Boat Engines


Boat Engines
Caterpillar 3208 - Not A
Caterpillar 3208 - Not A "Throwaway Engine"
Disposable engines? Surely you jest. The 3208 is one of the better and longest running production engine ever put in a boat. Like all marine diesels there was a demand to squeeze more power out of them by increasing HP over the years. The buyer demand for speed of the modern day sportfisherman has greatly affected engine life across all brands not just Cat. 
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Yanmar 4JH2-HTBE Diesel Marine Engine Information and Specifications
Yanmar 4JH2-HTBE Diesel Marine Engine Information and Specifications
Another superb engine to help complete the JH rangeThis 56.0kW engine inherits the many fine characteristics of the JH range. Low weight, many advanced engineering features and a space-creating low profile give undreamed of space. Four close-pitched cylinders form a compact block while a shorter skirt drops engine height. Sleeveless cylinder walls allow a big bore of 82mm. With the improved power/weight ratio is a better fuel consumption, one of the advantages of its precise direct injection system.
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Caterpillar 3116 Marine Engine Information/Specifications
Caterpillar 3116 Marine Engine Information/Specifications
Since its introduction, the Cat 3116 has generated excitement on the water. With a high horsepower-to-weight ratio and legendary Cat dependability, the Cat 3116 had proven to be a popular choice on the water.
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Caterpillar Diesel Marine Engine Rating System Definitions
Caterpillar Diesel Marine Engine Rating System Definitions
Caterpillar Marine Propulsion Engines are available in five rating classes, tailored to your needs.
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DDC/Volvo Penta 74 EDC Boat Engine Review: MORE BANG FOR THE BUCK
This new in-line six-cylinder diesel from DDC/Volvo packs a wallop and is coming your way soon. Slated for introduction at the 1998 Ft. Lauderdale International Boat Show, DDC/Volvo Penta's new 7-liter Series 74 EDC in-line six-cylinder diesel is said to develop 480 crankshaft horsepower at 2600 rpm.
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Caterpillar Marine 3616 Engine Improves Fast Craft Performance
Caterpillar Marine 3616 Engine Improves Fast Craft Performance
November 1, 1998 Caterpillar's Engine Products Division is pleased to announce a significant upgrade of its 16-cylinder 3616 engine for marine fast transport. Power is increased six percent, to 6000 bkW at 1020 rpm, without increasing peak cylinder pressure. Other improvements include smoother acceleration, improved efficiency, better emissions levels, and more flexible installation requirements.
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MerCruiser 454 MAG MPI Horizon Engine Review: LONG-DISTANCE RUNNER
MerCruiser is calling its 454 MAG MPI Horizon inboard the most important advance in marine power in years because it not only delivers improved performance and efficiency, but relieves the boater of time-consuming service and maintenance.
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MTU Boat Engine Review: SERIES 2000
When Detroit Diesel and MTU joined forces, great things were expected. The result, however - the Series 2000 engines - exceeds expectations. THE MARRIAGE of Detroit Diesel and MTU has finally borne fruit - and what a wonderkind it is! The new Series 2000 engines combine successful technologies from both American and German engineering skills.
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Cummins 370B Boat Engine Review: CUMMINS 370B
Cummin's new 370B in-line six packs a lot of power into a compact package. Measuring just 4'0"x2'7"x2'8" and weighing just 1,225 pounds (3.3 lbs/hp), the engine squeezes better than one horsepower from each cubic inch - 370 hp from 359 cubic inches. 
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MAN Boat Engine Review: PUMPING IRON
A close look at how MAN added more muscle to its 401 diesel reveals that bulking up an engine involves more than just a bunch of add-ons. THE ENGINES in a diesel series are typically built on the same short block, but they have multiple horsepower ratings and vary, sometimes dramatically, in price. The price difference often seems greater than the cost of the added parts, such as turbochargers and aftercoolers. You may be left wondering if you're being charged more than you should be for chat extra horsepower. Wouldn't it be cheaper to simply buy the base engine and have the additional parts installed?
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Marine Power 454 Premium Boat Engine Review: MARINE POWER 454 PREMIUM
The 454 Premium is one of eight Marine Power fuel-injected gasoline inboards. It's based on the heavy-duty GM 7.4L block with four-bolt main bearing caps and comes with a standard two-year warranty.
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Caterpillar 3116 Boat Engine Review: Caterpillar 3116
The Caterpillar 3116 is a versatile engine with a wide range of applications. It's suitable for everything from planing pleasure boats to oceangoing commercial displacement craft such as freighters or bottom-drag trawlers.
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Lamborghini Speed Boat Engine Review: LAMBORGHINI L900i
This Lamborghini V-12 is a consumer version of the racing engine that is so dominant in European offshore racing. Actually, it is nearly the same engine. 
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MAN Boat Engine Review: MAN D2842 LE402
A V-12, the D2842 LE402 has a swept volume of 22.1 liters with a 5.04-inch bore and 5.59-inch stroke. Its turbochargers are encased in engine coolant while its charge air is cooled by sea water circulating through an intercooler. 
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Detroit Diesel 16V-92TA DDEC Boat Engine Review: Detroit Diesel 16V-92TA DDEC
The largest of Detroit Diesel's 92 Series engines, the I 6V- 92TA is capable of generating 1,450 bhp. 
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Caterpillar 3208TA Boat Engine Review: Caterpillar 3208TA
This year marks the 25th anniversary of Caterpillar's most popular marine diesel - the 3208. To celebrate, Cat is offering the Silver Anniversary Edition 3208. 
