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  #1  
Old 03-31-2011, 11:29 AM
fpjeepy05 fpjeepy05 is offline
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small V4 or V6 turbo diesel

Does anyone make a low profile 100-200hp diesel? V4, V6 horizontal oppossed 4, 6? Something small to replace a merc 3.0 (21 inch height) Seems like a yanmar 4jh is 125hp and 27 inches tall, but a vw v8 is 350hp and 29 inches tall. Why isn't there something shorter in the low horsepower?
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  #2  
Old 04-01-2011, 09:55 AM
Karl2 Karl2 is offline
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Volvo's D3 is a tad under 21" from crank shaft center to top of motor. Yanmar's BY series 21.5" from the crankshaft center to the top of the motor. The Volvo is offered in 140, 170, 200 and 220 hp. The Yanmar in 150 and 180 hp.

Karl2
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Old 04-03-2011, 01:20 AM
fpjeepy05 fpjeepy05 is offline
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Quote:
Originally Posted by Karl2 View Post
Volvo's D3 is a tad under 21" from crank shaft center to top of motor. Yanmar's BY series 21.5" from the crankshaft center to the top of the motor. The Volvo is offered in 140, 170, 200 and 220 hp. The Yanmar in 150 and 180 hp.

Karl2
I'm looking more for over all height being in the 18-20 inch range. I've been looking and still finding nothing. Maybe if someone would marinize the new Subaru Boxer diesels, or maybe the Ecomotor OPOC might be out soon.
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  #4  
Old 04-03-2011, 01:51 PM
Submarine Tom Submarine Tom is offline
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Sounds like you shouuld be looking for a flat, opposed engine not a "V" at all.

Try VW or what about some of the motor cycle engines, they get up to 100Hp+!

Oops, those certainly aren't diesels now are they...

-Tom
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Old 04-03-2011, 03:41 PM
fpjeepy05 fpjeepy05 is offline
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Quote:
Originally Posted by Submarine Tom View Post
Sounds like you shouuld be looking for a flat, opposed engine not a "V" at all.

Try VW or what about some of the motor cycle engines, they get up to 100Hp+!

Oops, those certainly aren't diesels now are they...

-Tom
Yeah I was looking at the Rotary Engines actually.
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  #6  
Old 04-04-2011, 07:35 AM
Karl2 Karl2 is offline
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Quote:
Originally Posted by fpjeepy05 View Post
I'm looking more for over all height being in the 18-20 inch range. I've been looking and still finding nothing. Maybe if someone would marinize the new Subaru Boxer diesels, or maybe the Ecomotor OPOC might be out soon.
Sounds like you are looking for something that does not exist. A flat, 100-200 hp, turbo charged diesel would carry with it some considerable application challenges in a marine application. Challenges that may be one of the reasons nobody is doing it. A couple of examples:
Depending on how it is configured you would have either the exhaust or the intake side facing the bilge. Not sure what configuration I would prefer - Like choosing between plague and cholera.

The width of the engine would be at the crankshaft center line. This could present a problem in a twin installation, deep V bottom.

For a one-off, special application it may be a workable option but I don't think you will see a flat four (or six) mass produced for marine propulsion applications.

Karl2
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Old 04-06-2011, 11:12 PM
fpjeepy05 fpjeepy05 is offline
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Quote:
Originally Posted by Karl2 View Post
Sounds like you are looking for something that does not exist. A flat, 100-200 hp, turbo charged diesel would carry with it some considerable application challenges in a marine application. Challenges that may be one of the reasons nobody is doing it. A couple of examples:
Depending on how it is configured you would have either the exhaust or the intake side facing the bilge. Not sure what configuration I would prefer - Like choosing between plague and cholera.

The width of the engine would be at the crankshaft center line. This could present a problem in a twin installation, deep V bottom.

For a one-off, special application it may be a workable option but I don't think you will see a flat four (or six) mass produced for marine propulsion applications.

Karl2
Yeah you got me there I guess. Diesel's just aren't really meant to be compact, at least not in marine applications, or small hp marine applications... But I hateeeeeeee Gas.
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  #8  
Old 04-07-2011, 12:59 AM
Submarine Tom Submarine Tom is offline
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That's okay, they hate you too!

-Tom
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  #9  
Old 05-13-2011, 12:06 PM
copenhagen copenhagen is offline
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The boxer diesel isnt lower than any other automotive diesel (they have mooved all the crap up on top of it)

how much room do you have 18 or 20 inches, and how much room above crank level??

it would appear that the best way of doung it would be to either find an automotive diesel and perpaps shortening the oilpan or if you really really needed it to be 18 inches tall, buying an inline 4 or 6 and laying it on its side, but thar would require modifying the oiling to dry sump which costs a grand or two depending on parts and your skills

a Jonn Deere engine would propably be well suited as you could add scavenging ports to all the sheetmetal covers on the left side of the block and plumb them to the scavenging pump

a dry sump would also facilitate oilchanges

or how about this one: for that price a couple of grand at the local racing engine builder flipping stuff 90 degrees and building a dry sump oiling system seems within reason
http://cgi.ebay.com/ebaymotors/Cummi...Q5fAccessories
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