PC8 Question

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  • cp___32
    • Jan 2026

    #1

    PC8 Question

    Hello,
    I've seen a few people on here have installed a Power Center 8 (PC8) fuse box. I've already pulled the original glass fuse box and replaced it with a blade fuse holder from NAPA that I modded but am less than happy with.
    The PC8 seems like an amazing little unit, very clean and well put together. Does anyone here want to provide some feedback on it?
    They sell just the fuse box and they sell a kit with the box and 30A relay. Would anyone recommend one over the other? The one with the relay seems like it might clean up the coil relay mod perhaps?

    Any/all advice welcome
  • posplayr
    Forum LongTimer
    GSResource Superstar
    Past Site Supporter
    • Dec 2007
    • 23673
    • Tucson Az

    #2
    If you search you will probably find install threads . I'm pretty fire I have posted recommended installation wireing configurations. And yes a relay would clean up much of the power drops but not all.

    Comment

    • posplayr
      Forum LongTimer
      GSResource Superstar
      Past Site Supporter
      • Dec 2007
      • 23673
      • Tucson Az

      #3
      here are some links.





      Comment

      • Steve
        GS Whisperer
        • Jun 2005
        • 35924
        • southwest oHIo

        #4
        Posplayr's last link was to the thread that I started to document the install on my son's 1000G.

        I think it will give you all the pros and cons related to the unit.

        I have now installed one on each of our four GSes, as well as a couple others for other members.

        I highly recommend it.

        .
        sigpic
        mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
        hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
        #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
        #2 son: 1980 GS1000G
        Family Portrait
        Siblings and Spouses
        Mom's first ride
        Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
        (Click on my username in the upper-left corner for e-mail info.)

        Comment

        • cp___32

          #5
          Thanks very much for the replies. I was having difficulty finding much because I was searching variations of "PC8" and adding keywords like fuse and install, but wasn't having much success (mainly because PC-8 is too short of a search string). I see now that searching for "Eastern Beaver" would have netted more results.

          I actually came across that Solid State Power Box and that idea looks pretty slick so I think I am leaning more toward installing one of those instead of a PC8 and doing the coil relay mod.

          Steve: I actually think your post might have been how I found out about the PC8 in the first place. I'd been reading through Good Times' rebuild thread and I think it might have been your post he linked out to.

          It sounds like either option will be money well spent. I'll keep digging. In the meantime gotta get my Kawi running since that's the one with a plate and insurance. Then back to the GS!

          Comment

          • posplayr
            Forum LongTimer
            GSResource Superstar
            Past Site Supporter
            • Dec 2007
            • 23673
            • Tucson Az

            #6
            Steve,
            My plan is at some point to do a redesign of the original SSPB to create a SSPB II. The main visual difference will be the use of terminal screws (like the PC-8) rather than the Molex connector. I looked at your pictures and you seem to have a.)just stripped back the insulation , b.)given the bare copper a twist and c.)inserted it into the screw terminal. Any problems with that?
            I was thinking doing a.) strip and twist as you did then b.) "little" tinning, then c.)give the terminal a little squirt of DeOxit and d.)finish tightening and it would be close to as reliable as any connector with substantially more contact force. You could easily give the terminal strips a little squirt for good measure as part of an annual or multi-year maintenace cycle.
            Jim

            Comment

            • ShadowFocus603

              #7
              Hey Pos I just read through Steve's thread and he did mention that he tinned the wires before inserting them into the PC-8.

              Comment

              • cowboyup3371
                Forum LongTimer
                Past Site Supporter
                • Apr 2010
                • 13996
                • In Ohio Now

                #8
                Originally posted by posplayr
                you seem to have a.)just stripped back the insulation , b.)given the bare copper a twist and c.)inserted it into the screw terminal. Any problems with that?

                Jim
                Posplayer, this is all I did to the Eastern Beaver box I installed on my 550T and haven't experienced any problems with it since. I'm not as smart about this as you or Steve but I can lend my experiences if you want; is there something I should look for to help answer your questions?
                Cowboy Up or Quit. - Run Free Lou and Rest in Peace

                1981 GS550T - My First
                1981 GS550L - My Eldest Daughter's - Now Sold
                2007 GSF1250SA Bandit - My touring bike

                Sit tall in the saddle Hold your head up high
                Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
                and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

                Comment

                • Steve
                  GS Whisperer
                  • Jun 2005
                  • 35924
                  • southwest oHIo

                  #9
                  Originally posted by posplayr
                  Steve, ... I looked at your pictures and you seem to have a.)just stripped back the insulation , b.)given the bare copper a twist and c.)inserted it into the screw terminal. Any problems with that?
                  Originally posted by ShadowFocus603
                  Hey Pos I just read through Steve's thread and he did mention that he tinned the wires before inserting them into the PC-8.
                  Yep, mentioned it part-way through post #3.

                  Originally posted by Steve
                  I had cut the original wires from the stock fuse panel, then connected them to the new panel.
                  I tinned the ends of the wires before clamping them into the new panel.
                  I then ran the wires in the space behind the fuse panel, out to where they would join the wiring harness in pretty much the stock location.
                  In the years since that thread was made, I have not bothered to measure any loss of efficiency in the electrical system on that bike, but we have had NO problems with it, so I am going to assume that it is still OK. I know, it's wrong to assume, but we have had no reason to measure, so I simply have not bothered.

                  .
                  sigpic
                  mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
                  hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
                  #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
                  #2 son: 1980 GS1000G
                  Family Portrait
                  Siblings and Spouses
                  Mom's first ride
                  Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
                  (Click on my username in the upper-left corner for e-mail info.)

                  Comment

                  • posplayr
                    Forum LongTimer
                    GSResource Superstar
                    Past Site Supporter
                    • Dec 2007
                    • 23673
                    • Tucson Az

                    #10
                    Originally posted by Steve
                    Yep, mentioned it part-way through post #3.



                    In the years since that thread was made, I have not bothered to measure any loss of efficiency in the electrical system on that bike, but we have had NO problems with it, so I am going to assume that it is still OK. I know, it's wrong to assume, but we have had no reason to measure, so I simply have not bothered.

                    .
                    No need to be too anal about measuring voltage drop . I was just worndering about duability of other issues since I am looking to do a production design based on a similar method of connection

                    Comment

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