There is a great resource comparing the different Holly HP ECU, Dominator ECU, Terminator X ECU, and Terminator X-max ECU's Here. A 4-barrel throttle body injection system has been discontinued in favor of the Holley Terminator EFI (see below.). ram and after some reading I start to think to go the EFI route instead of the two Here are the configuration settings you'll need to use when using the HyperSpark Distributor with your Terminator Ignition System: Terminator Ignition Wiring with Holley Dual Sync Distributor. I came here for advice if I should keep my MSD box or just fork out the money and get the whole hyperspark system. A lot of fuel.Here is the route I would take. I may the only person in the world that followed Holley's suggestion to remove extra wires from 2 harnesses provided but now I find that I cannot go back. Be sure to read this PDF that does a side-by-side comparison of the different ECU's. Holley says you can only control up to 10 cylinders with the Dominator ECU. Who else does that? Don't get me wrong, I'm all about doing things in a cost effective way and am always looking for the best bang-for-your-buck. Your desription allows for a broad range of solutions from nearly every category of the article above. Coil – engine speed input “Use this if you are using a stock type mechanical advance distributor with a stock inductive ignition coil. This is a good way to go if you want a custom EFI system with electronic transmission control. going to 12v ignition, and a separate 12v ignition going to the coil. Hooked up to holley efi fuel tank system, all new Msd ignition. I encourage you to carefully consider the costs. And it will work great with the Terminator EFI Throttle Body Injection System. Just reach out when you're ready to buy! I would like to use timing control function on my Sniper efi. Holley offers two *three methods, using either the new Holley HyperSpark Distributor, the Holley Dual-Sync Distributor or the other involving an MSD distributor with a rotor phasing kit I will discuss those and then offer one more off-the-radar solution that some may want to try. An additional benefit of the Terminator is that it can do ignition control using the GM small-cap HEI ignition. Then I decided to go all the way and bought the holley dual sync dist. I am saying that with some certainty since If no HyperSpark Distributor is available for your application then I recommend performing Sniper timing control with the Holley Dual Sync Distributor. This should work well for you. This method requires that you get a GM Large Cap HEI distributor with the 4-pin module in it. Backfire through the tailpipe, through the intake, not cool. Remember that the Terminator also has a points output just like the Sniper. However, I just spent HOURS helping a guy who was in this situation with his small block Chrysler 360 and although he's got spark the engine won't hit a lick. Connect the other wires as shown in the previous examples. Or does it require the use of the CDI and associated coil? I am also running the stock th400 transmission,which is electronically controlled. You need electronic transmission control. Gen-3 HEMI instructions.docx. Fuel Injection has dramatically improved allowing just about any engine to have a high-tech and efficient fuel delivery system. The 4-pin module has connectors labled B, C, W, and G. Attach them as follows: I have heard that sometimes it is necessary to reverse the purple and green wires on some distributors. This blog post is absolutely overdue for an update! If that is the case then you're going to have to contact Holley Tech Support to have the system checked out.If you reconnect the 10-pin connector (as described in the previous paragraph) crank and do get spark but it won't crank when the coil wire is replaced there may be some sort of timing issue or the plug wires are not in order. What is the difference with the Terminator with trans controls and the Terminator XMax system? The one you reference in your question appears to be what MSD calls a "ready-to-run" distributor--that is, a direct OE replacement. Just like Martin in his immediately-previous comment, you are going to be hard-pressed to beat the Sniper EFI System for the rather straight-forward requirements you have listed. But it can handle up to 10 cylinders, while doing electronic transmission control and drive-by-wire control. Both mechanical and vacuum advance must be locked out and a rotor phasing kit must be installed and adjusted accurately. This confounds folks that even have the advantage of a phaseable rotor. Installing this is much more of a slam dunk. That is my recommendation. This is a fantastic video, even better Any Terminator EFI System that can control electronic transmissions or drive-by-wire throttles is using a Dominator ECU. Holley … I'm planning on getting the Sniper EFI, Sniper Hyperspark distributor, and Sniper Hyperspark Coil. Watch this video for detailed instructions on how to setup an MSD Pro-Billet Distributor for use with the Sniper EFI System. )However, I think you're in for an exercise in frustration if you try to use your existing ignition to do EFI-controlled ignition timing (which will be critical to getting the performance and economy you seek.) I have the main coil unit, a slave solenoid for the starter, and a 50 amp breaker that is wired to the slave solenoid and the starter. I don't think of anyone that has failed in this effort. coil driver is directly attached to the battery (-).The main + and - are going directly to the battery posts.The initial setup screen on the display checks out OK. I asked him what I should disconnect (as far as emissions controls, etc.) Nothing beats it for plug-and-play simplicity. Yes, that's even a few dollars more than the MSD route. But, I have known some really bright guys who have failed to make this happen even when using the Holley-endorsed method of an MSD Pro-Billet Distributor and rotor phasing kit (which is why I don't endorse that.) Sniper 4500 Insructions. Truck ran fine before the swap. Does the terminator offer 8 cyl sequential fuel and spark like the dominator does, since it is the same ecu? You