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Scutty

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Scutty last won the day on April 26

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Boat Info

  • Boat
    2007 Malibu rLxi

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  • Location
    Maine, USA

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  1. 2007 Malibu rLxi, 340 Monsoon with a GM MEFI-5. I have no connections or dependencies on the Perfect Pass. (that'll be the next project) I'm still hacking on the functionality but yes I added fuel used counter that accumulates up, fuel level counter that counts down. I set the current input manually. So when I add 10 gallons I go to the config screen and input how much fuel I added. Then it counts down from there until I zero everything or add more fuel to the counter. I also display instantaneous real-time fuel consumption to the main display. It's pretty cool to see how different conditions affect fuel consumption.
  2. Quick update. I recently added native, Scangauge like, functionality to calculate fuel usage. It is ridiculously accurate. Add 5 gallons and watch it tick down in 0.1 gal increments. Longer time accumulation time would be even more accurate since you have to calculate fuel usage per sample period based on instantaneous GPH. I'm using 30 sec update rate and it works great. The raw data is found in the 65500 J1939 CAN message. If you unpack the 8 data bytes look for: Byte 1: must = 0x01 << there are multiple message types that use the same 65500 ID. This needs to bey "message 1" Byte 4 and 5: This is where the raw GPH info is. Two bytes. The 5th byte is the high byte, 4th is the low byte. Then divide by 256
  3. Quick update, so far so good. I've put a few hours on the boat, half dozen pulls, multiple heavy rain storms and some 90+ days baking on the lift. No issues. I was able to figure out a few more of the Medalion data packets. My original gauges were run off a Medallion miniMMDC v3.4 702-00009-01. This unit drives the analog gauges with a digital serial bus. The serial line is basically RS-232. Each "message" has an ID, data and check sum. There are 8 data messages that come out at different rates. BE: RPM /4 4C: always zero, not used? B2: Speed /20 (mph) (my boat uses a paddle wheel) 64: Oil Pressure (psi) A8: Battery Volts /20 6E: Coolant Temp (deg F) 60: Fuel level /2 (%) E9:Depth/10 (ft), Air Temp/10 (degF), Lake Temp/10 (deg F), Oil/10 (psi), Volts/10, Engine Hours/10 Also remember if you make a connector to pull the CAN data off the engine diagnostic port and you want to run a speed controller (i.e. perfect pass) remember to add the jumper from pin B to F. This is an important one I forgot. 6-Pin ECM CAN diagnostic connector: Pin A: 12V Pin B: GND Pin C: CAN-Hi Pin D: CAN-Lo Pin E: N/C Pin F: Connect to ground to use speed controller
  4. Anything that is pre-packaged with any meaningful water resistance spec is going to be at a very different price point. As it is this raw display is >$150. I focused on good high brightness and operating temperature range. This one is good from -20 to 70C and 90% RH. It also has good specs for shock, vibration and esd. If you look at the CAD file I posted of the aluminum bezel you can see the screen sits in a recess and overlaps the glass. I added a thin foam gasket so the bezel seals tight against the glass. On the back I made a plastic cover that is also sealed to the back of the bezel. The whole set up is fairly well protected from the rain the way this dash is built from the factory. I'll let you know how I make out this summer.
  5. That sounds like a great project. That's a big bump going from MEFI 4 to 5. I'm sure the group here would love to see a post on this conversion. I'd like to learn more about how you went about it, cost, time etc.
  6. Here are the off-the-shelf parts. I probably have another $100-$150 in materials for the aluminum bezel and other misc parts. Paying up for a high brightness, transflective, sunlight readable display is worth the $. https://amzn.to/3i1wLMB Main Arduino CPU: (discontinued) https://copperhilltech.com/arduino-due-based-ecu-development-board-with-two-can-bus-ports/ (alternative) https://copperhilltech.com/arduino-based-ecu-development-board-with-dual-can-bus-interface/ $86 Sdcard Interface https://www.adafruit.com/product/254 $7.50 Display: https://www.digikey.com/short/3v223dnp $171.00 GPS Module: https://www.seeedstudio.com/Grove-GPS-Air530-p-4584.html $12 external antenna $10 Compass Module: https://www.amazon.com/gp/product/B07PP67N9Q/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=ll1&tag=wakegarage-20&linkId=a5a03ef8c3c85d4dc0bce7b54ecfd081&language=en_US $10 DC-DC Converter: https://www.amazon.com/gp/product/B07BDJZ1X6/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=ll1&tag=wakegarage-20&linkId=cdd0f21aff6ed02156a3926816792ed7&language=en_US $9 ECM OBD Connector: https://obd2allinone.com/products/m5diag.asp $10 Medallion Connector https://www.eficonnection.com/home/product/caspers-4-way-black-metri-pack-150-sealed-male-connector $12
