Parts, Boat Tubing & So i was looking for a way to gain some range on my 33' Aquasport offshore fishing boat. Initially, we were hoping that a hole saw would do the trick, but we misjudged just how thick our fuel tank really was. #1 Getting ready to install Holley Sniper EFI on a carbureted Mercruiser 165. I have a local customer with a pair of big blocks in his offshore boat that is eager to get started on this. 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. Mercruiser 165 Sniper EFI Install - iboats Boating Forums Sniper Diecast 340 LPH In-Tank RetroFit Fuel Module w/Return, How To Install A Sniper EFI Set-Up On A Supercharged Barracuda, Part Two, How To Install A Sniper EFI Fuel Pump Module Kit Into A Shallow Fuel Tank, LS Fest West 2023: LS Swapped 1967 Twin Turbo Slingshot Dragster, This 1964 Ford Galaxie Restomod Packs A High-Voltage Punch. Fast shipping, great tech support. Match made in Heaven, if you ask us! Dont buy your EFI anywhere else. This allowed us to easily slip the pump into the hose end. Then having an experienced tech from a local dyno speed shop ride in the boat as you run the power up and down, making notes. Products, Carbon Monoxide & Easy installation and as promoted easy tune! This sniper is awesome. Four Wires to EFI With Sniper and HyperSpark Master Kits! Acessories, Fish Cleaning When I went to Holley HP, I found an adapter by Innovate that is designed to draw air out the exhaust stream and away to the O2 sensor. Sniper EFI 4BBL - Holley Maintenance, Boat Cleaners & Rafts, Paddle I myself will convert my 2 302's (Volvo Penta 5.0 l AQ231A) from carbs to EFI; I must find out everything before I start work on the engines, then I am satisfied to start. Think your going to need to drill and tap for 1/4 NPT in thermostat housing or head next to housing. However, the bit just wouldnt cut through the tank! As far as spark control, the Sniper will let you tune those 4 points, nothing else will. Anyone ever converted a 1987 3.7L 4cyl Mercruiser engine to EFI. Marine Battery Chargers, Shop Holley carburetors operate at a range of 5.5 to 7.5 psi of fuel pressure and use a 40 micron filter. Holleys Super Sniper Stealth can support 1,250 horsepower and 21.5psi of boost so we teamed up with ProCharger superchargers to put one to the test on Westech Performances engine dyno. In fact, what if your fuel tank is just a cylinder? Only a few hours on the motor but so far so good. This solved all my problems. If you find that please let us know. Stay up to date with the latest releases, events, promotions and more. Covers, Boat Cover We ordered a hole saw and went to town. 650 Naturally Aspirated. I have about 30 hrs on the unit and it just keeps getting smoother with every hr of run time. Installed on the newly built 460 in my 1978 F150. Looks and runs great. Rails, Marine Tools & Tool Prime cannot be adjusted on this old unit. The blower should run on single digit boost. The new throttle response was significant,fuel saving and gave me a turn key cold start.Still I can't have an idle speed under load and a turn key warm start. Is this a viable upgrade for my boat? Supplies, Boston Whaler, 1972-1993, Add To Cart. This setup allows you to install a high-pressure fuel pump into virtually any fuel tank, including the one thats in our T-bucket. ). Some parts are not legal for use in California or other states with similar regulations. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. Deals, Camping & RV My question is where do I install the coolant sensor? The throttle body kit and fuel delivery kit have quality parts. One thing the old 460 is not afraid of, is gas. Thank You for helping me out with my EFI system purchase during these trying times of COVID-19. The Super Sniper throttle body comes machined for the draw-through style boost reference port. -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? One of the impressive features of the Retrofit module are the five aluminum arms that hold the pump in place when installed. Installing the Holley Sniper EFI Kit - RacingJunk News A little shaky at first although the system learned quickly with excellent improvement. How To Install a Holley Super Sniper EFI - YouTube What Is It? Honda 5hp Outboard, Boat 53 subscribers Subscribe 142 Share 15K views 1 year ago Holley Sniper EFI install on a GM 350 on an old boat! Great Product! The goal here is to trim up the supply and return hoses on the module along with the hanger itself, so the pump sits at the bottom of the tank. I have two Mildly built 454s going in my 12 meter and was pondering on doing efi. USCG approval is certainly worth careful consideration, as being on a boat that catches on fire is even