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Technical Rajah Ends for Supression Core/Spiral Core wires?

Discussion in 'Traditional Hot Rods' started by FiveNdime, Dec 26, 2023.

  1. FiveNdime
    Joined: Aug 29, 2021
    Posts: 149

    FiveNdime
    Member

    I am having some trouble finding these and am wondering if they even make them. Would anyone know where I can find them that are NOT designed for Solid copper core wires? Specifically looking for the 90 degree ones. I can find a more modern set, but would like the bakelite style ends or the screw on ones that are all metal.
     
  2. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 6,105

    THE FRENCHTOWN FLYER
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    from FRENCHTOWN

    Last edited: Dec 26, 2023
  3. Look at The Brillman Company. If you don’t find it on their website, call tomorrow and ask for Mr. Brillman. He is a walking, talking encyclopedia of transportation electrical systems. Their paper catalog is one of those where, I’d like to have 5 of each item.
     
  4. MCjim
    Joined: Jun 4, 2006
    Posts: 1,380

    MCjim
    Member
    from soCal

    I run spiral core wires with them, no problem
    https://www.jalopyjournal.com/forum/threads/installing-rajah-terminals.1073048/
    hell,they are even on Amazon
     
  5. saltracer219
    Joined: Sep 23, 2006
    Posts: 1,176

    saltracer219
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    427 sleeper and Tow Truck Tom like this.
  6. pprather
    Joined: Jan 10, 2007
    Posts: 9,003

    pprather
    Member

    Will spark jump from Rajah clip to headers?
     
    427 sleeper likes this.
  7. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 16,114

    Bandit Billy
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    Brillman. I run em on my flathead with silicon core wires. No issues.
     
  8. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 3,369

    427 sleeper
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    YES!!! :eek::D:rolleyes::oops:
     
    bschwoeble likes this.
  9. lostn51
    Joined: Jan 24, 2008
    Posts: 3,402

    lostn51
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    from Tennessee

    Years ago after my mom and dad got married before I was hatched, pop needed to see if the lawnmower had spark so he asked mom to hold the wire and pulled the cord:rolleyes: ……….it did:p.

    Years later I found out when I was helping dad with the flathead and put my hand near one of the plug wires that it would light you up like nobody’s business :D
     
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  10. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 6,105

    THE FRENCHTOWN FLYER
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    from FRENCHTOWN

    AIR is a good insulator, but not a PERFECT insulator, so it becomes necessary to shield the terminal end with a better insulator, like rubber or silicone based coverings. But sometimes when there are clearance issues from the terminal to the header, like the middle pipes in a SBC, it is better to use a Raja clip and have an air gap than to use a covered insulator touching the header pipe where it will eventually bake, carbonize, break down, and make an electrical leak path to ground.

    My phony "replica" Duesey engine with Raja clips and orange wiring:

    Hood 11.JPG
     
  11. alanp561
    Joined: Oct 1, 2017
    Posts: 5,586

    alanp561
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    So, in essence, you're saying you're more like your mother than your father ;)?
     
  12. FiveNdime
    Joined: Aug 29, 2021
    Posts: 149

    FiveNdime
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    I did google search, that and searched here for specific ones, and zero came up. The Brillman Co didn't have any. I found many types of Rajah ends on many speed sites, and old tractor sites, but they specifically state on some sites that these can't be used. Can it be done, I guess, but I'm not willing to take a chance unless I know for a fact this isn't going to mess the distributor up. Are any of you running them with the Unilite, Stromberg Efire or the like distributor?
     
  13. noboD
    Joined: Jan 29, 2004
    Posts: 8,994

    noboD
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    How could it possibly hurt the distributor?
     
    427 sleeper likes this.
  14. pprather
    Joined: Jan 10, 2007
    Posts: 9,003

    pprather
    Member

    I would not use the uninsulated Rajahs with an electronic ignition module.
    There must be a reason the module makers don't want you to use solid core wires.
     
  15. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 6,105

    THE FRENCHTOWN FLYER
    Member
    from FRENCHTOWN

    Higher voltages induce RFI on to other electronic devices.
    Likewise, a magneto on the street (or electronics-controlled bracket racers) should be run with resistor wires.
     
