Hey guys, new sniper efi owner here, just installed on my 63 impala with 327. Howell Engine Developments, Inc. Dominator® systems have nearly unlimited capabilities to control any power adder, input, or output you can throw at. To deliver a fair and unbiased report on why the owner of this classic Bronco wanted to replace the Holley Sniper TBI unit with an Edelbrock Pro-Flo 4 EFI, we referred to both the owner of the vehicle as well as the builder, Gateway Bronco. Lucky for me, the Sniper EFI doesn’t require me to upload and adjust fuel maps or tables. Ive been a die hard carburetor guy but I think its time to try something new. Here we look at the Holley Sniper, FiTech Go Street EFI, and the FAST EZ-EFI. Put an end to cold start issues, hesitations, vapor lock, and. I can't help but notice all the problems people are having with the new system, including myself. It’s designed to be a. 0 and FiTech. Holley Sniper EFI Electrical. I was wondering if the engine would be able to run with this and peoples experiences with this setup?. 0 with no mention about the 2. Holley apparently moved the date to sometime in september. use the stock pump and line to get the fuel to the sump in the engine bay and let the FiTech pressure it to the injectors. Holley has been the undisputed leader in fuel systems for over 100 years. 0 with no mention about the 2. Holley® has been the undisputed leader in fuel systems for over 100 years. Can you tell which difference between before and after conversion to the Holley Sniper EFI you have, in fuel consumtion (mpg or l/100km), throttle Response and engine Power. Dominator® EFI Vehicle Management Systems are intended for all engine applications, from street to unlimited high–end racing applications. problems that may occur on dual planes. FUEL PRESSURE REGULATOR Holley Carburetor Carb Quick Fuel GAUGE 30-803-SWG - $39. holley sniper unit fitechefi unit both of these units seem real good and same price points. The Holley Sniper EFI TPS is reset back to 0 by simply turning off the car. Put an end to mysterious air/fuel ratios, jet changes, and cold-start rough idle troubles with Holley Sniper EFI. Soon there will be a CAN bus connection that will allow Sniper to use many new Holley EFI gauges and displays. Proprietary parts - Injectors, TPS, Fuel pressure regu8lator ect. This is a great time to visually inspect the overall Sniper EFI install. Holley Sniper EFI - LOW MILES (Austin) $800. Pink Wire must be attached to a 12V+ switched source that has voltage during cranking and run positions of the ignition switch. That tells me the EFI was working just fine, but your cam selection doesn't match the compression ratio you are ruuning. Many other "plug and play" parts are available and more are coming. I assume you checked out the holley efi sniper forum. Has anyone installed the Sniper EFI system on a vintage Mopar? Specifically wondering about how the fuel return was handled and if the pump was mounted in tank like Holley suggests or frame rail mounted. Holley has posted multiple tuning. For problems or questions regarding this web contact us. The Holley Sniper EFI Self-Tuning Kits feature all the benefits of EFI, and are a perfect option for street cars, muscle cars and off-road vehicles. This is a great time to visually inspect the overall Sniper EFI install. FiTech and HOLLEY sniper EFI kits If this is your first visit, be sure to check out the FAQ by clicking the link above. Holley’s New Take on Electronic Fuel Injection Holley decided to address two of the key issues with an EFI conversion: ease of use and full-featured functionality. Sniper EFI I do have a couple tips for you if you're interested too. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. They want you to send the whole thing back to them to "service " it. I went with efisystemspro. "The HyperSpark is made to be a direct plug-and-play to Sniper EFI units only," says Jeff Teel of Holley Performance Products. Holley has designed the Sniper around Holley "plug and play" parts. The Holley Sniper EFI Self-Tuning Kits feature all the benefits of EFI, and are a perfect option for street cars, muscle cars and off-road vehicles. Holley says the Sniper EFI will work on a spreadbore intake, but I still used a spacer/adapter. 0 with no mention about the 2. The engine is a turbocharged 363 custom small block Ford. Put an end to cold start issues, hesitations, vapor lock, and. There are not any O2 leaks that I can find. Holley Sniper. Yeah, I saw the same info. Of course overall if it was a big improvement or not. Can be installed with just 4 wiring connections (Batter +, Battery -, Switched Ignition & RPM). Now, Holley EFI products power these cars and are dominating the performance world. 