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Thread: Simple question that troubles me on wiring to battery.

  1. #1

    Question Simple question that troubles me on wiring to battery.

    I've looked & searched for an answer to this question. If I have my battery in the trunk, I'll need to splice wire onto the + & - terminals from the short wire coming from the Sniper EFI. Will the added length of wire have any effect on the stability or accuracy to the Sniper EFI? Also, I have a cutout switch on the battery, which breaks ground when not in use. Is this a problem in anyway? I read where someone felt that the EFI would become a ground for all electrical components when the switch was off, and it would drain the battery. What say you? Finally, I have a charger & trickle charge hooked up to the battery when not being used. Will this effect the EFI as it cycles and maintains the battery charge? One last question. What gauge wire would you use going from the short battery lines to the battery (6-8' maybe), and what type of splice would you use? Thanks in advance for your inputs.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,253

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    Quote Originally Posted by Space Duster 383 View Post
    Will the added length of wire have any effect on the stability or accuracy to the Sniper EFI?
    No.

    Also, I have a cutout switch on the battery, which breaks ground when not in use. Is this a problem in anyway?
    The battery disconnect should always be on the positive cable, not the negative cable.

    Finally, I have a charger & trickle charge hooked up to the battery when not being used. Will this effect the EFI as it cycles and maintains the battery charge?
    No.

    One last question. What gauge wire would you use going from the short battery lines to the battery (6-8' maybe), and what type of splice would you use?
    Use 8-10 AWG, depending on how long the main power wires are lengthened.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  3. #3
    Join Date
    Oct 2017
    Location
    Los Angeles
    Posts
    230

    Default

    I used 8 gauge wire to my trunk and a butt splice connector like this:
    10-12 gauge to 8 gauge Step Down Butt Electrical Connector.

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