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Technical Alternators that look like generators

Discussion in 'The Hokey Ass Message Board' started by cars2cool, Aug 20, 2015.

  1. cars2cool
    Joined: Jul 13, 2014
    Posts: 10

    cars2cool

    Okay I've killed a lot of brain cells in my day but have I seen advertised somewhere that somebody is offering a alternator that looks like an old skool generator? Oh is my wife correct when she says "What the hell are you thinking?" My safest reply so far is "old cars".
     
  2. 57JoeFoMoPar
    Joined: Sep 14, 2004
    Posts: 4,625

    57JoeFoMoPar
    Member

    Is this seriously your first post?
     
  3. VOODOO ROD & CUSTOM
    Joined: Dec 27, 2009
    Posts: 1,230

    VOODOO ROD & CUSTOM
    Member

  4. do a search in the classifieds. They are listed there for sale.
    Pat
     

  5. Pretty pricey.

    Ben
     
  6. junkyardjeff
    Joined: Jul 23, 2005
    Posts: 7,479

    junkyardjeff
    Member

    I was wondering if the price has came down any on them.
     
  7. amadeus
    Joined: Dec 27, 2006
    Posts: 321

    amadeus
    Member

    The problem with these is that they heat up and will prematurely fail....
    And are very expensive..
     
  8. silent rick
    Joined: Nov 7, 2002
    Posts: 4,017

    silent rick
    Member

    here's a generator that looks like a generator

    [​IMG]
     
  9. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,293

    56sedandelivery
    ALLIANCE MEMBER

    There's at least one other company besides Powermaster making them, and cheaper too. I've never had much luck keeping a generator going; they all seem to throw solder with 7K powershifts. Did anyone notice the OP's avatar? Post some more pics of that! I am Butch/56sedandelivery.
     
  10. Google----genernator,also powergen.There is one made by Whitley or Whitney(not the JC catalogue).
     
  11. They're pretty much limited the same as a real generator; while they're capable of higher output, running them like that will burn them out. The only real advantage is they do have usable output at slow speeds. If your generator is adequate for the current electrical load, one would work. If your planning on adding to the load, go with a real alternator.
     
  12. I read somewhere that a 12v generator from a mid 50's ford car will work for most applications.
     
  13. 57JoeFoMoPar
    Joined: Sep 14, 2004
    Posts: 4,625

    57JoeFoMoPar
    Member

    OK, now you guys got me wondering. What makes the PowerGens more prone to failure than a "normal" alternator? Is it the (presumably) steel case vs. the aluminum case of the standard alternator? Wouldn't the same issue be caused by a chromed aluminum case alternator as well? Now I'm curious.
     
  14. Can you get an generator that looks like an alternator??
     
  15. jcmarz
    Joined: Jan 10, 2010
    Posts: 4,636

    jcmarz
    Member
    from Chino, Ca

    Agreed.
     
  16. Petejoe
    Joined: Nov 27, 2002
    Posts: 10,537

    Petejoe
    ALLIANCE MEMBER
    from Zoar, Ohio

    I use a 12 volt 50's generator and cut the mounting tabs off to mount them on a flathead mount. Same exact diameter.

    Steve, I have also used a powergen on another vehicle now for three years with no problems. Exactly what do you mean by "running them like that will burn them up" damn things are very expensive to have problems like that?
     
  17. It's lack of cooling, but it has much more to do with the design rather than materials. The long, smaller-diameter 'generator' case simply doesn't have enough room inside to allow for adequate cooling through the case at high ampere output. There's three manufacturers of these that I'm aware, all use very similar designs, but only one admits that these do have practical limits.

    Pete, these alternators are generally only rated to 75 amps maximum. That doesn't mean you can run them that hard continuously. The general rule with any power-producing electrical device is the safe continuous rating will be 80% of maximum, maybe less depending on who you buy from. If your maximum electrical load is under that amount, you'll have no issues. If you use one above that 80% number, it will overheat.
     
  18. Petejoe
    Joined: Nov 27, 2002
    Posts: 10,537

    Petejoe
    ALLIANCE MEMBER
    from Zoar, Ohio

    Ok thx I understand. I am running lights, fuel pump and two electric fans. Looks like I can consider myself lucky.
    As far as size, these are a lot bigger than say a 60's GM alternator. But I must admit those look to have more ventilation areas than the powergen.
     
  19. amadeus
    Joined: Dec 27, 2006
    Posts: 321

    amadeus
    Member

    A modern alternator is producing more output than a vintage 25-35amp generator, the more amperage produced the more heat it will generate, look at a modern alternator, they are small and capable of producing high amounts of amperage but have been equipped with "flutes" on the casing and internal fans to dissipate the heat , the alternators and generators "suck" the "cooling air' REAR to FRONT, (most rectifiers and regulators are located in the rear of the unit) Powergens try to emulate the look of a vintage generator and thus suffer from a design flaw (no cooling flutes!) which is not enough cooling & heat dissipation; The units will overheat and the electronics will fail. And this is all for the sake of having the "look" of a vintage generator.

    Look at some of the modern vehicles with high output modern generators, some of them are air cooled with ducts and some are even encased in the engine block and use coolant to keep the temps down!
     
  20. 4dFord/SC
    Joined: Sep 12, 2004
    Posts: 837

    4dFord/SC
    Member

    It's Ed Whitney (http://www.ejwhitneyco.com/automotive.html). I've had one of his generator lookalike conversions in my 6v positive ground '40 for 10 years, and have had no problems with it. He uses the end plates from your original generator, and and fabricates the rest of the case and the pulley. I've been told the alternator unit comes from a Kubota tractor, but don't know for sure.
     
  21. VOODOO ROD & CUSTOM
    Joined: Dec 27, 2009
    Posts: 1,230

    VOODOO ROD & CUSTOM
    Member

    Hey Silent Rick : If you see my Sister, tell her I said HI ! ! !

    (selfish disgusting anti-social bad influence friend of the devil seeks an intelligent young hard belly with large breasts to dance naked for my amusement, keep my bike and house clean and buy me nice things.
    must ride on fender.)

    VR&C.
     
  22. Try Rotten Lenard's stealth alternators. He offers an alliance discount as well on his items.
     
  23. nwbhotrod
    Joined: Oct 13, 2009
    Posts: 1,243

    nwbhotrod
    Member
    from wash state

    Why not just run a Generator
     
  24. Deuce Lover
    Joined: Feb 15, 2009
    Posts: 693

    Deuce Lover
    Member

    Ed Whitney in Buena Park,CA.Ask for Tom his son. Tel 714-773-1611
    He does the ones for Flatheads.Uses the front and rear end parts and machines a new housing out of aluminum and connects the small alt to the pulley..The only drawback is it only puts out 40 amps.He has done 2 for me and several for friends.I had no problems and they did the job.Used to be around $350 and you supply a core.30-60 day wait.
     
  25. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 8,178

    mgtstumpy
    Member

  26. 33Tudor
    Joined: Aug 30, 2007
    Posts: 763

    33Tudor
    Member

    I put an alternator from a forklift inside an original flathead generator case 4 years ago when I was building my 33. Now my buddy wants me to build him one for the flathead in his 34 3window. I can't seem to remember if it was on here that I saw the instructions to build it. Does anyone remember?
     

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