0 and FiTech. It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for Full Size Jeeps, as well as nearly any carbureted vehicle. I just ordered Master Kit today, Part#: SNE-550-511KItem: HOLLEY SNIPER EFI KIT. This throttle body fuel injection replaces any square bore or spread bore style 4-barrel carburetor. Some people choose to erase it. We installed the. The Holley Sniper EFI kit supports up to 650hp with four 100 lb/hr injectors! The ECU is mounted directly to the throttle body eliminating the need to find additional mounting locations for the box. These intakes are more robust, good looking, and perform above and beyond the original Sniper EFI series of intake manifolds. Economically priced to save your hard earned money for other parts of your build; Holley Sniper EFI is a self-tuning, plug and play fuel injection system that takes all the trouble and guesswork out of your switch to modern electronic fuel injection. One of the engineers for it is active in a thread on the Chevelles forums. The temperature sensor needs to be installed anywhere but in the thermostat housing, in the intake, head or block. The Sniper EFI handheld monitor features a colour touchscreen for setup and gauge views, plus a calibration wizard, and is self-tuning which means anyone is able to set it up. Holley just brought EFI within range introducing Sniper EFI master kits! Its economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. HOLLEY 550-511 FUEL Injection System Holley Sniper EFI Self-Tuning Handheld EFI - $1,733. was formed in 1988 by Bill and Matt Howell to support the growing trend towards the use of electronic fuel injection in the Hot Rod/Street Rod and Four Wheel Drive Industries. My short answer is no haha. Functions down to 6 inches of vacuum and it's the same cost as the FiTech stuff. When I pull up to a light and stop the idle dips to around 500rpm then withing 10 seconds it will finally rebound to 750 where i have it set on the hand held. Initially I used a Blaster 3 coil and a Pro-billet distributor that I locked out and installed a phaseable rotor on. This driver circuit allows both PWM control (pulse width modulated), and direct internal relay drive of the fuel pump. These full-featured throttle bodies are easy to install, can support a lot of horsepower, and will keep your budget intact. Holley: Sniper EFI HyperSpark Ignition System If you want to upgrade your ignition system due to a recent Sniper EFI installation, the HyperSpark ignition from Holley adds easy ignition timing control to nearly any Sniper EFI. This has become a very popular upgrade on many of our engines. Was only installed for a few months then removed. HLY550-516 Holley Sniper EFI Self-Tuning Kit - Classic Gold Finish. Holley Sniper efi So I sent back the FAST and bought the Sniper mostly because the reviews were terrible and also tech support and customer service seems to be awful. I will list them to keep them organized as there are a few. I've had the Sniper with a dual plane for almost a year now and have no problems because of the manifold. If you have an older version, an update is easily obtainable through the Holley website, and can be downloaded to the SD card in the Sniper EFI hand-held controller. The full-featured throttle body is easy to install, can support a lot of horsepower, and will keep your budget intact. Holley 550-510 Holley Sniper Efi Self-Tuning Kit Holley 550-510 Sniper EFI Kit Holley just brought EFI within range - introducing Sniper EFI ! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride!. Holley Sniper EFI Electrical. I can't help but notice all the problems people are having with the new system, including myself. Holley just brought EFI within range – introducing Sniper EFI master kits! It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Holley Sniper EFI Fabricated Manifolds continues to push the aftermarket by introducing applications for Mopar Gen III Hemi Engines. Installing the Holley SNIPER EFI Kit Click Here to Begin Slideshow I've been a Holley fan since I could say the word "carburetor" correctly, so it's no surprise when I say that one of my favorite manufacturers of electronic fuel injection systems is Holley. The Holley Super Sniper High Performance EFI kit comes with a coolant temperature sensor and an O2 sensor, both of which must be used for the EFI to work properly. – Anthony Coles, Holley Performance The aftermarket has seen a boom with the Coyote as well. So I quickly realized that the adapter for the Holley to Weber is for an approximately 36MM bore, the Sniper is 40mm bore, no biggie, I have to get the intake off and hogged out, so I will get my guy to make it bigger at the same time. Holley Performance 550-511 Sniper EFI Self-Tuning Kit. I went back and forth on the Holley or the fancier