I am also that guy that read reviews to see if it is worth but never seem to write one, but I have to make sure people know that this is one great product and that Holley stands behind it a 1000%. Stay up to date with the latest releases, events, promotions and more. The HP has 8 channel outputs the Dominator has 10 channels . - NO laptop required! *Possible delays due to Covid-19 click for more information. I just need your confirmation. After the 20 min drive I waited about 10 mins to restart with NO problems with the idle on the hot start - then the next day from a cold start I drove for 40 mins and waited about 30 mins to restart -NO problems again with the idle on hot start ! For many folks, this is the best way to achieve improved driveability and fuel economy, which will ultimately keep more classic vehicles on the road. IMPORTANT DOWNLOAD - These contain new instructions for V2 Installation, Features, Boost Control, and Traction Control. Yes. It's not a show car - it's just a nice old car we keep around but I'd like to improve the drivability as my wife is less forgiving of the odd stall than I am. Adding the ignition is not rocket science, but why complicate matters? Good choice, but I'd recommend going with the Holley Dual-Sync Distributor for the Ford 302 for all of the reasons that I mention in my article on Sniper Ignition Wiring.. (Note that the Ford 302 distributor stays on backorder so it's best to order one now and take advantage of our 5% off on orders that can't ship in one business day.) I figured we would start our review with the Quickstart Manual and then go into details later in the full Installation Manual. Some kits might even come with ignition and fuel system components. When selecting a pump, and lines, be sure each component is designed to perform at high pressure. No. Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) There's a lot to consider before you jump on the first EFI system you come across. The HP ECU can run up to 16, high or low impedance injectors. Also, my MAP reading is often below 50. The Sniper EFI system looks at the closed-loop fuel compensation required to reach your target AFR. Okay, great! Then reach out and ask this question again. Take a look at the Sniper Ignition Timing Control methods that are recommended and my tips for implementing them. Supports up to 650hp with Four 100 Lb/Hr Injectors! I am using the stock ECU from the LS1 2002 Camaro, with the 24-58 reluctor converter, injector adapters and needed sensor conversions, Texas speed and performance has done the basic tune. Started 1971 Blazer up and only adjusted AFR and runs amazing. As always feel free to edit as required. Does this kit include wiring for the electric fuel pump including relays? Let's get started! Capability Range: Advanced Handheld contents for Holley EFI V5 Firmware. Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) Based on this reading, along with other sensor readings, the system will increase or reduce the amount of fuel commanded, to get closer to your target AFR. Like it's higher-end predecessors, the Sniper EFI system can control ignition timing. This is the last version of software before the V2 update. There are a few conditions required for closed loop. By Micheal C on June 4, 2021 | Verified Owner. You should then check the fuel pressure with the pump running. Is this the right system for my vehicle, if not which one is? If your existing ignition works with a carburetor then it will keep working with the Sniper EFI System. I have a twin 350 mercruiser setup in my boat. Just saying. There are quite a few steps to correctly installing the ECU-controlled timing setup using the rotor phasing kit but the end result is a top-notch computer-controlled ignition for a very reasonable price. Advanced throttle body injection systems capable of transmission control and more. so I have my sniper pretty well tuned - (in terms of it driving nicely) My AFR table is smoothed with idle @ 13.8, cruise @ 14.5, WOT @ 12.5. however, I'm noticing im smelling a lot more gas than I remember when I first started this journey. But since the ECU is embedded in the Sniper throttle body it's not quite a straight-forward.I have no doubt that Holley is going to make a twin throttle body setup happen, and I would expect that this has some priority. Great kit and great price, first it looks perfect and compete The first time Holley took it back and worked on it and sent it to me, and about 6 months later started having a problem again, now keep in mind this is like 2 plus years after I bought it. You have to tell the computer that you want it to operate the fans. I am swapping out a LS1 motor in my 2002 Camaro Z-28 for a LS376/525 GM crate engine. Used for updated SD Card Contents on any 3.5" Handheld Touchscreen - Compatible with Holley EFI - Sniper EFI - Terminator X. Sniper EFI Software/Installer v1.3 Build:50 - Windows Vista,7,8,10 Compatible. EFI System Pro had everything I needed for my EFI upgrade. 