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Hino Boat Engine Review: HINO H250D/H310D
The standard diesel in the 4587 Motoryacht is the H250D; the optional H310D is nearly identical except in horsepower.
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Detroit Diesel 8V-92TA DDEC Boat Engine Review: Detroit Diesel 8V-92TA DDEC
In the new DDEC 8V-92TA, Detroit Diesel combines second-generation electronic control with highly developed turbocharged, aftercooled, by-pass blower two-stroke technology and compact V-8 configuration to produce a high power density: 760 bhp from 736 cubic inches and 3.470 pounds (dry). As a result, these engines are almost perfect candidates for yachts the type and size of the Rybovich 54.
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Detroit Diesel 6-71TIB DDC Boat Engine Review: Detroit Diesel 6-71TIBs
These venerable in-line six-cylinder Detroit Diesels boast lineage that dates back some 50 years. The Series 71 engines were originally developed to power World War II Navy landing craft. And today, in evolved form, they can lay claim to being perhaps the most popular Detroils in pleasure-yacht applications, underscoring the soundness of the DDC concept of "evolutionary technology."
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DETROIT DIESEL 6-71TIB Boat Engine Review: DETROIT DIESEL 6-71TIB
These venerable in-line six-cylinder Detroit Diesels boast lineage that dates back some 50 years. The Se· ries 71 engines were originally developed to power World War II Navy landing craft. And today, in evolved form, they can lay claim to being perhaps the most popular Detroits in pleasure-yacht applications, underscoring the soundness of the DDC concept of "evolutionary technology."
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MAN 2842LX Boat Engine Review: MAN 2842LX
Available in 8-, 10-, and 12-cylinder configurations, 28-series MANs are characterized by a 128mm bore and 142mm stroke, producing a per-cylinder displacement of 1.83 liters. Yet while the 2842 displaces nearly 22 liters, it weighs just 3,483 pounds, for a weight-to-horsepower ratio of only 3.48:1.
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MerCruiser SC Boat Engines Review: SUPER-POWER SUMMIT
MerCruiser puts supercharged lighting in Wellcraft's Thunder.  WELL, HERE WE GO again. My horsepower nerve is twitching, shooting synapse-popping bursts of energy from my brain to my throttle hand. Sometimes it's the smell of Cam 2 exhaust fumes. Sometimes it's the view through my helmet visor. Today it's the unmuffled roar of 1,200 horsepower blasting from the transom. I have to jam those Zero-Effort levers to the wall and buzz awhile. Finally out of the no-wake zone, I nurse the boat onto plane, then slam the throttles home. Thunder rolls off the steel hull of a Norwegian cruise liner, a white flash in my peripheral vision as we howl out Government Cut at 75 mph.
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MTU Boat Engine Review: I WANT MY MTU
IN THE WORLD of large, high-speed diesels, MTU is a reigning monarch. Aside from the sheer muscle in its engines — which ranges up to 10.000 hp — this German enginebuilder’s claims to fame are an impressive power-to-weight ratio and slick engineering.
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Caterpillar 3412 Boat Engine Review: GREAT WHITE HOT
IN JUST OVER a year since its introduction, the Caterpillar 3412 has become a popular choice among large-boat owners. The reason is as simple as a cliche' - this powerplant's combination of speed, efficiency, and reliability. 
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Caterpillar 3208 - Fast Track Diesel - Boating
Caterpillar 3208 - Fast Track Diesel - Boating
The venerable 3207 moves into the passing lane as Caterpillar boosts it to 425hp CATERPILLAR, The company that inspired Alexander Botts and the Earthworm Tractor Company, understands that the engine business is no place for weaklings. Engines have always been a crucial part of Caterpillar's success, of course- from its earliest steam traction engine that pulled combine harvesters, to gas engines for the revolutionary crawler tractor, to the latest, greatest Caterpillar 3208TA. Not satisfied with the 3208 already being one of the most popular mid-range diesels on the powerboat market, Caterpillar has engineered another big boost in its output.
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Caterpillar 3412HO Boat Engine Review: A LIGHTER, STRONGER CAT
The specific method for upgrading the 3412 to create the new 3412HO was threefold: modify the size of its physical envelope, whittle its weight, and increase its power output. Combined, the modifications resulted in a formidable power-to-weight ratio. Power-to-weight ratio for the 5,400-pound standard, turbocharged, aftercooled bundle was 6.3 lb./hp. The new HO weighs 4,950 pounds, develops 1,000 horsepower at the same 2100 rpm, and boasts a power-to-weight ratio of 4.95 lb./hp. Furthermore, the physical profile of the engine was tailored to meet the space-saving requirements of pleasureboats.
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KaMeWa Waterjet System Review: JETS ARE BUSTING OUT ALL OVER
KaMeWa waterjets are an excellent alternative to conventional propulsion on medium or high-speed yachts, particularly those that have to operate in shallow-water situations or in waters contaminated with floating debris. Their assets are excellent maneuverability, good acceleration and deceleration, lower noise and vibration levels, fuel savings (nine to ten percent is claimed) over conventional propeller systems, especially above the 20-knot speed range.
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KaMeWa Water Jet Engine Review: WHAT MAKES THE KAMEWA RUN?
The KaMeWa is an axial-flow pump with two principal pump components. One is the impeller, which is driven by the engine, and the other is the stator, which is a series of stationary vanes on the pump's interior walls. When velocity is split or vectored, force is reduced, so the stator changes the spiral motion of the water back into lateral motion to increase thrust.
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