small V4 or V6 turbo diesel

Discussion in 'Diesel Engines' started by fpjeepy05, Mar 31, 2011.

  1. fpjeepy05
    Joined: Jan 2010
    Posts: 146
    Likes: 4, Points: 0, Legacy Rep: 31
    Location: Connecticut

    fpjeepy05 Senior Member

    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?
     
  2. Karl2
    Joined: Feb 2005
    Posts: 67
    Likes: 1, Points: 0, Legacy Rep: 34
    Location: Right Coast

    Karl2 Junior Member

    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
     
  3. fpjeepy05
    Joined: Jan 2010
    Posts: 146
    Likes: 4, Points: 0, Legacy Rep: 31
    Location: Connecticut

    fpjeepy05 Senior Member

    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.
     
  4. Submarine Tom

    Submarine Tom Previous Member

    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
     
  5. fpjeepy05
    Joined: Jan 2010
    Posts: 146
    Likes: 4, Points: 0, Legacy Rep: 31
    Location: Connecticut

    fpjeepy05 Senior Member

    Yeah I was looking at the Rotary Engines actually.
     
  6. Karl2
    Joined: Feb 2005
    Posts: 67
    Likes: 1, Points: 0, Legacy Rep: 34
    Location: Right Coast

    Karl2 Junior Member

    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
     
  7. fpjeepy05
    Joined: Jan 2010
    Posts: 146
    Likes: 4, Points: 0, Legacy Rep: 31
    Location: Connecticut

    fpjeepy05 Senior Member

    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. :(
     
  8. Submarine Tom

    Submarine Tom Previous Member

    That's okay, they hate you too!

    -Tom
     

  9. copenhagen
    Joined: Apr 2011
    Posts: 22
    Likes: 2, Points: 0, Legacy Rep: 52
    Location: copenhagen

    copenhagen Junior Member

    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/Cumm...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.