FiTechs, but ultimately liked the $795 price point, didn't see myself using timing control, and liked the idea of going with something that'd been around a while. The same as you described. If they are Holley will not assist you with finding replacements. Once I decide to EfI my 68 Shelby it was no turning back. It's an Edelbrock perf rpm. Solving RF Interference Issues in Sniper Installations Posted by Chris Myer 05/25/17 5 Comment(s) Holley Sniper EFI Instruction , In my experience the far majority of Sniper EFI customers never have a problem with radio frequency / electro-magnetic interference (RFI/EMI). After a few minor problems with the car itself and some minor tweaking , its a beast. I installed a Holley in tank retrofit pump and sending unit. Here we look at the Holley Sniper, FiTech Go Street EFI, and the FAST EZ-EFI. Dominator® systems have nearly unlimited capabilities to control any power adder, input, or output you can throw at. I would like to do a conversion on my 65th Riviera too. Can you tell which difference between before and after conversion to the Holley Sniper EFI you have, in fuel consumtion (mpg or l/100km), throttle Response and engine Power. Posted by 05/25/17 2 Comment(s) Holley Sniper EFI Instruction, In my experience the far majority of Sniper EFI customers never have a problem with radio frequency / electro-magnetic interference (RFI/EMI). Here are some tips! IntroductionOk, we have enough Sniper systems out there that I thought it would be a good idea to create a posting on challenges that might arise during installation. Holley just brought EFI within range! Introducing Sniper EFI! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Holley just brought EFI within range! Introducing Sniper EFI! It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Holley apparently moved the date to sometime in september. We Test It: Holley's New Sniper EFI Hot Rod Network Staff. I started by adjusting the fuel prime - which squirts a small amount of fuel into the intake to aid in. Holley just brought EFI within range! Introducing Sniper EFI! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Holley now has an in tank fuel pump, gauge sending unit option for the 15 gallon tank. Holley just brought EFI within range with their Sniper EFI Self-Tuning 4 Barrel (4bbl) Master kit with handheld EFI monitor. 0 with no mention about the 2. All parts including the Holley tank with in-tank pump, new braided lines with AN fittings, Holley EFI distributor with MSD box to be able to have the system adjust the timing and the Sniper unit with touch screen totaled about $2k. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water/meth injection, speed inputs, fuel pump control, AC. The domestic aftermarket performance world has been abuzz about the latest low-cost EFI systems, one of which is Holley's new Sniper EFI. I have a Sniper on my 401 and I helped 401jim put one on his 360 engine. It puts an end to carburetor cold start issues, hesitations, vapor lock, and flooding. Edelbrock has been delivering the best combination of dyno proven electronic fuel injection performance for over 40 years. Holley just brought EFI within range - introducing Sniper EFI master kits! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. I do think the holley might have a few extra points over the fitech in the same price point. Eliminate typical carburetor cold starting issues, hesitations, flooding and vapor lock. 0 and FiTech. It will be installed on my 1970 Javelin 390. With a retail price of just less than $1,000, it offers. As the title states, this video is an unboxing of Holley's Super Sniper EFI system (650hp). Holley's New Take on Electronic Fuel Injection Holley decided to address two of the key issues with an EFI conversion: ease of use and full-featured functionality. My experience with the Sniper EFI has been great. Holley's products also include performance fuel pumps, intake manifolds & engine dress-up products for street performance, race and marine applications. Yeah, I saw the same info. 550-511 file photos. Holley Sniper EFI version 1. Holley Shiny Finish Sniper EFI Self-Tuning Kit. The thing with Holley though is when you talk to tech support they are inconsistent. Of course overall if it was a big improvement or not. Developed specifically for LS engines and available for both cathedral-port and rectangular-port cylinder heads, they feature dual plenums and dual throttle bodies in a unique, innovative design. It's an Edelbrock perf rpm. Our Infinitybox system can interface with any electronic fuel injection system in the market. Edelbrock has been delivering the best combination of dyno proven electronic fuel injection performance for over 40 years. HOLLEY 255 LPH OE STYLE EFI FUEL