THE TRADE-A-BOAT VERDICT Perfect for pottering around waterways. The MerCruiser 4.3L MPI makes good economic sense in infrequently used sportscruisers. The exhaust note is nowhere near as satisfying as a V8 but under load the V6 noise ain’t half bad!
Is the MerCruiser 4.5 a good engine?
At 250 horsepower, the MerCruiser 4.5-liter is nearly on par with some of the lower-end V8s. Second, it does so with two fewer cylinders, so it’s more economical. It also weighs less, which is important to fuel economy. And, again, it has been designed from scratch to be a boat engine.
Is the MerCruiser 4.3 MPI fuel injected?
The MPI system fine-tunes the fuel-to-air mixture in the combustion chamber, delivering ultra-smooth operation from idle to wide-open throttle.
Power steering is standard, providing you complete and effortless control.
| HP / kW | 220 / 164 |
|---|
| Fuel delivery system | Multi-point Electronic Fuel Injection (MPI) |
How fast will a 4.3 MerCruiser go?
Our test boat had the base level power of a MerCruiser 4.3lt V6, which is a carburetted engine rated at 142kW/190hp fitted to an Alpha drive unit. That gave plenty of get up and go, with a 75.7km/h top speed.
Is the 4.3 MPI a good engine? – Related Questions
What does MPI stand for MerCruiser?
Multi-Point Fuel Injection or Multi-Port Fuel Injection (MPI) – This refers to a fuel system that uses a fuel injector at every intake port of the engine.
How many hours will a MerCruiser last?
The average marine gasoline engine runs for 1,500 hours before needing a major overhaul. The average marine diesel engine will run for more than three times that long and log an average 5,000 hours under the same conditions.
Are Mercruisers good engines?
The main reason boaters select Mercruiser is the engine’s reliability. Using an engine you can count on throughout your ownership is a big perk. Boaters also appreciate the Mercruiser’s fuel efficiency and performance.
Do I need to change my MerCruiser oil every year?
Frequent oil changes ward off breakdowns and extend the life of your boat engine(s) by thousands of hours. Engine manufacturers typically recommend an oil change every 100 hours, and at least once a year.
Is 360 hours a lot for a boat?
The average gas boat engine when properly maintained will usually make it to 1,500 hours without any major repairs. A well-maintained diesel boat engine can make it to 3,000 hours if it is used for long, consistent trips.
How much power can you get from a 4.3 MerCruiser?
Mercruiser 4.3L Carbureted Crate Engine 225hp.
How many HP is a 4.3 MerCruiser?
Of the four V-6s, only the 220 hp MerCruiser 4.3 MPI ECT has a catalytic converter.
Can a boat go 200 mph?
At that speed, a boat covers 293 feet per second on a constantly changing surface. Running 200 mph on the water is a tall and very dangerous order, which is why so few people—despite more than a few unsubstantiated claims—have done it.
How much HP does a 4.3 have?
A 4.3 liter engine is an internal combustion engine with a displacement of 4.3 liters. This is a relatively small engine size, and is often found in vehicles such as sedans and smaller SUVs. A 4.3 liter engine typically produces around 200 horsepower, and will get good fuel economy due to its smaller size.
How much weight can a 4.3 pull?
4.3L V6 Engine — produces 285 hp and a best-in-class 305 lb-ft of torque. Its towing capacity is 7,900 pounds.
Is a 4.3 a V6 or V8?
The original engine family was phased out in early 2014, with its final use as the 4.3 L (262 cu in) V6 engine used in Chevrolet and GMC trucks and vans.
How big is a 4.3 liter engine?
The bore and stroke dimensions are 3.92-inch (99.6 mm) bore x 3.62-inch (92 mm) stroke (262 cubic inches) for the 4.3L.
How much HP does a cam add to a 4.3 Vortec?
4.3L Vortec + 1 Cam = 42 Extra Horsepower.
Does the 4.3 have active fuel management?
You’ll find AFM on the 2.7L turbo, 4.3L V6, and 5.3L V8 engines.