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Thread: Wire specs

  1. #1
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    Wire specs

    I basically have know practical knowledge on wire types. Does anyone have any good reference material on wire used in the RF wiring harness? I have an older revision harness and need to add to what I have (for the hazard switch for example). I'm concerned I'll oversimplify what I need, but hopefully I'm overcomplicating it.

  2. #2
    Senior Member phileas_fogg's Avatar
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    I use this chart http://www.allfordmustangs.com/forum...ingdiagram.jpg to determine what gauge wire to use. It's VERY conservative; other charts allow for smaller gauge wire or longer runs.

    Figure out how long a run you need & the current to be supported, and choose your wire gauge accordingly. For your hazards, you'll be fine with 16 gauge unless you're doing something exotic.

    If you want to know specifically what RF used, give them a call. Their tech support has always been very knowledgeable when I had a question.


    John
    MK IV Roadster #8631
    Ford 302, Holley Terminator EFI, T5z, 3.55 Rear End, IRS, 17” Halibrand Replicas (9” front, 10.5” rear), Nitto 555 G2’s (275/40ZR17 front, 315/35ZR17 rear), Fast Freddie’s Power Steering, F5 Wilwood Brakes, FFMetal’s Firewall Forward, Forte’s Hydraulic Clutch & Throttle Linkage
    https://www.ffcars.com/threads/phile.../#post-4776313

  3. #3
    Senior Member Big Blocker's Avatar
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    Pretty good idea to use GXL or SXL wire rated for automotive applications in whatever gauge you need to power your device.

    Buy your wire at automotive shops, NOT HD or Lowes, they don't [usually] carry anything but THHN THN or TW (house wire) not rated for 125°C.

    Doc
    Last edited by Big Blocker; 04-05-2019 at 11:16 PM.
    FFR3712K (MKII) in Lost Wages Nevada.
    5.0 w/tubular GT-40 EFI, E303 cam, Custom 4 into 4 headers, T5, 3-Link 3.73 rear. Full F5 tubular suspension. Drop Butt mod, Dash forward mod, custom foot box air vents, custom turn signal system. 13" PBR brakes, Fiero E-Brake mod, Flaming River 18:1 rack w/ F5 bump steer kit on Breeze bushings. 17" Chrome Cobra "R's" w/ 275 fronts and 315 rears. MKIV seats. FORD Royal Blue w/ Arctic White stripes.

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  5. #4
    Senior Member CFranks's Avatar
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    Wirebarn is a great source for GXL and TXL wire, they come in multi-color packs too:

    https://www.wirebarn.com/Automotive-...packs_c_1.html

  6. #5
    Senior Member CDXXVII's Avatar
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    Great resource and quality wire


    Quote Originally Posted by CFranks View Post
    Wirebarn is a great source for GXL and TXL wire, they come in multi-color packs too:

    https://www.wirebarn.com/Automotive-...packs_c_1.html
    F5R #7841: Anniversary Edition MK4, Ford Racing 427, Edelbrock EFI, Gas-N Pipes, Stainless Headers, TKO600, 3.31 Moser 3-Link, 17" Halibrands

  7. #6
    Senior Member SSNK4US's Avatar
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    GXL? TXL? SXL? Confused? Here’s a quick read....

    https://www.kayjayco.com/catPWireSelect.htm

    Kurt
    If everything seems under control, you’re just not going fast enough....

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    MKIV complete kit # 9395 delivered 7/31/18

  8. #7
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    I don't have any experience with a RF harness, but I do know that Painless uses TXL.

    I have also had good experience with Wire Barn. There are wire calculators on their web site.
    MK2 #3319.... On the road since 2002 with a lot of upgrades

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