Car engine for outboard

[mortaz]

hi
Do any one used car engine for outboard engine, I mean replacing the old outboard engine with any car engine, I now its difficult but its can be done
I need some one to discuss
thanks


mortaz

 

[BaileysBoat]

Re: Car engine for outboard

It could be done. There's no good reason, but it could be done.

 

[steelespike]

Re: Car engine for outboard

Some of todays 4 stroke outboards are based on automotive engines.
The Homelite Bearcat 4 stroke From the 60s was based on the Crosley
car engine from the 50s.Sure you could do it but why.Many years ago someone was the first to put a Chevy V8 in a motorcycle.
Someone in California made a Trike motor cycle out of a Tractor trailer rig.
There's allready V8 outboards.

 

[CATransplant]

Re: Car engine for outboard

I suppose it could be done, but why bother? Problems with tipping an automotive engine to a vertical position would include the oil system, since you couldn't use a standard oil pan and oil pickup from the pump. If it was carbureted, you'd be in big trouble, since a vertical engine needs a side-draft carb.

Still, I wouldn't be at all surprised if some of the V6 and V8 outboards use engine blocks from one japanese auto engine or another. Nissan, Suzuki, whatever. But that's where the similarity would probably end.

Of course, I/O units almost all use auto engine blocks as their starting point.

 

[ohm116]

Re: Car engine for outboard

I think some of the larger modern Honda outboards use use Honda Civic blocks.

 

[JB]

Re: Car engine for outboard

As mentioned, several modern 4 stroke outboards are based on vehicle engines. Honda and Suzuki are most prominent, because they made the vehicles that originally used the engines. My DF70 was a Samurai engine.

In addition to the Bearcat 55, which was based on the Crosley, the Bearcat 85 was based on a Coventry Climax 1100cc racing engine. Lou Fageol developed the engine (Fageol 44), sold it to Homelite who bumped it to 55 then sold it to Fisher-Pierce who renamed it the Bearcat 55 and developed the Bearcat 85.

Finally, some guy who I don't remember the name of made outboards using Corvair and VW boxer engines. Actually saw one of the Corvair outboards; it was intolerably loud.

 

[ohm116]

Re: Car engine for outboard

Mazda 13b rotary with a big jet pump attached to the LU Now that would be intolerably loud.

 

[keith-uk]

Re: Car engine for outboard

So what about a VW air cooled engine?

 

[mortaz]

Re: Car engine for outboard

Thanks for all of you for your feed back

baileysboat thanks for your feed and backup

steelespike please I need to answer on way, the fuel saving well be around 50 to 70%, spare part, and uploading well be easy and thanks for your information.

CATransplant hi first I need to see your old AL boat maybe I not laugh on it. As you now for new project there will be many thing to change be the main point is the thing that we can't see and it well appear after some time and it well cost. Thanks again

Ohm116 thanks for your replaying and if you have more information please I rely need it thanks

JB thanks for your information you rely fresh me in the last words.

Keith-uk the project was vary cool I like to say that I love the hands which improving there and other life

For all we need to discuss more
I now that the outboard need high RPM for long time but in the cars the high RPM well kill the engine, I need to now about inner oil line?

 

[steelespike]

Re: Car engine for outboard

Are you saying that using an auto engine will save 50-70% fuel?
is there some device you are adding?Or do you feel the auto engine will save?
A given horsepower will use
a specific gallons per hour at wot (wide open throttle)ie: 100hp will use about 10 GPH. 10% of the rated hp.By careful set up and prop selection
you can get the most speed and thus range. But the motor will still use
the same 10 gph at wot.
If you remove a 100hp power head and replace it with a 100 hp auto engine it will still use about 10gph. fuel injection and modern day technology does improve this figure but your still about 10gph with a 100 hp.

 

[mortaz]

Re: Car engine for outboard

Lit me pointed in other way
The 2 stroke fuel must be mix with oil in the fuel tank or pump but in the end when its in the chamber they are mixed. 1- the ignition of the mixed fuel is not powered as pure fuel. 2- the technology of 2 stroke is not as good as 4 stroke. 3- the up loading of 4 stroke is open as much as you want

Thanks for your reply

 

[JB]

Re: Car engine for outboard

Either you are confused or I can't read what you are writing, Mortaz.

1. Mixing oil and fuel is old 2 stroke technology. Modern 2 strokes are direct fuel injected.

2. Modern DFI 2 stroke technology is abreast of EFI 4 stroke technology.

3. I have no idea what you mean by "uploading".

If you think an auto engine will use less fuel than a modern outboard to do the same job I am with Steelspike. It doesn't matter whether it is a state of the art DFI 2 stroke or EFI 4 stroke the outboard will do better.

Now, if you are comparing a modern EFI auto engine with an obsolete technology carbed 2 stroke, you might be right, but it would be an answer to a question nobody asked.

 

[prestigegunleather]

Re: Car engine for outboard

to all,

fwiw, the first (probably) car engined OB was (briefly) made in Oklahoma City, OK using an inverted Model T Ford motor in the early 1920s. = if memory serves it was called the TITAN.

my great uncle said that they ran fine (he owned one about 1930) BUT "weighed about as much as a Buick". - i had to chuckle.

yours, PG

 

[1946Zephyr]

Re: Car engine for outboard

I think it would be wild to take a couple of those Evinrude V-8's and put them into a little dragster