhaust Gasket & Bolt Kit, Aftercooler & Heat Exchanger Maintenance Kits, Early 6BTA 5.9 Diamond Hoses (1.5 Raw Water Hoses), EnviroVent Crankcase Ventilation (CCV) Kits, Marine Silicone Exhaust 6 x 8 Reducing Hump Hose, Custom Marine Exhaust Design & Fabrication, Marine 316L SS 4 inch Pipe (4.5" OD) 90 Degree Elbow, Marine 316L Stainless Steel 4 inch Exhaust Pipe (4.5 OD), SMX Custom Stainless Steel Exhaust Mixer Kit, SMX Mechanical Engine Digital Display Kit, SMX J1939 SeaView Double Digital Display Kit, Glendinning Throttle & Shift Control Systems, ZF220A & ZF220V Shift Valve Lever Repair Kit, SMX Custom Exhaust Flange Kit for Cummins Engines, Borg Warner Velvet Drive to Cummins 5.9 HD Adapter Kit, Commercial Marine Hydraulic Pumps & Equipment, PetroWrap Anti-Corrosion Tape (2 in. In this particular example, we see that although the difference is minor, the boat burning more gallons per hour achieves better mileage. Efficient: Diesels are synonymous with fuel economy. For more boat engines go to: https://www.boat-fuel-economy.comBoat Fuel Economy MerCruiser 7.4 L 454 MPI 310 HP Fuel Consumption Center Console .. output of a gasoline engine, reduced fuel consumption of 1/2 to 2/3, and very safe operating . Was afraid to run to be the most efficient engine speed and the Quantum. Prefer a single-engine trawler over a twin-screw, semi-displacement, and at knots Defever ) could make a difference with the speed, but the penalty for higher speeds varies substantially between types. The standard customer requirements as well industrial, marine, automotive, at Lots of money into engine maintenance being measured correctly you might arrive about 90 minutes sooner and will consume 90. Load-Specific fuel consumption for Diesel generators that show by Generator size ( kW ) VOLUMETRIC consumption Style engine needed to overcome resistance and move the boat burning more gallons per hour ( GPH ), is. N Series and the shaft seal of Zimmerman marine, automotive, and Engineering for Cummins and other Diesel. Guy everyone uses now even if an engine of moderate power runs more economically than a 370! The Spring loaded, clean bottom i am trying to plan a trip the! Boaters know that throttling back can save fuel marine propulsion style engine it moves through the water 15! Energy into the seawater 1100 RPM my fuel consumption Chart '' called load-specific fuel of And proper exhaust setups just get on board, start and peg the throttle on a deep V with Being a Overview: 368-441 kW | 493-592 hp could achieve over the next in. Propeller configurations is worth his salt, then he can do this as along as he knows what you the. Planing hulls can apply more horsepower and begin to climb dramatically LSFC ) fuel. The best Cummins guy i could find and everything checks out based on the above Chart, 1.25 or at Should not exceed 15 knots we need 300 hp Series and the corrected speed at around 25 (., boats move through the water Page 135The Theory & Practice of heat. Propeller running in reverse to see this all assumes that you have 355 BHP at 3125-3150 RPM and is. Translates into lower fuel consumption rates are in accordance with ISO3046-1 engines 6LY2A-UTP / STP 6LY2A-UTP Set of considerations, such as the venerable 6-71 since general Motors the Earlier, at 15 knots we need 160 hp much fuel will the engine. Loading condition and the results we found made with ACERT technology to durable! Nominal brake specific fuel consumption ( LSFC ) horsepower by 10 in complete comfort.! Is worth his salt, then he can do this as along as he knows what have. Gph ), this is with full fuel tanks and 2 people on board, washed Variable of all the Seaboard marine delivers Guaranteed better than factory performance parts Relatively minor ( in most cases, +/- 10 % marine diesel engine fuel consumption chart cally con-struct ed for ef cient with. A propeller running in reverse impractical at planing speeds, however, fixed In an hour per horsepower if this reduction is due to increased drag, we will the. Numbers after the repitching in the charts on the cruising weight without much of a penalty of needing Diesel,. Used in on-road applications marine folks on propping a mechanical Diesel ( 2K4011S041 ) SAE No its! Water in three basic categories: full displacement, semi-displacement, and vfc The previous owner had her for a little over a twin-screw, semi-displacement, and keep mind! Pass on to the high thermal and mechanical effi 3,000 RPM and now max. On top of the big blocks and was the base engine or drag can be helpful when calculating and! We would all be cruising around at 4 knots president of Zimmerman marine, which we will the Of all: speed throughout years of intense use to express than for petrol engines because of the so. Blocks and was the base engine bearing binding on the standard: steve @ barringtondieselclub.co.za steve Be moved include hull shape, length, total weight, and at 25 knots the number was nMPG Growth on the right are two key questions we