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Big 3/4 wire upgrade

Discussion in '3rd Gen Tundras (2014+)' started by joeguam, Jan 31, 2017.

  1. Jan 31, 2017 at 10:15 PM
    #1
    joeguam

    joeguam [OP] New Member

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    JOE
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    2015 Toyota Tundra SR5
    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    Supply and Tools I used.
    (8 feet) Positive and (5 feet) Negative cables https://ceautoelectricsupply.com/battery-cable/

    (Red Wire) Approximately 5 feet 3 inches length for cable run from alternator to ANL Fuse block. 12” length positive battery post to voltage regulator fuse block.

    You can use the remainder of the positive wire for the ANL Fuse block to positive battery post.If you do not intend to not use a fuse block from the alternator to battery the suggested lengths of 5 feet 3 inches will work to attach to the positive battery post.

    (Black Wire) Approximately 4 feet from negative battery post to engine block grounding point. 8 inches from negative battery post to OEM grounding point.


    (4) 1/4 and (4) 5/16 Eyelets https://ceautoelectricsupply.com/product/2-1-awg-mega-eyelets/
    (1) 5/16 and (1) 3/8 https://ceautoelectricsupply.com/product/45-degree-mega-eyelets/
    (2) ¾” diameter black and red 4 inch lenght
    Heat shrink tubing https://ceautoelectricsupply.com/individual-components/heat-shrink-tubing/
    Alternator Boot https://ceautoelectricsupply.com/product/alternator-boots-4-to-0-awg/
    3M Electrical tape Black and Purple
    Screwdriver
    Wire cutter
    12 mm socket
    10 mm socket
    10 mm ratchet wrench
    12mm ratchet wrench
    Ratchet: Short and Regular
    Hammer
    Crimp tool
    Heat gun
    Dielectric grease
    Magnet

    ANL Fuse Block

    JLAUDIO%20ANL%20FUSE%20BLOCK_zpsubli4g47_5ca010998c8d65bc4a0b8124d8648fe2a05f8b8d.jpg

    Positive Battery Post
    JLAUDIO%20Connector_zpsao7qdlk1_83b6560252fb9d5bf7970435014c014f629a0fbe.jpg


    Negative Battery Post

    Negative%20Connector_zpsqaphfqhi_d3f4701524f75a1480f3eeb2a830092e0354d910.jpg

    Attached is the diagram for reference lengths
     

    Attached Files:

    Last edited: Jan 31, 2017
    GeneVS, tinman10101, GAknight and 3 others like this.
  2. Jan 31, 2017 at 10:35 PM
    #2
    joeguam

    joeguam [OP] New Member

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    231
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    Male
    First Name:
    JOE
    Vehicle:
    2015 Toyota Tundra SR5
    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    NorthStar 27F Battery

    NSB-AGM27F-2T_zpsv77bizqd_cb8a77c2bcd6359d17b13c715609742891300557.jpg





    How to remove (5) cable harness clips

    Push down on the tab,

    IMG_2946_zps7dtif2vp_616a4a49a489865c0bdc418839f0b50a6e9ec3c2.jpg

    To remove clip from mounting points is to lift on the tabs

    IMG_2948_zpspxh5ykvg_9fce0edf28950b9bb15e234d2c6f88c8668474f0.jpg

    Couple items to remove to aid in the big 3/4 upgrade

    Remove the 12mm bolt (beige) for the hose mount (I used a ratchet wrench as the space is tight). You have to remove the oil housing bracket which is also the same point where the battery negative is grounded. The bolt is a 10mm bolt on the oil filter housing that hold the bracket (yellow). Easiest way to get to the oil housing bolts is through the drivers side tie rod area using two 12” extensions. The magnet I mentioned is used to retrieve and place the bolt back on the stud when installing it back in. Trust me you will thank yourself later if you use the magnet.

    Brown-10mm bolt

    12MM%20BOLT%20FOR%20COLLER%20HOSE_zpseqi_aae0129bfd0d66cb1801cb6323f067082766121b.jpg
    GROUND%20BOLT%20PATH_zpsvuiydrjk_966ac83b6e17b6a1edf3247d66e88afb9047a761.jpg

    Nut on the oil filter housing (removing and installing) Brown is the 10mm nut, Bracket-Yellow, Main harness-Red, Harness clip-Teal.

    OIL%20FILTER%20HOUSING%20BRACKET%20BOLT__83065efba7bccd824b9bd603b345d06f02ab2cc6.jpg

    Next is to access the alternator wires. Remove the panel clips (4 light green) to access the alternator. Unbolt the alternator power as the new positive wire is being ran straight to battery positive post via the ANL fuse block (original wire ran directly to Fuse voltage regulator). The space is limited so I used the short ratchet as it was the easiest way to remove the 10mm nut.

