Regan Brown
It is possible to replace the carb on a Mercruiser with fuel injection, but it's an expensive process. One user on a boating forum estimates the cost of the swap to be between $3000 and $6000. Another user suggests that the cost of the conversion may outweigh the benefits, especially for an older boat.
| Characteristics | Values |
|---|---|
| Can you replace carb on Mercruiser with fuel injection? | Yes, but it's expensive and may not be worth it for an old boat |
| Cost | $3000 to $6000 |
| Alternatives | Electronic ignition and good carb update, or a new boat |
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What You'll Learn
EFI systems from hot rod suppliers like Edlebrock and Holley can be used as a replacement
Yes, you can replace the carb on a Mercruiser with fuel injection. There are after-market bolt-on EFI systems from hot rod suppliers like Edelbrock and Holley that will work. The biggest obstacle is the O2 sensors, but there are some closed-loop systems that don't use them. The cost of converting to EFI may be high, and it may not be worth it for an older boat. One user reported that they had successfully installed EFI from a Camaro IROC-Z 5.0 tuned port on their boat, although it was not quite marine spec. Another user suggested that a new boat might be a better option than converting an old one to EFI.
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EFI systems from a car can be used on a boat, but it's not marine spec
Yes, it is possible to replace the carb on a Mercruiser with fuel injection. Aftermarket bolt-on EFI systems from hot rod suppliers like Edelbrock and Holley can be used, but the biggest obstacle is the O2 sensors. It is also possible to use EFI systems from a car on a boat, but it is not marine spec. The automotive stuff is sealed up pretty well, but it is not quite marine spec. The cost of changing an 898 to EFI would be more than any 305 is worth.
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$14.99
EFI conversion is costly
It is possible to replace a Mercruiser carb engine with fuel injection, but it is costly. EFI conversion kits can cost upwards of $3000, with some estimates ranging from $3000 to $6000.
EFI conversion kits can include a range of components, such as an ECU, intake, manifold, throttle body injectors, computer control, sensors, and fuel rails. The cost of these components can vary, but they typically add up to a significant expense.
For example, a Megasquirt package kit with an ECU, harness, and other necessary components can cost around $600. Additionally, you may need to purchase an intake for $350, rails for $250, injectors for $250, a throttle body for $300, and miscellaneous connectors from a junkyard for $50. These costs can quickly add up, making the EFI conversion a costly endeavour.
While EFI conversion can provide benefits, such as improved performance and fuel efficiency, it is important to consider the cost-benefit analysis before making the switch. For older boats or engines that are not significantly out of tune, the cost of EFI conversion may outweigh the gains. In such cases, an electronic ignition and good carb update may be a more appropriate and cost-effective solution.
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A Pertnronix ignition is a good alternative
Yes, it is possible to replace the carb on a Mercruiser with fuel injection. However, it can be costly and may not be worth it for an older boat. One user suggests that a Pertnronix ignition is a good alternative. A Pertnronix ignition is a more appropriate route for an older set-up than a costly EFI conversion. It is also possible to use EFI from a car, but it is not quite marine spec.
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EFI is not going to get you much over a carb in an old boat
There are after-market bolt-on EFI systems from hot rod suppliers like Edlebrock and Holley that will work, but the biggest obstacle is the O2 sensors. It's also important to note that automotive EFI systems are not quite marine-spec, so they may not be as reliable in a boat.
One user suggests that an electronic ignition and good carb update would be a more appropriate route for an older setup than a costly EFI conversion.
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Frequently asked questions
Yes, it is possible to replace a carb on a Mercruiser with fuel injection.
The cost of replacing a carb on a Mercruiser with fuel injection can vary, but it is estimated to be between $3000.00 and $6000.00.
Replacing a carb on a Mercruiser with fuel injection can provide improved performance and fuel efficiency.
Yes, there are alternatives to replacing a carb on a Mercruiser with fuel injection. One option is to install an aftermarket bolt-on EFI system from hot rod suppliers like Edlebrock and Holley. Another option is to upgrade the electronic ignition and carb.
