How To Know Which Engines Are Fuel Injected Vice Carbureted?

[GeneralT001]

Hi,

Is this done by year made? Such as anything after say 1985 is fuel injected? How do you know. Is there a preference over injected vs carburetor?

[Hank]

The following Mooney models are carbureted:

• M20
• M20A
• M20B
• M20C
• M20D
• M20G

Everything else is fuel injected

If you know the engine model, O-XXX is carbureted, IO-XXX is fuel injected (that's the "I" in the engine number).

[1980Mooney]

48 minutes ago, GeneralT001 said:

Hi,

Is this done by year made? Such as anything after say 1985 is fuel injected? How do you know. Is there a preference over injected vs carburetor?

 

38 minutes ago, Hank said:

The following Mooney models are carbureted:

• M20
• M20A
• M20B
• M20C
• M20D
• M20G

Everything else is fuel injected

If you know the engine model, O-XXX is carbureted, IO-XXX is fuel injected (that's the "I" in the engine number).

A few C’s have been converted to fuel injection by replacing the entire engine to an IO-360 by STC.  As stated you need to look at the ad listing.  Given the cost and importance of the engine, virtually every ad will provide some engine detail beyond hours if there has been a modification.  
 

 

[GeneralT001]

2 hours ago, Hank said:

The following Mooney models are carbureted:

• M20
• M20A
• M20B
• M20C
• M20D
• M20G

Everything else is fuel injected

If you know the engine model, O-XXX is carbureted, IO-XXX is fuel injected (that's the "I" in the engine number).

Many thanks

[Pinecone]

To expand, a TIO or TSIO is a turbo charged, fuel injected engine.  Lycoming uses the TIO designation and Continental the TSIO designation.

And yes, it is possible to have a turbo charged, carbureted engine, but they are not common.  Lycoming makes a TVO-540 for helicopter use.  The V indicates vertical orientation. 

[EricJ]

As mentioned, for the Continentals and Lycomings that go in Mooneys, the initial letter designation on the engine indicates whether it is carbureted or fuel injected.    A-B-C-D-G models have O-360 Lycomings, which are carbureted 4-cylinder engines.    E-F-J models have IO-360 Lycoming engines that are very similar 4-cylinder engines to the O-360, but have fuel injection.

Preference between them depends on personal preferences.   The O-360s make 180hp, the IO-360s make 200hp (not just because of the fuel injection, there are valve/head differences as well). 

[Shadrach]

21 hours ago, GeneralT001 said:

Hi,

Is this done by year made? Such as anything after say 1985 is fuel injected? How do you know. Is there a preference over injected vs carburetor?

Fuel injection has been around for a long time. The Precision Airmotive/Bendix/Avstar RSA injection system utilized by your J model dates back to the 1950s. The previous RS system dates back to the 40s.  By the end of WWII B29s were utilizing Bendix direct injection on the 18cyl Wright R3350.  Generally speaking, there has been very little that has changed about FAA certified fuel injection systems since the mid 50s much less the mid 80s...

[PeterRus]

https://en.wikipedia.org/wiki/Lycoming_O-360

Letters are explained; other engines (lycoming) follow similar conventions