TANK MODULES. Really odd that holley is so far behind. And this is over 2 years of troubleshooting. QUICK FUEL# 30-803 FUEL PRESSURE REGULATOR4 1/2 - 9 PSI 3/8 NPT PORTSWITH4 1/2-9 PSI FUEL PRESSURE GAUGEWHITE WITH BLACK NUMBERS FEATURES: A HIGH FLOW CAPACITY FOR SINGLE 4 BARREL ENGINES UP TO 600 HP BENEFITS Enables you to regulate your fuel pressure based on your carburetor and vehicle application needs. Shop for Holley Sniper EFI fuel injection kit 550-511 with confidence at AutoZone. Installing the Holley SNIPER EFI Kit Click Here to Begin Slideshow I’ve been a Holley fan since I could say the word “carburetor” correctly, so it’s no surprise when I say that one of my favorite manufacturers of electronic fuel injection systems is Holley. Add Sniper EFI systems and components to your arsenal today. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. Just ask google and the internet will give it to you. For those not wanting to deal with the potential quirks of a carburetor, this is the way to go. was formed in 1988 by Bill and Matt Howell to support the growing trend towards the use of electronic fuel injection in the Hot Rod/Street Rod and Four Wheel Drive Industries. The Holley Sniper EFI Self-Tuning Kits feature all the benefits of EFI, and are a perfect option for street cars, muscle cars and off-road vehicles. The built in ECU keeps the wiring neat and tidy with no need to run the computer and associated wiring back into the cab of the vehicle. Proprietary parts - Injectors, TPS, Fuel pressure regu8lator ect. I really like the software used for tuning the new Holleys - they put a lot of thought into laying it out so it's easy for someone new to EFI to understand. This is an optional feature and is NOT required for proper functioning of the fuel injection. The complete system consists of a CD Ignition Box, Billet distributor with Hall effect crank signal sensor, an ignition coil, and complete wiring harness ready to plug and play with your Sniper EFI System. Eliminate typical carburetor cold starting issues, hesitations, flooding and vapor lock. SKU: HLY550-516. The Sniper EFI handheld monitor features a colour touchscreen for setup and gauge views, plus a calibration wizard, and is self-tuning which means anyone is able to set it up. There are known issues with the system such as the "high idle" but it is an easy fix. The Sniper EFI master kit contains the most complete EFI fuel system on the market. This has become a very popular upgrade on many of our engines. My short answer is no haha. Parts are just part of what we do. For those not wanting to deal with the potential quirks of a carburetor, this is the way to go. holley sniper efi self-tuning fuel injection system black satin finish part no. Sniper EFI four fuel injector kits can support up to 650 HP. The Holley Sniper EFI self-tuning fuel injection system delivers all the benefits — and none of the hassles. Fuel Injection SystemSniper EFI Self-Tuning Kit Sniper EFI Self-Tuning Kit; 4150 Flange Carburetor Replacement; Throttle Body Mounted ECU; Supports Up To 600hp/1200hp; 4 Wire Veh. I can't help but notice all the problems people are having with the new system, including myself. The sniper wiring harness it supplying the power source directly to it. Will include all my notes on troubleshooting and basic set up that I've gathered from the Holley forums. From street easy to full race – these new systems cover everything from simple throttle body systems all the way to the latest twin turbo or nitrous outlaw engines. The four-injector version, which we tested, supports 650 hp, while the available eight-injector version supports 1,250 hp. Was only installed for a few months then removed. Holley just brought EFI within range! Introducing Sniper EFI! It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. AOC details 'horrifying' conditions at Texas facility. Holley Sniper EFI Throttle Cable Bracket & Springs Installation Instructions Holley Sniper EFI Throttle Cable Bracket & Springs Installation Instructions. The FiTech ECU for Go EFI systems has a special driver circuit that will drive the fuel pump directly, which means that an external relay is not needed. I do want to let you know, your Sniper EFI system must be running hand-held firmware version 1. *Representative Image Only Sniper EFI Self-Tuning Black Ceramic TB Mounted ECU Fuel Injection System Kit Part No. