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  • 1 wire alternators

    Prose & Conse?

    Discuss. Thanks.

    1973 F-250 460/C6 -Camper Special 1983 Mustang GT 545/C6 - 10.46 @ 130 - Drag Week 2012 - Street Race BB N/A runner-up

  • #2

    Re: 1 wire alternators

    They work on anything.

    Comment


    • #3

      Re: 1 wire alternators

      Pros everything

      Cons I do not know any
      2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
      First to run in the .90s .80s and .70's in SBN/A
      2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
      2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!

      Comment


      • #4

        Re: 1 wire alternators

        what they said

        just converted the 46 truck to a 12 volt system with one

        03 Silverado 2500HD ext. cab short bed 4x4 6.0L: TowMater 92 LeBaron Convertible: Does it run yet?

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        • #5

          Re: 1 wire alternators

          Several guys in my Studebaker club have converted their 6V positive ground Studebakers over to one wire alternators.
          They make more power than generators (the lights don't go yellow at night idling at the corner), and you don't have to fool with polarizing the voltage regulator because it's built in.
          We got the idea from all the Model A guys who converted them over for reliability.
          Be thankful we're not getting all the government we're paying for. - Will Rogers

          Comment


          • #6

            Re: 1 wire alternators

            my buddies crown vic has a gm 1-wire alt in it haha
            formerly 1988montecarloss, 3198 posts
            http://bangshift.com/forum/member.ph...88montecarloss

            Comment


            • #7

              Re: 1 wire alternators

              Have one in the Caprice. Got tired of either the alternator or the external regulator taking a dump. It stopped the fan slowing down, and headlights dimming at idle.
              BS'er formally known as Rebeldryver

              Resident Instigator

              sigpic

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              • #8

                Re: 1 wire alternators

                Con: It's another GM part on your Ford.


                That's the best I've got =P
                Escaped on a technicality.

                Comment


                • #9

                  Re: 1 wire alternators

                  BBR, I believe there is a kit to convert the Ford G series alternators to single wire. The early Mustang guys use the 5.0 100 & 130 amp versions with adapter kits and I seem to recall a conversion kit to make them single wire. If you already had a G series, you could get the harness kit. IIRC, pretty cheap.

                  Found this for the 45-65 amp 1G maybe some one makes it for larger 3G alternators.

                  http://www.ebay.com/itm/VOLTAGE-Regu...r#ht_619wt_956
                  Last edited by Huskinhano; April 7th, 2012, 07:45 AM.
                  Tom
                  Overdrive is overrated


                  Comment


                  • #10

                    Re: 1 wire alternators

                    I think I'm famous for alleged alternator over kill but I put this one on after the DW fiasco with the MSD unit last year. Its Powermasters improved version of the 200 Amp 1999-2004 Mustang Cobra alternator and stock ones are pretty available thorugh auto parts stores for on road swaps should that become necessary. It does use an exciter wire but that's no big deal as your car already has that circuit. So its a two wire alternator. I used a PM GM one wire 130 amp before I bought the the MSD, and after it died at DW (five years later)I bought a used PM 130 amp from a friend of the O'reily auto parts manger in Topeka. Why ? because all they stock now are 65 amp one wire GM alternators. No good for an EFI car with electric fans, waterpump, fuel pumps etc.



                    The GM one wires are good stuff and I have had no issues, but 200 amp new style Ford with exciter which keeps the voltage up at idle and everything electrical happy in hot weather & bad traffic at night, is hard to beat.
                    Drag Week 2012 - Winner Street Race Big Block Naturally Aspirated - Big hat no horses Drag Week 2013 - Watching the live feed Drag Week 2014 - Maybe I'll go faster with a 1000 fewer pounds?

                    Comment


                    • #11

                      Re: 1 wire alternators

                      Read this by Mark Hamilton of Mad Electrical
                      http://www.madelectrical.com/electri...hreewire.shtml

                      Comment


                      • #12

                        Re: 1 wire alternators

                        This was an interesting read and I'll admit it reinforced the view I already re the benefit of using the exciter wire circuit as available in the Ford cars under discussion.