  16. FiveNdime
    Joined: Aug 29, 2021
    Posts: 149

    FiveNdime
    Member

    I will bag this idea, I wanted the look but will stick with rubber boots. Not worth the risk of burning up the distributor electronics.
     
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  17. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 16,114

    Bandit Billy
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    What part of SW Washington do you hail from?
    These are Rajal ends on 7MM carbon suppressor, cloth covered, wires. I am running a MSD distributor with a BTM-6 timing box. They clearly warn against solid core wires. It has been on the road for over 4 years. I am not sure what you are scared of?
    upload_2023-12-27_10-51-28.jpeg
    I stripped the wire back about an inch, folded it over the cloth wire and crimped on the ends just like any other spark plug terminal. I did have one misfire that I tracked down to the number 1 plug not firing. I removed the Rajal end to find the carbon core wire had disintegrated about 1/2" up the wire. I had enough slack to pull the wire out of the SS wire separators, strip it and install another end. I now carry a few replacements in my "go bag" in case it happens away from home.
    upload_2023-12-27_10-52-28.png
     
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  18. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,750

    theHIGHLANDER
    Member

    The RFI disruption is the flux field around the wires when it's running. It isn't at the plug/s. I'm going to ***ume you're not running some NASA developed 11,000HP ign box, maybe at best a module in the actual distributor. No offense intended here, but what of the open sparks around the inside as that rotor is twirling around? No suppression there, at best maybe a thin plastic cover. You gotta do you but Rajah style tips at the plug are not going to cause grief. They're directly connected to the plug, no space or ability for RFI leaks. Direct metal plug connection. I'm an overthink type myself but this is a non-starter. Are you really concerned about RFI? Put a small capacitor on the ign feed wire. Most audio suppliers have em, some cheap, some expensive, but even the pricey ones equal cheap insurance. Good luck...
     
  19. FiveNdime
    Joined: Aug 29, 2021
    Posts: 149

    FiveNdime
    Member

    What part of SW Washington do you hail from?
    These are Rajal ends on 7MM carbon suppressor, cloth covered, wires. I am running a MSD distributor with a BTM-6 timing box. They clearly warn against solid core wires. It has been on the road for over 4 years. I am not sure what you are scared of?

    I'm just north of Vancouver, nice setup by the way. It's pretty close to what I am running though different companies for components. I called Mallory (Holley) and talked to their tech. He specifically said no do not run them. He said they will work but over time could damage the module in the distributor. I have also heard that the degrading of the core can happen like you have experienced. I will continue my research and questioning, but for now I won't risk a failure for just an aesthetic look.
     
  20. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 16,114

    Bandit Billy
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    I'm in Battle Ground, have to say hi someday.
     
  21. MCjim
    Joined: Jun 4, 2006
    Posts: 1,380

    MCjim
    Member
    from soCal

    I agree, how can the cap on the spark plug cause any difference or interference? Tech is probably just trying to sell him a set of their premium wires...
     
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  22. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 6,062

    2OLD2FAST
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    from illinois

    Spark takes the path of least resistance to ground ....
     
  23. RICH B
    Joined: Feb 7, 2007
    Posts: 5,997

    RICH B
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    The metal ends inside the plug boots of a regular set of wires are probably the equivalent to the metal in Rajah ends; you just can't see it. As long as you make a good connection to the core it shouldn't be any different.
     
  24. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,750

    theHIGHLANDER
    Member

    I can tell ya this, when you bend sideways to see the right side of a Harley while your sitting on it, running, the spark will jump from a Rajah end through your Levi's if you get too close...:eek:
     
  25. Mr48chev
    Joined: Dec 28, 2007
    Posts: 36,038

    Mr48chev
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    Oh he will find that out when he gets his fingers too close to a plug when the engine is running especially if he has a hot coil.
    I used to know a guy who would kill the engine on his Model A by putting the heels of his hands on the head and his fingers on the Rajah ends on the plug wires about 40 years ago.
     
    alanp561 and theHIGHLANDER like this.
  26. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,750

    theHIGHLANDER
    Member

    I remember him, Sparky Jameson...:)
     
  27. lostn51
    Joined: Jan 24, 2008
    Posts: 3,402

    lostn51
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    from Tennessee

    Hard to say……But my dad loved to see little kids fall and s****e their knees :D
     
    alanp561 likes this.

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