    ALTERNATOR%20ACCESS%20POINT_zpsj35njswl_c320512154399b5aa5d9a11d164df7276604f7cd.jpg
    IMG_2934_zpswkqmt4wr_032655038ec4180905ce9b5710d23855135452a0.jpg
    IMG_2935_zpsuoxqcfpk_c4a9b262c38e34b0e1e9db23bd8ef91e1ec7e8c1.jpg

    You will have to remove the Alternator, Starter, and Oil pressure sending connector from Fuse box.

    ALTERNATOROIL%20AND%20STARTER%20CONNECTO_8656db566353e12dd7d133f137e266710c290c93.jpg
     
    GeneVS and Randy Morton like this.
  3. Jan 31, 2017 at 10:36 PM
    #3
    joeguam

    joeguam [OP] New Member

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    2015 Toyota Tundra SR5
    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    As you see this is the after installation pictures of the alternator connector (left OEM) and new eyelet, power wire and alternator boot. I put dielectric grease interior of the rubber boots on both.

    aLTERNATOR%20WIRING_zpsch1v5dyc_1d22372c72a5f5a66c88cba8eaf530af986717fe.jpg


    After all the brackets bolts, nuts and wire harness are removed I pull all the wires to the front/underneath the truck to remove the OEM power cables from the alternator to the fuse box. I wanted a clean OEM look, since the OEM alternator terminal is too thick to add another terminal on top of it. The OEM had to get removed. You can cut the OEM terminal and add another thin terminal but I rather not mess with the OEM cables. Yes I did it the hard but correct way. Wire identification. Red-Alternator to + battery Post, Small Magenta-Starter connector wire that is going to be part of the main connector harness, Big Magenta- Starter that connect to + battery post, Blue-Oil pressure sender connector, Green is the cables going to alternator.

    WIRE%20HARNESS%20BREAKDOWN_Ink_LI_zpsxjx_0f2d46638a37ba9ba9d837c38f7307e2ac3e1b71.jpg

    Wire Identification areas Voltage regulator- small and medium Red, Main harness(Alternator, Starter, and connector harness), Alternator, Starter, Oil connector harness securing point-Purple)

    BATTERY%20FUSE%20MAIN%20HARNESS_zpss1csd_4b850072615ef84b00d74bbf39095b7f099f5033.jpg

    Wrapped up and ready to run to battery and fuse panel. Place all the Harness Clips back into it specific places. The only odd color clip is gray which is for the ground wire from the engine block to battery negative post.

    IMG_2885_Ink_Ink_LI_zpsuf2w1z6o_31a973f13c2489e38db93e047d90ab6b575d6f5e.jpg

    Harness clips-Teal, Alternate positive and connector wires-Red. Starter positive and connector wire-Megenta, All wires in loom- Orange, Oil pressure sender connector-Blue.

    FRONT%20OF%20ENGINE_zpsantymbxd_d95788ec866b85cac7b4b3e4e1c96b95c6c1bf54.jpg

    Run the Main harness to back of Oil Filter Housing –Orange. At this point do not install the bracket-Yellow and 10mm bolt-Brown until you run the harness up the to the next harness clip then to fuse box and to battery. Confirm the lengths are adequate before you install the bracket(1st) , Ground Wire, and then bolt.

    GROUND%20BOLT%20PATH%20WITH%20EXTENSION__7f553394c882dbde8921f0699b31e204e30d34b8.jpg
    OIL%20FILTER%20HOUSING%20BRACKET%20BOLT__83065efba7bccd824b9bd603b345d06f02ab2cc6.jpg


    After the run here is the next harness point (screw driver area)

    IMG_2928_zpsx48awg2k_dea3844008942f69e937e297d6d0f3f9ba236372.jpg
     
    Last edited: Feb 1, 2017
  4. Jan 31, 2017 at 10:39 PM
    #4
    joeguam

    joeguam [OP] New Member

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    2015 Toyota Tundra SR5
    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    Now that you have the Main Harness-Orange ran up to the Fuse and Battery the next step is to mount the Ground-Black. The eyelet I used was the 45 degree to keep the wire from resting on the engine block. Harness Clip-Teal on back of the Oil Filter Housing. Route the Ground wire up towards the battery negative post via the harness clip. Now install the Oil Filter Bracket- Yellow ground wire and (2) 10 mm nut (engine block and oil filter housing). Do not forget the 12mm nut on the hose bracket at the front of engine.

    CYLINDER%20BLOCK%20GROUND_Ink_LI_zpsk7oc_6a0c7abfcaaf07487c8d317cdaefff01cd7db814.jpg


    Now I secured/installed all cables. Voltage regulator in the fuse box-small and medium Red, Alternator- Large red (ran to ANL fuse then into battery. Under the black boot (blue cable) is the cable power for the Audio System cable, Fuse Voltage Regulator cable (OEM), and the Starter positive cable.
    Grounds: Negative post to Engine bay panel-Small Black. Engine Block to Negative post-Large Black.
    Connector Wires-Purple from the Alternator, Oil pressure sender, and starter connector.