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water/meth injection, speed inputs, fuel pump control, AC. Hi all, I put a holley sniper on Russtoy, my 69 Charger with a 512 stroker, hughes 232/236 cam, cast 452 ported heads, 727 trans, 2000 stall convert, 356 gears. Holley Dominator EFI Controller Holley Dominator Engine Management System. I am deciding between the MS3 Gold from EFI source, Holley HP and Haltech. Many other "plug and play" parts are available and more are coming. There are known issues with the system such as the "high idle" but it is an easy fix. – Anthony Coles, Holley Performance The aftermarket has seen a boom with the Coyote as well. EFI Fuel Tank System by Sniper®. Holley Sniper efi So I sent back the FAST and bought the Sniper mostly because the reviews were terrible and also tech support and customer service seems to be awful. They are $950, $1950 and $3K +. Hi all, I have recently purchased the Holley Sniper EFI kit, including the complete Hyperspark ignition system (distributor, coil, and C/D box). Pelican Technical Article: Electronic Fuel Injection (EFI) Troubleshooting Document #1. Taking off the RPMs climb really quick before clutch engages so you either squawk or take off quickly, shifting has to be done quickly as well, or RPMs drop. Holley Sniper TPS Reset – How To Reset Holley Sniper TPS. Can be installed with just 4 wiring connections (Batter +, Battery -, Switched Ignition & RPM). No problems running fine when removed just swapped setups so no longer need. This is a great time to visually inspect the overall Sniper EFI install. Also, the Holley Sniper EFI has been in development for a long time to compete with other bolt-on TBI systems. There are known issues with the system such as the "high idle" but it is an easy fix. Find helpful customer reviews and review ratings for Holley 550510K Sniper Efi Master Kit-Shiny at Amazon. EFI TROUBLESHOOTING CHART Based on possibly occurring problems (fuel injection system only) NOTE: This chart identifies only problems pertaining to the fuel injection system. But after turning the key to the run position, the LCD touch screen failed to power up, indicating I didn't wire the Sniper EFI properly. If they are Holley will not assist you with finding replacements. They sell a piece for the extension for about $13 if I remember. When I pull up to a light and stop the idle dips to around 500rpm then withing 10 seconds it will finally rebound to 750 where i have it set on the hand held. Taking off the RPMs climb really quick before clutch engages so you either squawk or take off quickly, shifting has to be done quickly as well, or RPMs drop. Holley just brought EFI within range! Introducing Sniper EFI! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Every part of the Holley Sniper EFI Systen installation is a breeze but a few folks are challenged to get the idle rpm set correctly. I can't help but notice all the problems people are having with the new system, including myself. 4 is an application by Holley. "The HyperSpark is made to be a direct plug-and-play to Sniper EFI units only," says Jeff Teel of Holley Performance Products. Really odd that holley is so far behind. It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for Full Size Jeeps, as well as nearly any carbureted vehicle. Holley continues to push the envelope of intake design with its latest offering. Just ask google and the internet will give it to you. All three units look very good and are all throttle body injection so easy to install and set up if youtube is anything to go by. 550-511 file photos. Over winter I am going to re-cam, probably to a Comp XR276HR which will match my setup more closely I believe and be easier for the EFI. Here we look at the Holley Sniper, FiTech Go Street EFI, and the FAST EZ-EFI. The thing with Holley though is when you talk to tech support they are inconsistent. I do think the holley might have a few extra points over the fitech in the same price point. holley sniper efi self-tuning fuel injection system black satin finish part no. Just had the Holley Sniper installed on my 78 Z28, 383, 5 Speed TKO and the drivability stinks. For more information please go to www. They are $950, $1950 and $3K +. If they are Holley will not assist you with finding replacements. Posted by 05/25/17 2 Comment(s) Holley Sniper EFI Instruction, In my experience the far majority of Sniper EFI customers never have a problem with radio frequency / electro-magnetic interference (RFI/EMI). Economically priced to save your hard earned money for other parts of your build; Holley Sniper EFI is a self-tuning, plug and play fuel injection system that takes all the trouble and guesswork out of your switch to modern electronic fuel injection. $1250 for Sniper kit with fuel system. After a few minor problems with the car itself and some minor tweaking , its a beast. Has anyone installed the Sniper EFI system on a vintage Mopar? Specifically wondering about how the fuel return was handled and if the pump was mounted in tank like Holley suggests or frame rail mounted. I finally pulled the trigger on the Holley Sniper EFI. HL550-511 In Stock Shipping : Australia Wide Call us on 1300 VPW VPW for International Rates Why choose us ?. 