simply drop the distributor in place, lock it down, and install spark plug wires. I can't recommend EFI System Pro enough. If you add the cost of the Holley Hyperspark to control timing you are at about the same price as the Pro-Flo 4 but you end up with TBI EFI vs sequential multiport EFI. not sure how that happens unless you've blown a hole in the top of a piston. I have read a few places that it is possible to use a Ford TFI distributor by modifying the shutter wheel to have 8 equally sized shutters and adjusting the pickup location to match the input in crank trigger offset (i.e. All wiring hooked up just like it is shown for no timing control. TERMINATOR X PC SOFTWARE: VERISON 1.0 BUILD: 102 –Terminator X PC Software: Phase 2 Terminator X ECU Firmware Various Calibrations added to the “ase als” folder Opens up parameters to support Universal MPFI ECU Firmware Added Ignition Types: CD Box, Coil (-), Ford TFI, GM HEI, Holley Dual Sync, Magnetic, Sniper I bought the sniper efi and installed it with my Mallory Unilite dist. Hope to hear back on suggestions for distributor, I'm very close to ordering the parts needed once I figure this part out. The ability to run dry nitrous and have the ECU add the fuel? Each time you do you should observe a spark on the cylinder identified above. Holley does not make a tach drive dual-sync distributor as far as I can tell. These do not include a touch-screen handheld with a setup wizard, but we will configure it to your specifications before we ship it so you don't need no stinkin' wizard. Can I purchase a coil driver module instead of a separate CD (MSD 6A) box to signal the coil?Note: This will be the initial startup of this motor.Thanks in advance,-GaryB. Very knowledgeable about the products they sell, always happy to talk you through your options and point you in the right direction. The holley sniper efi 650 system seems to be a good option. The attached picture showes the wiring as it is on my car now.http://1.cdn.lib.americanmuscle.com/files/guide-14204-13.jpgHope you can guide me. The Terminator EFI utilizes either the HP or the Dominator ECU (although a "Terminator" sticker is usually applied to the ECU itself.) Let's start by narrowing the This is the kind of question I really enjoy. I highly recommend using the Holley dual-sync distributor instead. Of course, that often requires the services of an expert tuner with a dyno, but it is generally well worth the cost and effort. The engine is now a 496 stroker and isn’t able to run at full potential due to the factory fuel injection set up. As I'm reviewing installation instructions and watching videos, it appears that by removing my original distributor, (1980 Corvette, 350 SBC...pretty much stock)...that I am going to lose my coil. Chris Myer is a tremendous resource for info and questions. I can read a single O2 sensor. But the vacuum advance disappearing as you transition to WOT is determined by the manifold pressure. It’s an ideal platform for anyone that wants all the benefits of fuel injection with the versatility and tune-ability that only Holley EFI can provide. I've just had total timing low but I'd like to have full control. If you choose the MSD distributor route for doing Sniper ECU-controlled, timing, I do have some suggestions. But maybe better late than never?Believe it or not, one of the biggest reasons behind any go/no-go decision on an ECU devlopment is the number of inputs and outputs required and the cost/benefit tradeoff. Good question, Jordan! EFI Systems based on Holley's world-class Dominator and HP ECU's. Unfortunately my build isn't as cookie cutter as most. Im looking a the Sniper system and it says you cannot use a small cap Gm Hei. handy ignition testing technique for point-output controlled systems. Recently installed a sniper kit with the hyper spark distributor. But what if you want more? Regardless of what type if ignition you have, if it is working well for you before you install your Sniper EFI System it will continue to work well after the system is installed. Im trying to do my home work before i buy a replacement efi system for a worn out 95 gm TBI on a 454. However, if you already have an MSD box that is working and if you are handy at making wiring connections then it may be worth the money you would spend on the HyperSpark box to wire in your existing MSD box.The only thing I'd point out is that MSD boxes don't last forever and it would be a bummer to do all of that wiring on an older MSD box only to have it croak a few hundred miles after you did all of that work.Another thing I'd check is if your MSD box has the tach sweep feature and confirm that can be disabled. Pardon me for answering your good question with another question of my own. The cam signal is not at all beneficial in throttle body injection and is unnecessary for ignition control.I'm afraid that I don't know enough about your specific setup to start suggesting what to start yanking. What works best for you will depend on product availability for your application as well as your budget (not to mention your ability to deal with frustration.). Yes, I know that many of you come into this relationship already having an suitable MSD distributor. Im planning on going to a Vortex throttler body when i get around to making a new plutonium. I might just be missing something? It provides switched power to the Sniper EFI System, the HyperSpark Ignition Box, the HyperSpark distributor, and my 4L60E transmission controller. Everyone raving about customer service is telling the truth! Holley Sniper EFI VS Perussäädetty kaasari veto 2: Moottori lähti käymään kuin palmun alta ei minkäänlaisia ongelmia tyhjäkäynti tasainen 750rpm ja mukavan kuuloinen käyntiääni kuunnella. Without it, you are really going to have your hands full. Good luck! They are the only way to go in my mind. If so, where in the wiring diagram? Download Holley Hp Vs Terminator X pdf. Signals A-K represent the 10-pin ignition connector on the Terminator main harness. Ken says he reloaded the setup a couple of times and the problem went away and everything runs great now.
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