                        Is that a fair answer James?
                        Drag Week 2012 - Winner Street Race Big Block Naturally Aspirated - Big hat no horses Drag Week 2013 - Watching the live feed Drag Week 2014 - Maybe I'll go faster with a 1000 fewer pounds?

                        Comment


                        • #13

                          Re: 1 wire alternators

                          I'm not a fan of one wire. I have one on the Buick, and the Chev pickup... the Buick, is easy enough to live with - the pickup, I'm mad at myself for being talked into it. Whenever I winch, whenever I'm at idle and the converter is powering the air compressor or welder I can tell when the batteries are starting to die because the generator simply can't keep up and loses its field. I suppose if I didn't notice, I could literally kill the motor if the batteries got low enough to drop the pin into the pump (the diesel uses a pin to block the fuel flow to shut the motor off that's held with a magnetic field).... so no, not a fan.
                          It only takes one aweshit to erase a dozen attaboys

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                          • #14

                            Re: 1 wire alternators

                            Yes I read the the other day. Not being an electrical engineer, I assume he has some valid points. My normal thought process though is actual user input trumps theory 9 times out of 10. That's why I asked here.

                            The 3 wire may very well be technically 'better', but does that 'better' really translate to any end-user benefit? based on things I have read, I am having a hard time seeing that it does for normal passenger car applications.

                            I am just thinking of upgrading the alternator (Ford 1g) on the Mustang because I think it is dying or is simply under powered. I have no idea what it is out of or even what it's output is. I did drive the car for 45 minutes the other day in stop/go traffic and when I was ready to leave my destination, I had to jump start it. I thought it was just heat soak making it hard to start, but went out yesterday and tried to crank the car and the battery was too weak to turn it over. The battery was new in October of last year so I'm guessing the alternator is just not keeping up with the electric fan and electric fuel pump. I want to upgrade to at least 100 amps and thought a 1 wire would be a quick/easy/inexpensive way to do that (and subsequently eliminate some of that *wonderful* early 80's Ford wiring). I'm not worried about a GM part on my Ford, I just want something that works well.
                            Last edited by BBR; April 9th, 2012, 08:31 AM.

                            1973 F-250 460/C6 -Camper Special 1983 Mustang GT 545/C6 - 10.46 @ 130 - Drag Week 2012 - Street Race BB N/A runner-up

                            Comment


                            • #15

                              Re: 1 wire alternators

                              I see anything 1 wire and wonder what the cheapskates did with the backside.

                              from choke on a carb, to alternator, to gauges stabbed into the block..
                              the one wire stuff has a risk. Maine is a lunatic with it. drain the battery in the car next to it charging your own.

                              diodes are young in comparison to 1 wire stuff..another thing to play with.(I just learned what to do with diodes)

                              I worked on old planes, I first learned of it. You can't just do whatever the heck you want and think the breeze is going to clean off the reaction everytime.

                              an indicator it is in fact cheapskate... they could do the one wire to a fuel pump, but somebody drew the line as they invented it...made it all 2 wire.
                              Atomization is excitement, not temperature.

                              Comment


                              • #16

                                Re: 1 wire alternators

                                Yes I read the the other day. Not being an electrical engineer, I assume he has some valid points. My normal thought process though is actual user input trumps theory 9 times out of 10. That's why I asked here.

                                The 3 wire may very well be technically 'better', but does that 'better' really translate to any end-user benefit? based on things I have read, I am having a hard time seeing that it does for normal passenger car applications.