    POSITIVE%20CABLES_zpszdjtfrzu_dc479ce26acc6335c109cc7fc3bf400bb1bc59f9.jpg

    ANL%20FUSE%20LAYOUT_zpselzhipmm_1238a6836f5309458ddfca22bd9410f473ecadb8.jpg


    There is another ground point on the passenger engine bay near the air filter-green to complete the BIG 4.

    BIG%204_zpsjnqetfvd_64b4be580e69c43f29acbfe1e537e76ba14adc81.jpg

    Lastly, tape the cable identification label and add zip ties to secure the ground and main harness together. Reinstall the clips on the passenger gap guard after multimeter OHMS test is complete.

    MANUFACTOR%20LABEL_zpsu1lxn388_e2e76afd862b68a9886d4a20d4fd1567b7dc4166.jpg.


    I hope this helps someone wanting to do the big 3/4 upgrade.
     
    Last edited: Feb 1, 2017
  5. Feb 1, 2017 at 5:50 AM
    #5
    dcsleeper408

    dcsleeper408 BASTRDS

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    Really nice and clean setup!
    How does the 27f fit with the oem mounting bracket?
     
    Mountun Goat likes this.
  6. Feb 1, 2017 at 6:25 AM
    #6
    Black Wolf

    Black Wolf 3 Digit SSEM # 0.378K

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    RC steps, Zone UCA's, Fat Bob Vated coilovers, Pro Form Fab shackles, Patagonia M/T's, Ranch Hand Grill Guard, ToyTec diff breather kit, SDHQ AIP relocation kit, Extang Trifecta 2.0, Jomax ABS speed sensor armor
    Well done. Very well done. Now can you do my truck.........................
     
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  7. Feb 1, 2017 at 6:36 AM
    #7
    joeguam

    joeguam [OP] New Member

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    2015 Toyota Tundra SR5
    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    Took a lot of patience as there is not much wiggle room length in regards to the wrapping of all the wires in the loom. I taped, removed and adjust the lengths of the connector wires 3 times. That's why I posted a PDF diagram to reference the lengths so others do not struggle. The 27F fits the tray and bracket.
     
    Mountun Goat likes this.
  8. Feb 1, 2017 at 6:47 AM
    #8
    csuviper

    csuviper Moderator Staff Member

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    Some Mods :) See build thread for details
    Good writeup
     
  9. Feb 1, 2017 at 6:55 AM
    #9
    040Tundra

    040Tundra Teddy 2013-2019

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    A little of this and a little of that.
    Great write up! Nice visuals and clean pictures. Good job Joe!!!!
     
  10. Feb 1, 2017 at 9:09 PM
    #10
    joeguam

    joeguam [OP] New Member

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    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    Thanks, I joined this forum to learn and also contribute.
    One additional lesson to pass on, do not be overly aggressive moving the battery because the headlight light adjustment housing is very close. I bumped the housing hard enough that I had to remove the headlight to JB weld the stationary tab.
     
    Mountun Goat likes this.
  11. Feb 19, 2017 at 8:17 AM
    #11
    T-Rex266

    T-Rex266 .org? Never heard of her. Staff Member

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    Added to DIY
     
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  12. Feb 25, 2017 at 1:54 PM
    #12
    Quartermeter

    Quartermeter New Member

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    FOX 2.0 REARS, OME FRONTS FIRESTONE AIR BAGS RCI SKID PLATE
    I scanned thru this but i guess i missed it. What did you just do and why did you do it?

    Thanks Tony. Dont know if your serious or laughing. But im good either way. There is some info missing here.
     
    Last edited: Feb 25, 2017
    Tony31 likes this.
  13. Feb 25, 2017 at 5:47 PM
    #13
    joeguam

    joeguam [OP] New Member

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    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    Mountun Goat likes this.
  14. Feb 25, 2017 at 6:26 PM
    #14
    Quartermeter

    Quartermeter New Member

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    FOX 2.0 REARS, OME FRONTS FIRESTONE AIR BAGS RCI SKID PLATE
    Wouldnt it be easier and cheaper to install a high output alternator??
     
  15. Feb 25, 2017 at 8:35 PM
    #15
    joeguam

    joeguam [OP] New Member

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    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    Easier maybe: It requires removal of parts and fiddling just to remove the alternator. The power wire (size) gauge that I had installed is bigger than the OEM. Cheaper No
     
  16. Feb 26, 2017 at 5:38 AM
    #16
    Quartermeter

    Quartermeter New Member

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    How many wires are you replacing?
     
