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Thread: Jeep 4.7L stroker, need some help.

  1. #11
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,283

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    I owned a daily driven '04 Jeep Rubicon 4.0L for 13 years. That inline coil pack (COP waste-spark ignition) was one of the best things about that engine. It performed flawlessly and never needed to be replaced.
    I'd contact Holley Tech Service (LINK) to see if this waste-spark ignition can be retained with Holley EFI.
    http://documents.holley.com/199r10525rev3.pdf (Holley EFI Waste-Spark DIS Instruction & Wiring Manual)
    I have an '04 Jeep TJ Factory Service Manual & '01 Jeep WJ Troubleshooting Manual (which contains 4.0L & 4.7L schematic wiring diagrams).
    These are very large PDF documents, and I can Dropbox them to you if you need them. (They're too large to email or post on this forum).
    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

  2. #12

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    Quote Originally Posted by Danny Cabral View Post
    I owned a daily driven '04 Jeep Rubicon 4.0L for 13 years. That inline coil pack (COP waste-spark ignition) was one of the best things about that engine. It performed flawlessly and never needed to be replaced.
    My donor engine is from a 2003 TJ, so exactly the same engine as what you had.

    Quote Originally Posted by Danny Cabral View Post
    I'd contact Holley Tech Service (LINK) to see if this waste-spark ignition can be retained with Holley EFI.
    I called tech support this morning. The gentleman said to use their four channel coil driver (part #554-112) and I would be good to go. Their driver can work with any random "dumb" coil. I just have to figure out the wiring on my own.

    Quote Originally Posted by Danny Cabral View Post
    I have an '04 Jeep TJ Factory Service Manual & '01 Jeep WJ Troubleshooting Manual (which contains 4.0L & 4.7L schematic wiring diagrams).
    These are very large PDF documents, and I can Dropbox them to you if you need them. (They're too large to email or post on this forum).
    I would greatly appreciate that. Would you happen to have a factory service manual for a '99 TJ? I have another donor engine with a distributor, and would like to have its wiring diagram as well.

  3. #13
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,283

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    Quote Originally Posted by Jeep4.7 View Post
    I would greatly appreciate that.
    https://www.dropbox.com/s/t7t37nx987...oting.pdf?dl=0 ('01 Jeep WJ Troubleshooting Manual)
    https://www.dropbox.com/s/8ybcwr8min...anual.pdf?dl=0 ('04 Jeep TJ Factory Service Manual)

    Would you happen to have a factory service manual for a '99 TJ?
    No I don't.
    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

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