Page 1 of 2 12 LastLast
Results 1 to 10 of 15
  1. #1
    Platinum Member JSUnlimited's Avatar
    Join Date
    Mar 2005
    Posts
    657
    Location
    Ohio
    Tractor
    New Holland

    Default More power?

    Although the answer is to buy a bigger tractor, in all seriousness was wondering something.

    Is there anyway to "tweak" a little more power of of these little diesel engines?

    How could a guy get more dependable power from one of these little engines? Injection timing, exhaust, turbo, what?

  2. #2
    Elite Member wushaw's Avatar
    Join Date
    Mar 2005
    Posts
    3,075
    Location
    Bristol Texas
    Tractor
    Kubota L2800, 15 hp 372 Mitsubishi

    Default Re: More power?

    I'm just wondering why you need more power. I will spin the tires before the engine bogs.

  3. #3
    Gold Member uhmgawa's Avatar
    Join Date
    May 2003
    Posts
    283
    Location
    New Hampshire
    Tractor
    Kubota L48TLB

    Default Re: More power?

    </font><font color="blue" class="small">( Is there anyway to "tweak" a little more power of of these little diesel engines?)</font>

    Perhaps but you will then be in a position to find the next
    "weakest link" in the power train. Hopefully it will be in
    an inexpensive location.

  4. #4
    Silver Member TillerofdaEarth's Avatar
    Join Date
    Dec 2005
    Posts
    125
    Location
    Springtown, Texas
    Tractor
    2005 Montana 5740 w FEL

    Default Re: More power?

    If your warranty is expired, you can always crank up the fuel injection pump a tad. Just ask your friendly Diesel Mechanic how to make the adjustment, and don't do to much. You just need to weigh out the risks versus rewards by doing this.

  5. #5
    Super Member 3RRL's Avatar
    Join Date
    Oct 2005
    Posts
    6,813
    Location
    Foothills of the Giant Sequoia's, California
    Tractor
    55HP 4WD KAMA 554 and 4 x 4 Jinma 284

    Default Re: More power?

    There were a couple of threads on the subject. I ended up making a slight injector pump change and got a snappier response and a little more power. Not being a diesel mechanic, I was afraid to do much and only made minor adjustments.

    THIS is one of the links, if you're interested.


  6. #6
    Elite Member
    Join Date
    Jul 2003
    Posts
    3,373
    Location
    Goffs Corner, KY
    Tractor
    IH 2444

    Default Re: More power?

    Yes you can crank up the injectors, and if you go too far it can become an expensive tweak. I would also suspect a somewhat shorter engine life with smaller tweaks...
    I just try to keep my engines running per manufacturers specs, things seem happier that way [img]/forums/images/graemlins/smile.gif[/img]
    Ben

  7. #7
    Elite Member RalphVa's Avatar
    Join Date
    Dec 2003
    Posts
    4,004
    Location
    Charlottesville, VA, USA
    Tractor
    JD 1025, previously Gravely 5650 & JD 4010

    Default Re: More power?

    Switching to synthetic oil will give you 3-4% more power (and about that much less fuel consumption). That's why the racer drivers like it.

    Ralph

  8. #8
    Platinum Member JSUnlimited's Avatar
    Join Date
    Mar 2005
    Posts
    657
    Location
    Ohio
    Tractor
    New Holland

    Default Re: More power?

    I was just wondering. It seems that I always try to find ways to make something just a little better.

    I usually run out of power before traction. I noticed that under loads, I don't get much black smoke as I would have thought. My old kubota which was 7hp less than this NH would blow the black smoke and it seems as though it had much more power than this NH does.

  9. #9
    Platinum Member
    Join Date
    Mar 2005
    Posts
    757
    Location
    Richfield, Wi
    Tractor
    Resident Architect

    Default Re: More power?

    I just mounted a turbo on my little 13hp Yanmar. I havn't finished the installation yet, but the turbo is mounted. The next step will be to measure the exhaust temps with engine naturally aspirated and compare those temps to the turbo charged engine. I can then add fuel to matain the temps. My biggest problem was trying to find a small enough turbo. I found a tiny one (easily fits in my palm) but initial results are suggesting that it's still too large.

    I can tell you that just adding fuel to a naturally aspirated engine will give you higher exhaust temps. The temps need to stay below 1100 degrees sustained or damage will result. To bring the temps down, you need to add air. This is easily done on a turbo charged engine by adjusting the wastegate. There isn't much you can do on a naturally aspirated engine to increase the airflow. The black smoke is unburned wasted fuel. To continuously make black smoke is just wasting money. However, diesels will often smoke black when they run rich in anticipation of boost. If you do fiddle with the pump, keep track of your changes and try to keep the engine from smoking.

  10. #10
    Elite Member Dmace's Avatar
    Join Date
    Oct 2005
    Posts
    3,838
    Location
    Wakefield, NH
    Tractor
    Kioti CK20 HST

    Default Re: More power?

    </font><font color="blue" class="small">( To bring the temps down, you need to add air. This is easily done on a turbo charged engine by adjusting the wastegate. )</font>

    Technically, you are not going to get lower exhaust temps by adding air with a turbocharger, unless you run an intercooler also.
    A turbocharger is just a small air compressor and as you compress the air it gets hotter. This hot air charge needs to be cooled before entering the engine or else your just forcing more hot air into the engine.

    I would not touch any factory settings or use any add-ons like turbos unless they are factory. If you need more HP, then buy a bigger tractor.
    If you just want a little boost, run synthetic oils and double the dosage of Power Service (White Bottle) and use it all year long as a de-geller and an octane booster.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.