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    1. #1
      Join Date
      Sep 2010
      Location
      Orange County, CA
      Posts
      632

      Holley Terminator X

      Hi, Im looking for some reviews on the Holley Terminator X or Terminator X Max. Link for the kits here https://www.holley.com/products/fuel.../terminator_x/ . Seems to be a good compromise between cost and features. Id be using it on a LS3 crate engine with manual trans. Thanks.



    2. #2
      Join Date
      Feb 2013
      Posts
      1,335
      Country Flag: United States
      It may be a little bit before you see some reviews popping up with the parts just dropping yesterday. I'm excited to see some feedback myself though.


      Ridetech Suspsension
      Tech Specialist
      Phone: 812.481.4734

      Project Fox
      1979 Trans Am

    3. #3
      Join Date
      Sep 2005
      Location
      San Diego, CA
      Posts
      707
      Country Flag: United States
      Very likely the route I will be going. I like that it's plug and play, but has the ability to expand.
      John Brown
      1971 Nova - Project Car
      1990 Silverado - Ridetech StreetGRIP
      Instagram @wilwaxu
      Facebook @wilwaxu

    4. #4
      Join Date
      May 2011
      Location
      Chippewa Falls, WI
      Posts
      290
      Country Flag: United States
      Based on the user manual, this is a glorified holley sniper system for ls motors. Think of it as holley's answer to the fitech ultimate LS kit they have had out for a while. It will cater to the amateur/mildly technical customer, but not any replacement or better version of their hp and dominator series. It definitely has its place and will sell good as long as there are not major quality control issues.
      Justin N.

      1966 Chevelle
      1992 GMC Typhoon
      1989 Jeep Wrangler CJ 6.0 Twin Turbo
      1981 Jeep CJ7

    5. #5
      Join Date
      Apr 2001
      Location
      The City of Fountains
      Posts
      15,948
      Country Flag: United States
      Quote Originally Posted by Typhoon1015 View Post
      Based on the user manual, this is a glorified holley sniper system for ls motors. Think of it as holley's answer to the fitech ultimate LS kit they have had out for a while. It will cater to the amateur/mildly technical customer, but not any replacement or better version of their hp and dominator series. It definitely has its place and will sell good as long as there are not major quality control issues.
      The positioning of the new X system is clearly aimed at the LS swap market. You get some of the features of the HP and Dominator, but not all. I just read through the whole manual, and as far as I can tell, this will serve 99% of LS swaps. The Dominator has many advanced features, but unless you are building a turbo pro-mod car, they are not needed.

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    6. #6
      Join Date
      Sep 2010
      Location
      Orange County, CA
      Posts
      632
      Thanks guys. So really, this sounds pretty good for a basic LS swap, even if it has a single power adder. The PWM fan is nice too. It sounds like it’ll do everything I need, plus some. Now the real question is how about reliability? I realize this product is new so it hasn’t been tested much yet in the real world. I’ve been leaning towards the GMPP stuff for reliability and ease of replacement should the need arise. But the Holley looks very interesting, and especially now that is comparable in price to all of the other LS swap harnesses out there.

    7. #7
      Join Date
      Apr 2001
      Location
      The City of Fountains
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      Quote Originally Posted by 65 drop top View Post
      Thanks guys. So really, this sounds pretty good for a basic LS swap, even if it has a single power adder. The PWM fan is nice too. It sounds like it’ll do everything I need, plus some. Now the real question is how about reliability? I realize this product is new so it hasn’t been tested much yet in the real world. I’ve been leaning towards the GMPP stuff for reliability and ease of replacement should the need arise. But the Holley looks very interesting, and especially now that is comparable in price to all of the other LS swap harnesses out there.
      The system isn't even on sale yet, as far as I can see. But Holley has had a really good track record in the last few years. I tried to download the software for the X but it does not seem to be available on their website yet.

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    8. #8
      Join Date
      Sep 2010
      Location
      Orange County, CA
      Posts
      632
      Quote Originally Posted by andrewb70 View Post
      The system isn't even on sale yet, as far as I can see. But Holley has had a really good track record in the last few years. I tried to download the software for the X but it does not seem to be available on their website yet.

      Andrew
      According to Holley it’s in stock and ready to ship, at least the DBW w/o trans control, https://www.holley.com/products/ls_p.../parts/550-931 . But I don’t need it just yet, I’m doing a frame off resto/rotisserie and am still collecting parts and doing sheet metal work. Unfortunately my project is taking way longer than I’d hoped for, this little thing called work keeps taking up all my car time

    9. #9
      Join Date
      Apr 2001
      Location
      The City of Fountains
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      Country Flag: United States
      It is possible that support is lagging behind with posting the software to their website. If you are in no rush, sit back and wait for first hand experience to filter down. I am eventually going to install an auto trans in my GTO and the X is now at the top of the list.

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    10. #10
      Join Date
      Apr 2008
      Posts
      14
      I watched two videos on this and was online when they did the initial release.. This is a great little all in one system.. It's covers 99% of the people doing conversions (as already mentioned). It has boost control, nitrous control, 4 inputs (no more no less.. if you want more inputs must go to Dominator series).

      They are releasing more part numbers soon for hybrid builders like myself with custom applications (poor mans ls3, bored 6.0, ls3 heads, 24x, and ev6 injectors). You can also buy the X version with trans and DBW control and not use in case you want to upgrade later. They are offering $100 off right now also and can be bought directly from holley. Summit/jegs do not have them listed yet.

