EGT and Boost via nmea2000

Discussion in 'Diesel Engines/Drives/Transmissions/Props' started by Irie308, Oct 18, 2021.

  1. craigswardmtb

    craigswardmtb Active Member

    292
    Jul 2, 2013
    Mystic, CT
    2004 420 DB
    2005 360 Fiesta Vee
    Cummins 6CTA
    We are in. I brought the boat around last Saturday. Just finished polishing the topsides yesterday. We were going to do a weekend on Block for Mothers day, but the weather is not cooperating.
    When are you splashing?
     
  2. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Have been in at homeport since first week of April but now waiting for a window to do the 50 mile cruise to Mystic.
     
  3. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Finally got the chance to take the boat for a cruise. Aside from one of my egt sensors dropping off over a a certain temp, all worked well. Have a bit of calibration to do on the coolant and oil pressure sensor but very happy so far with the upgrade.
    B9BCF733-4BD4-4C66-9458-B53977C39989.jpeg DDCA9E59-F304-4284-933A-58F6A13F1ABA.jpeg
     
  4. Blown284

    Blown284 Active Member

    911
    Jan 12, 2014
    Chesapeake Bay
    2004 SeaRay Sundancer 460
    Cummings 480CE
    How’s it been working for you? What has been a normal EGT?
     
  5. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Have only run the boat a few times at cruise and wot but my average egts at cruise 2200 rpm was around 830. WOT is about 870. Trawler speeds 12-1300 rpm are about 500-550. First run was solo and my trip to our summer slip was in dense fog so will get averages on next run when I can focus on the numbers.
     
  6. Blown284

    Blown284 Active Member

    911
    Jan 12, 2014
    Chesapeake Bay
    2004 SeaRay Sundancer 460
    Cummings 480CE
    aeesome thank you
     
  7. boaterholic

    boaterholic Active Member

    352
    Jan 2, 2021
    Welaka, FL
    2005 420 Sedan Bridge (in purchase process)
    Diamond Performance Series 430HP 6CTA 8.3M's
    Irie,
    Do what model Garmin MFD are you using? Do you know if my 1243xs would also be capable of displaying engine parameters like yours?
    Where you installed sensor for boost was there already a bung there or did you have to drill and tap? I won't be at boat for a few days and can't check.
    Your posts have me really wanting to at least get going with boost and EGT's. Also with your rudder angle what sensor are you using? Wondering if the autopilot sensor for the old Raymarine autopilot could feed the info but imagine a convertor from 0183 to 2000 would be needed.
     
  8. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    I’m running a 8616 and a 1222. Your 1243 will surely display the same. I removed air temp sensor for grid heaters. So the boost sensor fits in its place. I’m also still using my factory raymarine autopilot and rudder angle indicator via an 0183 converter.
     
  9. boaterholic

    boaterholic Active Member

    352
    Jan 2, 2021
    Welaka, FL
    2005 420 Sedan Bridge (in purchase process)
    Diamond Performance Series 430HP 6CTA 8.3M's
    Ok thanks for the info! For the rudder angle 0183 converter, and again not being able to go to boat for few days, were did you get tap the 0183 wires at? Did you use one of the converters from Across Oceans or?
    Thanks again.
     
  10. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    If memory serves I’m coming off the tridata with raymarine’s st/stng converter to nmea. Did that a few years ago so haven’t had to modify since not motivated to change autopilot anytime soon. Hope that helps.
     
  11. boaterholic

    boaterholic Active Member

    352
    Jan 2, 2021
    Welaka, FL
    2005 420 Sedan Bridge (in purchase process)
    Diamond Performance Series 430HP 6CTA 8.3M's
    Yes thanks - will look behind the autopilot head and if no individual wires maybe try piggy backing off the NMEA 0183 wire block and see if it picks up there. Will look into converters.
     
  12. boaterholic

    boaterholic Active Member

    352
    Jan 2, 2021
    Welaka, FL
    2005 420 Sedan Bridge (in purchase process)
    Diamond Performance Series 430HP 6CTA 8.3M's
    A thought came to me this morning - my Garmin 1243 is connected to the auto pilot via 0183. So should I be able to get the rudder info and would the autopilot need to be powered on to send the info to Garmin? I’m guessing I could go to Garmin settings and look for data overlay edit page and see when I get back to bot.
    Thanks
     
  13. alnav

    alnav Well-Known Member

    Sep 16, 2009
    West River, MD
    40 MY
    QSB 425
    Boaterholic, sounds like you’re planning to install a Smartcraft-to-NMEA 2000 converter of some sort to get your engine data? If so, and your OEM Smartcraft has a rudder sensor ( I think most do), then you should see rudder data from there post-install. In my case I have rudder angle coming in from both Smartcraft and my autopilot and can pick which source Garmin will use.
     
  14. boaterholic

    boaterholic Active Member

    352
    Jan 2, 2021
    Welaka, FL
    2005 420 Sedan Bridge (in purchase process)
    Diamond Performance Series 430HP 6CTA 8.3M's
    I h
    i have mechanical engines so no smartcraft.
    The converter I was referring to is one of several available that converts 0183 to 2000. And some will also convert the other way.
    Thanks
     
  15. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Now that I’m getting boost and egt numbers. I’m wondering if this can help me ascertain the load in the motors. Egt’s seem to stay around 840-850 at cruise and boost is 19-20psi. We generally have 2 adults and 2 kids on board. Took full crew of about 10 adults and gear out this past weekend and the numbers were exactly the same. So my question is how do I use these numbers to see how I’m loading the motors? Is this possible with just egt and boost? I would have expected to see my boost a bit higher when fully loaded.
     
    dtfeld likes this.
  16. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
    You need to locate the EGT curves for your engines, and compare the numbers for any given RPM. I'm not as familiar with Cummins, but I have seen these numbers posted, probably on sbmar.com. Tony would know. You need to make sure that the numbers that are published specify the temp probe location (typically after the turbo outlet in marine engines), and you have yours in the same spot. From what I read, Cummins has a prefered spot.

    The biggest issue is you want to be at/below the max EGT's. If your over, your overloading your engine, and likely need to reduce prop pitch. This is also related to making rated WOT RPM. This applies specifically to mechanical controlled marine diesels (as opposed to electronically controlled).

    Once you have established what YOUR boat runs at RPM/EGT/Boost wise, you will notice an increase in both boost and EGT, and speed decrease as you add weight or drag to the boat. I noticed my EGT/boost climbing and my speed at a given RPM down 1-1.5 knts at the end of last season. A short haul reveled a mossy beard growing long and strong. A simple power wash, and all was back to normal.
     
    Last edited: Jun 14, 2022
    Irie308 likes this.
  17. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
    Irie308 likes this.
  18. NJMatt50

    NJMatt50 Member

    225
    Apr 28, 2009
    Jersey Shore
    2005 Sundancer 420. Sea lift platform, Axiom Pro, FLIR.
    Cummins 480ce
    Has anyone installed the Yacht ID sensors on an axiom pro? I got one to read under air temp but I can only get the other one to read using water temp. Can you get the sensors to read under any other setting? I was wondering if there is a way to get them to say EGT?
     
  19. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
    I requested Raymarine add this ability to the Axiom about 3 years ago. One of the latest software revisions supposedly say the PGN is supported, but I can’t get it to display. I’ve given up on Raymarine and EGT.

    I choose Maretron as they can display EGT.
     

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