  7. This project will never be completed but I'm going to post "Gen 1" to archive what I have so far. This is my custom touch screen gauge panel my '07 malibu response. My goal with this project is to use as much open source and off the shelf hardware and software as possible. I did, unfortunately, have to use some proprietary information so I can't publish the source code. But I am willing to share what I can and collaboration with anyone here. Just reach out. Here is a before picture of the driver side dash: The new gauge panel receiver is CNC'd out of 3/8" thick 6061. I stripped and refinished the switch panels to match. I decided to go with a brushed look. The perfect pass and the malibu digital gauge fit into the new pockets and the new touch screen installs from the rear: A cover protects the screen and the ribbon cable reaches to a weather proof box that holds all the new electronics. The guts of the system are built on an Arduino Due core module from copperhilltech.com. It has a wide range DC input and an integrated CAN interface. I added a GPS module for upgraded GPS speed, a digital compass, and an interface to the medallion computer. The interface to the medallion MDC is the only custom electronics in the box. I needed a level shifter and went ahead and used an optical isolator for a bit of added protection. So far I have three data screens. The main gauge display: All the CAN bus data available on my GM MEFI-5 vintage ECM: The last screen shows all the information available from the MDC, GPS and Compass modules: Hope I'm not breaking any site rules with a small video but the pictures don't do it justice. This first run in on a fake-a-lake in the driveway. I'm super happy with how bright and responsive the display is. Some of the data updates are almost too fast. I may have to add some filtering to slow it down. VID-1619301016749.mp4
  8. The dash pieces were probably the hardest and most time consuming part of this project but it's worth it. The formed vinyl -look plastic they use at the factory looks cheap IMO and doesn't match the rest of the boat. I pulled everything out of the parts, all the gauges, steering column, speakers, throttle...everything. Once I had the raw parts I peeled off the covering and the original foam to get all the way down to the raw plastic. I used 3M #80 Rubber and vinyl spray adhesive to glue down 1/4 foam. Here is a link: https://www.miamicorp.com/products/FOAM/CLOSED-CELL/LANDAU FOAM.aspx This foam can be shaped and sanded with a palm sander to feather in the edges. Sew up a new skin with new vinyl using the old skin as a pattern. Use the spray glue contact cement to glue the new skin in place. The factory uses a very flexible, formable vinyl for this. The heavy stuff you used for your seat doesn't form as easily. I needed to add a few tucks and a few more seams to make some of the tighter turns. I'm actually thinking of doing mine over again. This was the first time I did something like this and there are a few mistakes that still piss me off. If get back around to it I'll post some more pics along the way. FWIW I have experimented with the SEM vinyl paint. It's not a bad product but the couple of parts I used it on for a previous boat project did not last. It started to fade and bleed through after the second season. Not worth it IMO.
  9. A couple more sites maybe for the resource page: https://www.bakesonline.com/ and https://www.greatlakesskipper.com For this project: electric heating elements to add heated drivers seat, new pullout heat vent tubes, new function specific switch covers (lights, music, seat heat etc) Also added this cool flip up front nav light: https://www.bakesonline.com/bow-light-malibu-boats-roll-over-hidden-bow-light.html
  10. Here's my 2019 winter project. Complete re-skin of all vinyl and carpeting. Equipment: -Vintage used Pfaff walking foot sewing machine, 6mm stitch, retro fitted with a 3:1 step down pulley and servo motor for ultra slow speed control -Fasco F1B Fine wire stapler Main sources for materials: Miami corps: https://www.miamicorp.com/ Sailrite: https://www.sailrite.com Materials: 7 YD Beluga Pearl Grey 15 YD Marlin Pure White 3 YD Beluga Blackbeard 6 YD Morbern Shock Horsepower Blue Before (left) : After (right)
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