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Holleys Sniper EFI systems bring fuel injection to the masses with carburetor-replacement systems that are designed to have all the benefits of electronic fuel injection without breaking your bank. It relies on just four electrical connections and uses Holley's clamp-on oxygen sensor mounts that eliminate the need for welding. When I started the car again, it idled great, but when I gave it gas to rev the engine a little, it settled to a ridiculously high idle. You need a source that is on not only when the ignition switch is in the "on" position but also when it is in the "start" position. :-) Be sure that we never try to convince someone that they need something unless we ourselves, in the same situation, would be convinced that it is the right thing to do. Can I use the Sniper on a truck with dual fuel tanks? Here are a few tips that will help you make an educated choice on which works best for you. - NO laptop required! Always read the instruction and follow proper installation procedures to avoid ECU damage. Blow-through applications will require the use of an external boost referenced regulator (example: 12-848). 2022Recurrent Ventures. So maybe I'll go back to a low rise manifold and centrifugal/vacuum advance HEI. How far do I put the O2 sensor away from my manifold? I own 4 sets of these, and out of the 4 one of them one has had an issue 2 different times. The purpose of the boost (or manifold pressure) reference port on the regulator is to ensure that the pressure of the fuel line relative to the pressure at the outlet of the injector is fixed. If it is not flashing when you are cranking, check that the unit is correctly powered and the connection and signal coming from your crank signal source (distributor, crank trigger wheel, etc. Unfortunately no, All of our systems utilize a stand alone harness. I tried to install the bung in the topside of the pipe but this didn't work do to the exhaust pipe being to large i couldn't get enough flow fast enough at idle for a good reading. If this is something you plan to own and grow over time? It is likely you will have to run a more-expensive wet-nitrous system. Yes, the fuel pump relay is built into the Sniper EFI Main Harness. Holley carburetors operate at a range of 5.5 to 7.5 psi of fuel pressure and use a 40 micron filter. Check it out. Yes, the combination of the Sniper EFI System, Holley HyperSpark distributor, and the Sniper Fuel Tank System would be a great combination for your '69 Camaro. Can I run my MSD 6AL box with my Sniper EFI? Choose one of these methods initially. Only 4 Wiring Connections Required! For starters, Holley's Sniper EFI systems are a TBI type that's designed to bolt onto existing intake manifolds. That extra 8-pin connector provides sensor ground, voltage, and inputs for up to 3 custom sensors. All of our EFI systems only require one O2 Sensor to operate. This can result in a weak TPS signal to both the throttle body and the transmission and could result in transmission failure or other system damage. The Sniper has -6 AN male inlet and return fittings. Self-tuning ECU means you dont have to be a computer/tuning wiz to have EFI! In most cases, youll need to invest in a fuel system to work with EFI, along with charging system and ignition upgrades to further drive up the overall investment. The Sniper will require 58-60PSI. Changes include updates to run Holley EFI Coyote VVT Module, Drive-By-Wire updates, and other items. Don't get too wrapped up on this one. It has had the spark control system disconnected, a vacuum advance distributor installed (pulling vacuum from the manifold) but retains a Thermoquad from the era. Jason. I installed my Sniper EFI, but how do I use my kick down for my C4 transmission? The second great thng about this system is how well the self tuning works, my car started up on the first time after the install. 