      It was mentioned that the software may be available this weekend or next week.

    11. #11
      Join Date
      Apr 2001
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      Software was released today

      https://www.holley.com/support/resou...Fuel_Injection

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    12. #12
      Join Date
      Apr 2001
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      The City of Fountains
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      So yesterday I had a chance to look through the X software in some detail. The general interface is exactly the same as the regular Holley software. As Doug noted, there are pro-downs for Ford and Dodge, which means Terminator X systems will be available for Coyote and Hemi swaps.

      I will try to address some questions that were raised in this thread, in no particular order.

      There is a speedometer out, but just as the Dominator it is tied in with the Transmission ICF. So this feature will only be available on the Terminator Max. The speedo output is configured the same way as Dominator and there is a place to input tire diameter and gear ratio and the PPM output value is user defined.

      There is no dedicated speed input per say, but again, when used with an auto trans the ECU will get a speed signal from the stock 4L60/70/80 VSS. If using a manual transmission, speed input gets more tricky. A dedicated vehicle speed input needs to be created, but it can only be configured with a Hall effect (3 wire) speed sensor. This is the same as the HP, while the Dominator can accommodate a 2 wire (VR type) speed sensor.

      Inputs can be configured as any type (+, -, thermistor, etc), however outputs are limited to either ground or PWM-. The two fan outputs do use two of the 4 available outputs. This can be mitigated by doing PWM fan control which would only use 1 output (but allow dual fans at variable speed).

      Injector end angle can be set with a table, same as Dom and HP. There are individual cylinder trims for fuel and spark. DBW has the same tuning as on the Dominator. There is a long list of pre-programmed injector choices and also the ability to program custom parameters. So most injectors can be used as long as they are high impedance.

      Those are the basics, but if anyone has specific questions, I'd be happy to dig deeper.

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    13. #13
      Join Date
      Aug 2004
      Location
      Jacksonville, FL
      Posts
      1,616
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      Andrew does the Holley system (whichever one), have a check engine light like the factory stuff does? Are they easy to trouble shoot malfunctions with? I talked to one of their reps on the phone a couple of days ago and he told me there is a series of LEDs on the PCM or something like that.
      Chris
      1968 Chevy Camaro SS
      LS3/T56 DSE suspension


    14. #14
      Join Date
      Apr 2001
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      The City of Fountains
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      Quote Originally Posted by 130fe View Post
      Andrew does the Holley system (whichever one), have a check engine light like the factory stuff does? Are they easy to trouble shoot malfunctions with? I talked to one of their reps on the phone a couple of days ago and he told me there is a series of LEDs on the PCM or something like that.
      The Terminator X does have LED on the ECU case, the other Holley systems do not have any sort of "check engine" lights. Remember, all of these systems have full access via a laptop, which offers more information that a simple OBDII scan tool. You can also datalog and review the logs to spot potential issues. The data stream can also be viewed live, as the vehicle is being driven. So one person can drive, whole another person monitors and makes changes. Any changes to the tune are done in real time, so there is no "flashing" of the ECU, like a stock system.

      The terminator X also comes with a 3.5" display that shows live sensor data in addition to having the ability to change various parameters of the tune. However, using a laptop offers access to more advanced features, like configuring I/Os, advanced tables, etc...

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    15. #15
      Join Date
      Aug 2004
      Location
      Austin, Tx
      Posts
      491
      Country Flag: United States
      You can create a 'warning light' with the Holley systems. It requires allocating one of the precious outputs though. On my system I have a red light on my dash that is driven from one of the outputs. You can set 'caution' and 'warning' limits on many of the gauges (temps, voltage, pressures, etc). You can then turn on the output / light based on any of these going into a warning zone.
      Bryan (a.k.a. Carbuff)

      70 Camaro RS Hunk'o'Metal - Previous Project
      71 Firebird Project T.O.W. - New Project

    16. #16
      Join Date
      Feb 2019
      Location
      Tampa
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      9
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      Does this system allow for plug and play of their digital dashes?

    17. #17
      Join Date
      Apr 2001
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      Quote Originally Posted by Guado1 View Post
      Does this system allow for plug and play of their digital dashes?
      Yes
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    18. #18
      Join Date
      Feb 2019
      Location
      Tampa
      Posts
      9
      Country Flag: United States
      Are you able to use standard style gauge clusters from lsx cars with this?

      Outside of using the holley dashes Im really at a loss on what gauges can be used.

    19. #19
      Join Date
      Apr 2001
      Location
      The City of Fountains
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      Quote Originally Posted by Guado1 View Post
      Are you able to use standard style gauge clusters from lsx cars with this?

      Outside of using the holley dashes Im really at a loss on what gauges can be used.
      Saying "LSx" cars is not precise enough. Do you have a particular car in mind?

      Generally speaking, if the car in question has CAN gauges, they will not work with any Holley system.

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    20. #20
      Join Date
      Jul 2012
      Location
      Traverse City, MI
      Posts
      574
      Country Flag: United States
      I've got a termi x on the way currently. Shouldn't take too long to get hooked up and fired up. I'll give my review on it asap.

      I'll say this about gauges. Any aftermarket gauge will work for nearly anything you put under the hood as long as you have sensor locations. It's kind of like a double check anyways. So the gauges operate independently of the ecu. Ideal? No. But it works great in my car.
      Project thread - https://www.pro-touring.com/threads/...ouring-Project
      IG - @tc_chevelle


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