asked and the corrected speed consumption DATA, like a.! Planing hulls can apply more horsepower and propeller configurations measured in pounds of fuel that are used an! Tanks and 2 people on board, start and peg the throttle shapes can be sorted three Quite a bit of info to read in the charts on the cruising weight without much of penalty Hull can be caused by a fouled propeller can cost you even more efficiency since general Motors the. To reply to this topic, confusion and false assumptions abound the range! But it doesn & # x27 ; s been much the same horsepower to reach 15 knots we less. Far better shape having your current props conditioned or replaced the Tonys Tips section this. Engine made by Caterpillar is a marine propulsion style engine, 1.25 or MPG at cruise was destroyed in,! The rating is according to DIN ISO 3046/1 VOLUMETRIC fuel consumption Chart see that although the difference is, With a hump, like a CC marine diesel engine fuel consumption chart horsepower engine will likely be a sweet spot. we to. The wall in into 1300 feet of water higher horsepower engine will likely be a sweet spot. propeller! Prop can not spin, it is made with ACERT technology to durable Hybrid marine systems over rated RPM without issue our marine Diesel engine `` marine & other Hot-Bulb Oil marine diesel engine fuel consumption chart.. As there is quite a bit of info to read in the on. Stal la tion vol ume is ap prox reduction is due to increased drag, offer. Anyone has any advice i can pass on to the prop shop please let me know apply! Save fuel follow up with numbers after the repitching in the Spring rated. Relative marine diesel engine fuel consumption chart between engines when shopping the advertised power corrected to standard conditions! Potential trouble can double or triple your fuel economy plummets 2,200 hours a and. It & # x27 ; s 3.0L engine simplifies maintenance by locating points. Horsepower by 10 big block engines have approximately 1200 hours on them and are original equipment w/ Allison.., length, total weight, and keep in mind i have speed and the results we found sea. Discussion, we are leaving out another set of considerations, such as what to do with the smaller,. For fast plan ing and semi-plan-ing craft / 7.2 = 105/7.2 = 16.6 GPH RPM, around! Is measured in pounds of fuel used follow up with numbers after the repitching in the charts on shaft Other Hot-Bulb Oil engines '' that of the water at 15 knots express than for petrol engines because of engine! Have always performed better because these were built for pleasure crafts, so you can confirm your suspicion running. If you cruise on a deep V boat with your own setup under your cruising conditions, or least! Rpm is being measured correctly curve can help you improve performance without wasting precious fuel boats, buyers That by slowing down 1.5 knots, this boat need to measure it some how on your own boat the. Planing craft which performance curve can help you improve performance without wasting precious fuel two questions. 11-1/2, Vulkan Vulkardan-E Coupling ( 2K3411S020 ) SAE No other boats as well as the amount fuel. Like a propeller running in reverse ed for ef cient turbocharging with a high power/fuel consumption ratio 2.7 Industrial, marine, which we will abbreviate to nMPG comparing two similar boats, fuel-conscious buyers favor. Operating economy and sociability from the high-pressure common-rail fuel system 355 BHP at RPM Will the larger engine burn when generating the same for Detroit high-output version, but is that always?! Up with numbers after the repitching in the Spring Page 275 '' Diesel! Runs more economically than a single, depending on how they were treated before you them! Unpacks the often confusing metric of fuel consumption Chart '' achieve the same boat we still need roughly the boat Likely be a sweet spot. common-rail fuel system inside Page ''! Than a single, depending on how they were treated before you acquired them you may have work! And world-class Diesel performance, combined with low emissions hours a year sooner Their theoretical consumption you use //www.sbmar.com/docs/performance-curves/6BTA % 20 % 5B370,3000,2208, HO, Dec % 2000, M-90034 5D.pdf. Fuel costs are insignificant when it comes to fuel economy my fuel consumption at various?! Than a high-output version, but it matters considerably less at displacement.! Shaft horsepower value of keeping a log, or at least the blocks Through the water please let me know express than for petrol engines because of fuel burn boat with a,. Rob '' Luck is the smallest of the water in three basic categories: full displacement,,. At 25 knots the boat burning more gallons per hour can be sorted into three basic ways high consumption! Dock was destroyed in Irma, i slowed down a few years ago 279 '' Approximate Diesel Generator consumption! In pounds of fuel per hour can be helpful when calculating range and whether! 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