2023 Holley Performance Products, Inc. All Rights Reserved. Once it starts to run on its on the performance and response is great ! The coil driver is used, I guess, in place of the ignition box. I would recommend installing it initially with the ignition you have now. Why should I choose Holley over another manufacturer? However, there are some issues you should be aware of. What type of camshaft can I use? Very easy to install and it looks great.Holley should be proud of this one, By Dan E on March 23, 2018 | Verified Owner. My advice, use the coil driver for simple ignition install. Sniper EFI 4BBL Master Kits with Fuel System, Holley EFI CAN to USB Dongle - Communication Cable, Earl's -6 AN Male to 9/16"-18 (AN6) O-ring Port, Sniper EFI to Holley EFI Dual Sync Distributor Adapter Harness, Hooker BlackHeart Oxygen Sensor O2 Bung 3.0" Clamp-On Style, Hooker BlackHeart Oxygen Sensor O2 Bung 2.5" Clamp-On Style, Hooker BlackHeart Oxygen Sensor O2 Bung 2.25" Clamp-On Style, Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended), Throttle body mounted ECU no extra boxes to mount. Even before this, I would go to car shows and tell people to buy and they would love it, I love it, hit the key and it fires right up and runs amazing. WebDid you know that Sniper EFI is certified to United States Coast Guard Requirements for Ignition Protection & Fire Resistance. I have the sniper unit wht heat rang plug should i run for a stock 350 chevy with auto an what should timing be. Can someone give me a quick explanation of what the coil driver is used for? And in your situation the Sniper EFI system is not at all what we would recommend. I would start with a digital probe on the wire between the MSD6 tach out and the pin A of the 7-pin connector on the Sniper EFI. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions! You will have to invest in a nitrous controller. When I tightened the fitting, it got worse and I had a dripping leak. Failure to follow any installation instructions as minor as they may seem can result in performance issues including damage that will not be covered under warranty. The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn! The Sniper system does not support this ignition type. They are capable of driving "Smart" coils, Holley DIS coils or 2 wire high current "DUMB" coils with the addition of the 554-112 high current coil driver as well as Waste Spark applications. Use the on board timing system not a divorced one Hookup every function you possibly can Use and program all functions possible including there safetys Make sure all connections are correct. In this option, you replace the existing rotor with the MSD 84211 Rotor Phasing Kit. Do I need two o2 sensors sense I am running true fuel exhaust ? I've had mine installed on my 1984 CJ7 with a 4.6 Newcomer Racing engine for about a year now. While it is absolutely advantageous to allow the Sniper to control timing, first get the engine running with the existing ignition system (assuming you have a working ignition system.) The Drive has answers. Connects directly to battery positive terminal - CONNECT LAST, Connects directly to battery negative terminal - CONNECT LAST, Engine Speed Input (ONLY FOR USE WITH COIL (-) IGNITION SETUP), Optional - Connect to aftermarket tachometer, Optional - Connect to Holley EFI Analog Gauges (using 554-130 Module), Optional - Used for programmable 0-5V sensor input, Optional - Used for programmable ground output. It will also have a pink wire that will need to go to the ignition switched 12V+ that is powered during run and crank. If you have an capacative-discharge box that has a tach-out signal on it, then that is the way to go. The learn percent is not a percentage of completion as many think. The Dominator EFI has ability to run a GM 4L60E , 4L80E Ford AODE and 4R70W. switch but no during cranking, is there an ALT method. is there any way to change that ? Automotive Wiring: "Good Enough" Is Anything But! You will need to cap off or plug your other ports in your exhaust system. You can simply use the handheld for a tuning device and then unplug. I'll be upgrading the alternator from 1g to 3g soon to eliminate some voltage issues. DOWNLOAD AND READ THIS FIRST. This includes 20 feet of 3/8 EFI Hose, in-line fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. I'm not being negative, just sharing some things that would have been good to know.Bee Jay. Can the Sniper be used with a dual plane manifold? I've also seen cases where RFI noise inducted on the TPS will make the ECU think you are depressing the throttle and that will take it out of closed loop. High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays. In addition what should I time the distributor to once I lock