0 craze of the 1990s, Mustang fans can’t get enough of this engine. The Holley Sniper EFI self-tuning fuel injection system delivers all the benefits — and none of the hassles. 0 with no mention about the 2. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Put an end to cold start issues, hesitations, vapor lock,. – Anthony Coles, Holley Performance The aftermarket has seen a boom with the Coyote as well. Holley Sniper on blowthrough turbo car. Holley 550-510 Holley Sniper Efi Self-Tuning Kit Holley 550-510 Sniper EFI Kit Holley just brought EFI within range – introducing Sniper EFI ! It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride!. Sniper EFI Self-Tuning Kit. FiTech and HOLLEY sniper EFI kits If this is your first visit, be sure to check out the FAQ by clicking the link above. I am new to this site. I have a Sniper on my 401 and I helped 401jim put one on his 360 engine. Holley carburetors powered every Monster Energy NASCAR® Cup team and nearly every NHRA® Pro-Stock champion for four decades. Tech: Installing A Holley EFI Dual Sync Distributor By Kyle Kitchen October 20, 2016 When your classic ride is running an EFI conversion, upgrading the distributor for more precise spark timing or to handle higher engine speeds can be a little intimidating for some. Holley says the Sniper EFI will work on a spreadbore intake, but I still used a spacer/adapter. EFI TROUBLESHOOTING CHART Based on possibly occurring problems (fuel injection system only) NOTE: This chart identifies only problems pertaining to the fuel injection system. Thanks for the input. 1 or higher, to operate with the HyperSpark ignition. If they are Holley will not assist you with finding replacements. This is a great time to visually inspect the overall Sniper EFI install. Last year, just a few months after finishing my install of the high performance engine I'd had built, my '81 Bronco was rear ended and totaled. com after some research, I called up and chatted with the head guy there, Chris, for a good 30 minutes about what I wanted and what would be best. Are you looking for the perfect fuel pump kit to complement your new Holley Sniper or FiTech Throttle Body Fuel Injection System? Look no further! This kit contains absolutely everything you need to upgrade your carbureted fuel system to EFI in a safe and. I have a Sniper on my 401 and I helped 401jim put one on his 360 engine. By implementing ignition timing control through the Atomic EFI, the engine will have more precise control and an improved idle. Discussion in ' EFI Tuning Questions and Engine Management ' started by Wolverine r spec , Dec 3, 2017. – Anthony Coles, Holley Performance The aftermarket has seen a boom with the Coyote as well. 4 is an application by Holley. I recently bought a FiTech Go EFI fuel injection system for my big-block Chevelle. Re: Holley Sniper EFI I've been waiting on these to ship for over a year now, they finally started shipping late 2016 so now it's front and center on my list to do. This driver circuit allows both PWM control (pulse width modulated), and direct internal relay drive of the fuel pump. To deliver a fair and unbiased report on why the owner of this classic Bronco wanted to replace the Holley Sniper TBI unit with an Edelbrock Pro-Flo 4 EFI, we referred to both the owner of the vehicle as well as the builder, Gateway Bronco. Part 2 will go over what those new parts will be feeding. Holley Sniper EFI: A New Standard in Fuel Injection November 16, 2017 November 16, 2017 Hank O'Hop 0 Comments Classic Cars , EFI , Fuel Injection , Holley There's no doubt about it—electronic fuel injection (EFI) is the way to go. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro-Stock champion for four decades. Holley Performance 550-511 Sniper EFI Self-Tuning Kit. Holley says the Sniper EFI will work on a spreadbore intake, but I still used a spacer/adapter. Each tank is a direct fit for your application-no modifications necessary. Including a high-output HyperSpark CD ignition box, billet distributo Read More ». Seems like Fi Tech support can't keep up with the growth that they have had and figured Holley has been in the efi business longer. Please try again later. Proprietary parts - Injectors, TPS, Fuel pressure regu8lator ect. Taking off the RPMs climb really quick before clutch engages so you either squawk or take off quickly, shifting has to be done quickly as well, or RPMs drop. FiTech's only answer is that I must have a vacuum leak or a fuel pressure drop on tip-in which I don't. If you've read my build thread, you'll know I started off with the FAST XFI Street EFI system. I just ordered Master Kit today, Part#: SNE-550-511KItem: HOLLEY SNIPER EFI KIT. Actual appearance may vary. Unboxing and anticipated problems, but nothing big. Building a daily driver reliable fuel system to support EFI is a much bigger hassle than installing and setting up the injection unit itself. Get great deals on eBay!. Eliminate typical carburetor cold starting issues, hesitations, flooding and vapor lock. In order for it to work as designed the O2 sensor has to be installed in a dry exhaust system and needs to be placed 1-10in from the collector in the headers. I'm sick and tired of carb and carb related inconsistencies and V A P O R L O C K in the mountains. 