  17. Feb 26, 2017 at 5:40 AM
    #17
    Quartermeter

    Quartermeter New Member

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    TOYOTA MOTORS is who you need to sell this idea to.
     
  18. Feb 26, 2017 at 8:14 AM
    #18
    joeguam

    joeguam [OP] New Member

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    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    4, it is routed from the alternator directly to Battery now. OEM setup was from the alternator to the fuse box then to the battery.
     
  19. Feb 26, 2017 at 8:32 AM
    #19
    joeguam

    joeguam [OP] New Member

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    OEM wiring was set to match the stock electrical system.
    I have modified it to maximize the alternator and battery performance/ efficiency. In the mean time the OEM alternator works for the amp draw demands of my current upgrades.
     
  20. Jun 8, 2018 at 6:49 AM
    #20
    eddiesteele

    eddiesteele New Member

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    Sorry to ressurect an old thread, but wanted to say thanks for the awesome write up! How long did this take? Just wondering how much time to set aside to get this done. Also are these lengths and this write up still similar for a 2018 CM? THANKS AGAIN!
     
  21. Dec 17, 2018 at 12:23 PM
    #21
    TundraDude772

    TundraDude772 Shake N’ Bake, Ricky Bobby

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    Great information here with lots of detail. Thinking about doing this with some 2 gauge OFC wire I have left over.

    But I can’t seem to find a answer anywhere; does anyone know the stock wire gauge that is used from alternator>fuse box? It looks like 4 gauge, so making the jump to 2 gauge doesn’t seem justifiable. Anyone? Thanks!
     
  22. Dec 20, 2018 at 4:35 PM
    #22
    rodm1

    rodm1 New Member

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    I'm thinking of doing this at the time of battery replacement. Thanks for the right up OP.
     
  23. Jan 18, 2019 at 9:37 AM
    #23
    LEKS

    LEKS Truck name “Sancha”

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    So you ran a new 0 gauge from alternator straight to the battery, then battery to the fuse box? Oem is ran from the alternator to the fuse box correct?
     
  24. Jan 19, 2019 at 2:37 AM
    #24
    joeguam

    joeguam [OP] New Member

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    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    Correct
     
  25. Apr 7, 2019 at 4:05 PM
    #25
    smslavin

    smslavin On a plane...

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    Denver, CO
    Vehicle:
    2016 Tundra CrewMax SR5
    i know this is an old thread but it's the only here that describes this. been trying to wrap my head around it all afternoon. the ground in your picture above is not part of the wiring diagram you drew. correct? do you remember how long this passenger side ground is?

    i'm looking at doing this with 1/0 wire so i can eventually throw in a 250amp alternator. i also need longer cables than the factory ones to make my dual battery setup viable.
     
  26. Apr 7, 2019 at 4:22 PM
    #26
    LEKS

    LEKS Truck name “Sancha”

    Joined:
    Feb 26, 2018
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    Makaha
    Vehicle:
    2013 Rockwarrior Supercharged
    That passenger side one is short maybe 12-14”. This is it next to the upgraded one I made. 55D97608-3BC4-4D78-AA23-B0A30F471C47.jpg
     
  27. Apr 7, 2019 at 4:24 PM
    #27
    LEKS

    LEKS Truck name “Sancha”

    Joined:
    Feb 26, 2018
    Member:
    #13179
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    155
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    Male
    Makaha
    Vehicle:
    2013 Rockwarrior Supercharged
    Here it is installed
    84CB58DA-9C24-4444-B7F1-652781D4D977.jpg
     
    GeneVS, jstrahn, Flyinryank and 2 others like this.
  28. Apr 7, 2019 at 4:24 PM
    #28
    smslavin

    smslavin On a plane...

    Joined:
    Jul 15, 2017
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    Sean
    Denver, CO
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    2016 Tundra CrewMax SR5
    rad. thank you. you made the new one very clean. :thumbsup: hoping mine will be the same.
     
    LEKS likes this.
  29. Apr 24, 2019 at 12:46 PM
    #29
    smslavin

    smslavin On a plane...

    Joined:
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    Sean
    Denver, CO
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    2016 Tundra CrewMax SR5
    ack. i've missed something. the wire that was connected at the small red dot on the fuse box, where does it go? thought i was being careful and remembering where everything went but...
     
  30. Apr 24, 2019 at 1:25 PM
    #30
    joeguam

    joeguam [OP] New Member

    Joined:
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    Messages:
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    First Name:
    JOE
    Vehicle:
    2015 Toyota Tundra SR5
    Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and Remote Start, Pioneer 4200, JLAudio Amps, JL Audio Subs. Nitro Gear 5.29 and Auburn LSD
    After the upgrade the wire (small red dot) receives power directly from battery.

    Originally. The (small dot) wire was Hook directly to/from the alternator.
     
    GeneVS and smslavin like this.

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