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LS1 coil help

This is a discussion on LS1 coil help within the General Help forums, part of the LSx Technical Help Section category; Hello all, I am here to find out just a couple things. I am an old school supra guy and ...

  1. #1
    Junior Member
    Join Date
    Jul 2008
    atlanta, ga

    1985 Supra

    LS1 coil help

    Hello all,
    I am here to find out just a couple things. I am an old school supra guy and I am using ls1 coils with a haltech standalone on a 1985 supra. I am not incredibly versed with the setup as I bought it from someone that created the setup. I am now trying to figure out exactly what else can be done with it. Firstly, are the ls1 truck coils different than the ls1 car coils? I have searched but I am sure my lack of technical prowess didnt help me with my choice of words in the search. I was curious if upgrading from stock ls1 coils coulld be beneficial for power output? I have access to aftermarket ls1 truck coils and didnt know if it would be a lateral move or an upgrade. I am really just trying to understand the whole coils concept as the car originally had a distributor and measly 182cc injectors. now it has 550cc injectors and 6 ls1 coils so to say it is different is an understatement.

    see below for pics of the setup

    here it was in the early stages

    here it is with the current rail along firewall

    all help and advice is greatly appreciated!


  2. #2
    King 0f n00bz shady milkman's Avatar
    Join Date
    Jan 2006
    Shepherd, Michigan

    blacker than wesleysnipes
    98' trans am

    stick with the car coils.

  3. #3 Tuner
    Frost's Avatar
    Join Date
    Jul 2007
    Richmond VA
    2,415 Sponsor
    GM Tuner

    The truck coils are run by many 7 and 8 second turbo F-bodies with great success.

    If you are setup for F-body coils already, I sell these adapter harnesses:

    If you haven't yet, but need to terminate your harness, I sell the connector kits: and also have them in pigtails:

    If you just need connectors for f-body coils, I have those in kits as well:

    If there is anything that you need that you don't see listed, give us a call.

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