                                I am just thinking of upgrading the alternator (Ford 1g) on the Mustang because I think it is dying or is simply under powered. I have no idea what it is out of or even what it's output is. I did drive the car for 45 minutes the other day in stop/go traffic and when I was ready to leave my destination, I had to jump start it. I thought it was just heat soak making it hard to start, but went out yesterday and tried to crank the car and the battery was too weak to turn it over. The battery was new in October of last year so I'm guessing the alternator is just not keeping up with the electric fan and electric fuel pump. I want to upgrade to at least 100 amps and thought a 1 wire would be a quick/easy/inexpensive way to do that (and subsequently eliminate some of that *wonderful* early 80's Ford wiring). I'm not worried about a GM part on my Ford, I just want something that works well.
                                The practical aspect is the amount of output the alternator will have at idle or slow stop and go traffic on a hot day. What I saw with the first one wire I had was very low voltage at idle and say 1700 -2000 RPM. I had similar starting issues after a similar drive to what you described. A smaller pulley helped and fortunatly the Powermaster unit was set up so that a (second) exciter wire could be connected by pulling off the small rubber plug on the back of their 130 amp alternator.

                                Never the less after running through the load calculations, (MSD used to have a cheat sheet on their web site, I'm sure others do too) I saw the overall load was more than 130 amps so that was when I bought the MSD unit. As previouosly posted it worked perfectly unitl DW 11 when it just died at the same time I tossed the alternator belt. I don't know which happened first but it still spun, so it didn't freeze up.

                                So after reading about the output levels of the PowerMaster units, they send a card that shows what your particular unit did on their test bench, I bought the 200 Amp unit. I know it sounds excessive but with the exciter wire its rated to output 140 amps at the speed my car idles at with 2.8 pulley ratio. This just covers the fans, pumps, ignition etc. So now driving around I see 14-14.2 consistently on the voltmeter guage and which is backed up by the datalogs. No starting issues after driving at WOT for the road course and the drag slalom or a bunch of start-ups and shut-offs testing the cooling system.

                                Your needs and results may vary.
                                Last edited by CDMBill; April 10th, 2012, 08:39 PM.
                                Drag Week 2012 - Winner Street Race Big Block Naturally Aspirated - Big hat no horses Drag Week 2013 - Watching the live feed Drag Week 2014 - Maybe I'll go faster with a 1000 fewer pounds?

                                Comment


                                • #17

                                  Re: 1 wire alternators

                                  I don't have any insight into your question, but I'm using a 130amp 3g alternator that was intended for an early/mid 90's Taurus.
                                  This is on the Ranger. It fit the stock Mustang bracket, and I got a good deal on it- someone purchased it new and sold the car, that sort of thing.
                                  1997 Ranger 5.0L HO, GT40 heads/tubular intake, 65mm TB, 1.7rr, B303, Tri-Y headers, dual 2.5" exhaust, Flowmaster mufflers, T5 trans, Tri-Ax shifter, CenterForce Dual Friction clutch, 8.8 Traction Lok 3.55 gears, Cobra 13" front brakes, Cobra 11.65" rear discs.
                                  1997 Mustang GT
                                  sigpic


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                                  • #18

                                    Re: 1 wire alternators

                                    Bill, you kick ass.

                                    1973 F-250 460/C6 -Camper Special 1983 Mustang GT 545/C6 - 10.46 @ 130 - Drag Week 2012 - Street Race BB N/A runner-up

                                    Comment


                                    • #19

                                      Re: 1 wire alternators

                                      I pulled the alternator out of the Mustang in preparation of swapping water pumps and the only identifying mark on it was "Autolite" cast into the back. I have no idea what it's out of or it's output, but it looks pretty darn old. I almost had forgotten Autolite even made alternators.

                                      1973 F-250 460/C6 -Camper Special 1983 Mustang GT 545/C6 - 10.46 @ 130 - Drag Week 2012 - Street Race BB N/A runner-up

                                      Comment


                                      • #20

                                        Re: 1 wire alternators

                                        BBR - if you have a "clamp on" inductive ammeter - you can test directly what the output of the alternator is at different rpm with different loads on, then make a purchase decision from there.

                                        Summit used to sell alternator kits - I got one when I put an MSD and unilite in my '70 mach1 years ago, I haven't seen them for sale in a long time but I haven't looked for them specifically. You might be able to upgrade yours without having to change wiring and bracket/pulley set ups.

                                        Found this after some quick googling:

                                        http://www.aspwholesale.com/index.ph...wCat&catId=652
                                        Last edited by milner351; April 10th, 2012, 12:05 PM.
                                        There's always something new to learn.

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