0 craze of the 1990s, Mustang fans can’t get enough of this engine. It has been nothing but problems. I just wish that Holly would provide this piece with the kit to start sonce so many people experience it. (Words and photos by Mike Brooks) – Part 1 in this series of articles covered the install of the new fuel system in the truck. SKU: HLY550-516. That tells me the EFI was working just fine, but your cam selection doesn't match the compression ratio you are ruuning. Get yours online today and pick up in store. Holley finally has released Sniper EFI Software V1! Sniper EFI Software According to what is presently posted on this Holley support forum, the base Sniper EFI will not need a CAN USB adapter and will interface with a Windows PC by removing the SD card from the handheld display and use a card reader to open the configuration files. Re: HOLLEY SNIPER EFI TUNING tips, info sharing, ideas, settings, etc. Once I decide to EfI my 68 Shelby it was no turning back. $1250 for Sniper kit with fuel system. Find Holley Sniper EFI Self-Tuning Fuel Injection Systems 550-511 and get Free Shipping on Orders Over $99 at Summit Racing! Holley Sniper EFI self-tuning fuel injection systems from Holley deliver all the benefits—and none of the hassles. 0 A/F ratio to get it smooth. Add Sniper EFI systems and components to your arsenal today. Will include all my notes on troubleshooting and basic set up that I've gathered from the Holley forums. I used to run an 850 Holley. Holley sniper efi troubleshooting keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Holley sniper efi blew them out of the water and I have had zero problems or concerns with anything holley and they have an absolutely great efi kit if you buy one you will know why, it is worth it even if it was priced twice the amount as it is now. "The HyperSpark is made to be a direct plug-and-play to Sniper EFI units only," says Jeff Teel of Holley Performance Products. I am looking at some form of self learning system for my car and have looked at Holley Sniper EFI, Fast EZY efi 2. com, he wanted to offer a terminator package at a discount in place of the sniper, but apparently, Holley will not be delivering any of them until sometime in August. Holley: Sniper EFI HyperSpark Ignition System If you want to upgrade your ignition system due to a recent Sniper EFI installation, the HyperSpark ignition from Holley adds easy ignition timing control to nearly any Sniper EFI. As far as I can tell these are not off shelf parts. Actual appearance may vary. I am new to this site. This is a great time to visually inspect the overall Sniper EFI install. Holley asked me to connect the timing control in order to make sure it wasn't an ignition problem. 1 or higher, to operate with the HyperSpark ignition. They want you to send the whole thing back to them to "service " it. 55:1 gears in the 12-bolt. This driver circuit allows both PWM control (pulse width modulated), and direct internal relay drive of the fuel pump. Including a high-output HyperSpark CD ignition box, billet distributo Read More ». This feature is not available right now. The FiTech ECU for Go EFI systems has a special driver circuit that will drive the fuel pump directly, which means that an external relay is not needed. I was running a Demon 750 carburetor but I felt I took that as far as I could go. Part 2 will go over what those new parts will be feeding. Holley asked me to connect the timing control in order to make sure it wasn't an ignition problem. Unboxing and anticipated problems, but nothing big. Howell Engine Developments, Inc. Holley has been the undisputed leader in fuel systems for over 100 years. Every part of the Holley Sniper EFI Systen installation is a breeze but a few folks are challenged to get the idle rpm set correctly. Soon there will be a CAN bus connection that will allow Sniper to use many new Holley EFI gauges and displays. When the Holley Sniper EFI system was revealed at SEMA 2015, I knew I had to have it. As for Holley horror stories, you can find bad info on everything. The Holley Sniper EFI TPS is reset back to 0 by simply turning off the car.