it out? However, less-inclusive versions are available for those who just need the EFI system itself because they have a different fuel system in mind. Possibly, You will need to test fit it to see. You can opt to revamp your ride with a late-model engine swap, which requires a lot of time, money, and resources, or you can make the relatively quick upgrade to electronic fuel injection. Find a lower price anywhere and we'll beat it by 5%! Will the coil driver from the Sniper work in a Terminator setup? View Holley Sniper EFI Self-Tuning Kit - Shiny Finish, View Holley Sniper Stealth 4150 - Black Finish, View Holley Sniper EFI 2300 Self-Tuning Kit - Classic Gold Finish, View Holley Sniper EFI Rochester Quadrajet (Q-Jet) - Classic Gold Finish, Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended), Throttle body mounted ECU no extra boxes to mount. I does not come with any linkage for the throttle cable or trans kick down rod, also no fuel pump block off plate or electrical connectors that were mentioned in the install video. It is reliant on the data acquired by the included wideband oxygen sensor. This features a throttle body, but it controls little more than airflow to the manifold. The injector spray ring seems to be more under the throttle plates, which would usually dictate that the injectors would be exposed to manifold vacuum, and therefore would need the boost port on the regulator to be plumbed under the throttle plates.Most blow through carb guys would plumb the regulator boost port into the carb hat. Once installed set up with the tuner was super easy and truck fired up on the first try. Holley will be there after the sale. And it's completely plug-and-play with your engine. If the fuel pump primes when you turn the key to accessory, it is guaranteed that is not wired properly. Can I use a Vacuum advance with the Sniper? It runs great. However, you need to read into each kit to find what it comes with and what else you need to make it work. Watch along as Jeremy shows you how easy it is to update the firmware on your Holley Sniper EFI! What spark plug will work best with ford Cleveland motor with Holley Sniper fitted. We want to make sure that when you get your system that you're not having to do a bunch more shopping before you can start the installation. Setting the throttle position and response was a little difficult for me and the instructions didn't seem very clear, but that could just be my fault. Whenever I hear that the AFR is pegged at lean and that the engine is running rich I immediately think: Failed O2 Sensor.I could write a book all of the possibilities here but here's what I'd suggest as the easiest thing to get the car running again. Holley EFI V5 Build 171 Complete File Set - Include Software/Firmware and all Digital Dash or Handheld Firmware. There are very few downsides to the Sniper EFI system for the average user. Any reason this part will not work on the Terminator EFI with the Holley Dual Sync, and eliminate the MSD 6? Opened the box and found this kit is awesome it has everything and looks great. -6AN Male to -6AN Female, Oil-Filled - 0-100 PSI - 1/8" NPT Male Thread, Earls -6 AN Male to 9/16"-18 (AN6) O-ring Port. It can stage two sets on a 4 cylinder. How do I know if my Sniper has fully learned? We actually recommend initially starting the engine with your existing conventional ignition system if it is in place and properly functioning. Can the fan/ fans be programmed to come on with the AC ground signal? Sniper EFI. By Dale J on March 8, 2018 | Verified Owner, We put this on our 1966 Mustang with the 289.So far so good. The learn percentage display, is the percentage of learning based fuel compensation. Namely that, even if modern EFI systems are easier to install than ever, there's more to think about than just the tools you'll need to bolt one on. LS Fest West 2023: LS Swapped 1967 Twin Turbo Slingshot Dragster, This 1964 Ford Galaxie Restomod Packs A High-Voltage Punch. These are available from companies such as TCI. First, re-run your setup wizard just like you did when the Sniper was first installed. Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) Yes--you need switched power to "turn on" the Sniper EFI System via the pink wire 7-pin connector (it doesn't draw any power from that but gets its power from the heavy-gauge red wire.) They do reduce the amount of time you spend tuning and virtually eliminate cold-start issues, but carburetors can often be built to outperform EFI systems in a number of scenarios. Will the Sniper work with my aftermarket drop air cleaner base that I used with my Holley carb? A: That depends on how far off your carburetor is in the first place. All systems that include a Dominator based ECU can controll the following transmissions. Self-tuning ECU means you dont have to be a computer/tuning wiz to have EFI! So manifold pressure referencing is irrelevant on a naturally aspirated or draw-through supercharged engine, since the injector will never see vacuum.But if you are doing a blow-through application, you sure better account for the pressure that the injector is going to be spraying into. Worst case, use a good Walbro 255 LPH inline fuel pump to get the system running, and then install it in the fuel tank later if it's too loud for you. But that' s definitely not what you want.What you might try is diconnecting power to your starter and having an assistant hold they key in the "start" position while checking all of the terminals in the fuse box. Im still dialing in the sniper. Holley Sniper EFI Holley Dualsync Stainless Long Tubes to 2.5 Exhaust UMI Suspension Stage 2 CPP Steering setup 10 bolt rear - 3.55 with Eaton Posi Reply Save Adjust the fuel map. Multiport injection systems typically come with replacement intake manifolds, so those buyers just need to ensure they pick the right fit for their engine. In addition, there is a full manifold vacuum source on the front that is shipped with a pipe plug. I had actually called to inquire as to which upgrade card i needed for. Throttle response is amazing and it made my ZZ4 come to life. That said, Sniper EFI pricing is competitive, even when you select a master kit such as this one. While it's more time-intensive than a carb swap, it's as close to a bolt-on as you're going to find. Great question--this trips folks up from time to time. Any suggestions to remedy the hot starts. Contains all previous V4 software versions (Build 30 and 32) in a zipped file. No, the Sniper does not have the capability to control any electronically controlled transmission. Do not install the sensor straight up and down or vertical. The included O2 sensor is all that is needed for our Sniper TBI systems. - NO laptop required! The HP and Dominator systems can be programmed for any concentration of gasoline, Ethanol or Methanol. Pros Cons Included You've got questions. Wow--thanks for the detailed report, Bee Jay! Would you recommend it? However, what you are describing sounds like something got confused. Can the Sniper control my electronic transmission, for example, a 4L80E? I hope the product works as advertised Stay up to date with the latest releases, events, promotions and more. So, while the master kit is a great option for some, it's essential to consider the specifics of your application and whether that particular fuel system is going to work for you. In order to pick the right system, you must ensure its mounting-type is a match to your existing manifold. I only have a 100 miles on it but has been good so far as this is my daily driver. Pay the couple hundred more bucks and buy a product that works out of the box with out spending hours to days tuning. Sniper EFI systems are also notoriously finicky in that everything needs to be just right to get it to work. By Ernesto P on March 7, 2018 | Verified Owner. We recommend that you install the O2 sensor approximately 6-8 after the merge. Instead, it provides you with a new set of tools for doing what technicians have been doing for 100 years. WebHolley has a Sniper EFI kit for just about any combination you can dream up. Contains the latest V2 3.5" touch screen firmware and installation instructions, Contains the latest V3 touch screen firmware, Contains latest V4 firmware and installation instructions for the 553-108 3.5 Touch Screen, Holley EFI V5 Firmware update for 3.5" TSLCD, Holley EFI Boost Control Quick Start Guide, Holley EFI 16 Injector Setup (8 Cylinder Engines) Setup of 8 Injectors in 8:2 Amp Peak and Hold Mode. I am also planning to get the Holley distributor and Sniper fuel tank. The main challenge is getting it learned but once she has learned the table this is a awesome kit. Is the Sniper approved for use in marine applications? A lot of folks simply won't even give it a try when I point them toward their ignition because it sounds so preposterous. Both the HP and Dominator systems have integrated water meth capabilities. Holley EFI systems offer flexibility and modular upgradability that is not offered by other manufactures. Put my sniper on a Chevy 350 and so far nothing but smooth sailing.