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HOLLEY HP ECU or Terminator Installation Time

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Old May 2, 2023 | 06:07 PM
  #1  
carlos64030's Avatar
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HOLLEY HP ECU or Terminator Installation Time

If you have a Holley HP EFI ECU, Terminator X or any other Holley EFI system in your car, how many hours did it take you or a shop to do the installation and get the car running? If you have a shop and you've done this installation a time or two, same question.
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Old May 2, 2023 | 08:54 PM
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QwkTrip's Avatar
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Re: HOLLEY HP ECU or Terminator Installation Time

1 or 2 day tune + 3 months of promises. Then up to a couple years of fussing with fine drivability depending how rowdy the engine.
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Old May 3, 2023 | 02:14 AM
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3rdgenzroc's Avatar
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Car: 86 Iroc-Z
Engine: 383 HSR
Transmission: 700R4
Axle/Gears: 3.42
Re: HOLLEY HP ECU or Terminator Installation Time

You can put it in, in a days time. BUT, if you are adding to it, or doing any custom wiring (think TCC lockup, A/C, idle air bump, etc., etc.) this will take more time (how fast can you wire and loom your mess?). Also, are you using a premade wiring harness for your car and setup like the TPI/Stealthram? Not everthing is perfectly ran on these in lengths and or the end connectors. I ran mine before the engine was totally finished, for ease of (trying) to hide some of the wiring and just plain ease of access. Once you are at the point of starting your engine though, it is a matter of mere minutes to go through Holley's check list and fire it up. Mine started on the 2nd try. QwkTrip was spot on telling you to expect to hear promises of someone besides YOU fine tuning it (if your not a versed tuner and dont have the patience to learn), OR, take alot of time learing to tune it or having to just because it is a, well, a rowdy engine. While these will get a pretty normal engine CLOSE so you can run it, it's still leaving alot on the table and not truly "self tuning", but can make someone somewhat satisfied on the driving manners if they are not expecting alot of performance return within maybe just a few hundred miles of "learning".
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Old May 4, 2023 | 03:14 PM
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midias's Avatar
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Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
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Re: HOLLEY HP ECU or Terminator Installation Time

From carb to sniper a weekend to do the conversion with intank pump. Then I spent the summer tuning. Regular driving tuned almost instantly but I had some cold idle issues as fall approached and temps dropped into the 40-50s. I had to tune the pre warm up tables. All in all I am very happy
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