more serious than being in a car that catches on fire. OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service. This instruction manual must be read and fully understood before beginning installation. Join the Holley Family. Ropes, Boat $17.90. Holley Sniper EFI install and dyno test on a 440 - MotorTrend It does this every time..when you start a warmed up engine, its too rich and starts poorly without throttle. Self-tuning ECU means you dont have to be a computer/tuning wiz to have EFI! Do you also recognize that the O2 sensor that is required for closed-loop operation will not survive in the "wet" manifold used by most marine engines, and that to install a device to protect the O2 sensor from this moisture may require the removal, machining, and replacement of the exhaust manifold? We also slid the foam gasket over the entire assembly. If not, don't install it! Bangshift.com: The Caddy Powered C10 Gets A Holley Sniper EFI, RacingJunk.com: Installing Holley's Sniper EFI System, FullSizeBronco.com: Holley Sniper EFI Install, Compatible w/ Holley EFI, Sniper EFI, and Terminator X Software, Replacement Sniper and Terminator X O2 Sensor, Earls - 1/8" NPT in Hex As always, your results may vary and batteries not included. You really want a bigger engine. Fenders, Boat Trailer I did not buy my holley sniper from EFI Pro Systems. EricTheCarGuy 1.73M subscribers Subscribe 216K views 3 years ago #FairmontProject In this video I install a Holley Super Sniper EFI system on my #FairmontProject. With the pump officially in the tank, we needed to plumb everything up. The engines are rated at 170 hp each. Also any other guidance to installation of EFI appreciated. . Grills, Boat Drink Check out part number 550-870, How To Build A Custom Timing Table - Sniper EFI, Sniper EFI Initial Startup and Troubleshooting, How To Properly Place and Install an O2 Sensor, How to install the easy to use Sniper EFI Hyper Spark Ignition System, How To Take A Data Log From Your Sniper EFI System. No insult intended to any of the techseach one seemed more than willing to make sure my problem was solved and that I was satisfied. Sniper EFI throttle bodies require 58-60 psi of fuel pressure and a 10 micron filter. Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Jacks, Boat Trailer Brakes & Financing, Iboats However, you cant argue with the power gains the late-model GM engine provides. Trying to gather all the info and parts before getting into it .. don't want his boat dry for too long. What is the lowest I could set engine idle RPM? Holley was good about getting me an O2 sensor that failed, and the other part that failed was the included, no-name Chinese fuel pump relay, which I replaced with a better quality unit. By Tom B on February 15, 2018 | Verified Owner. I replaced an outdated TBI system. Transom Easy install, fired right up and idled. Harware, Marine Nuts, Bolts, & Furniture, Boat Seat Pedestals & Sniper EFI is economically priced so you can have all the benefits of Fuel Injection and still have money to finish or upgrade the rest of your ride! AN If so, what else do I need? Absolutely love it night and day difference, such easy installation and no troubles turned it on and drove havent adjusted anything. But you have to get it tuned. Now the engine runs perfectly well. Anchor Box Anchors, Fishing Rod & Reel I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? The engine currently has a Edelbrock Performer 460 intake and a 750 QFT Holley carb, jetted with an 86 front & 96 rear. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable 500 Naturally Aspirated. They're $900 on eBay. Sniper Kit-https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_4bbl_tbi_kits/sniper_4bbl_tbi_master_kits_with_fuel_system/parts/550. Perfect for street rods, hot rods, muscle cars, off-roaders and just about any carbureted vehicle, Sniper EFI will put an end to cold start issues, hesitations, vapor lock and flooding. I installed it without O2 sensor, adjust on the fly. HP comes from torque and rpm and rpm breaks things and increases wear. Protection, Dock Storage & Learn how to download and update your Sniper EFI software. The Blazer starts in seconds and no more raw fuel burning the eyes. By Trent M on February 26, 2018 | Verified Owner. Anybody got a good 270hp 350 tune yet?I installed sniper efi on my boat runs good but feel like the wot should be better need to get the sniper controlling spark is my thoughts the old thunderbolt is either not great or timing wasn't right when I bought the boat but she runs great I just think this engine has more in it then I'm getting out of it at this time any tuning and timing advice would be great considering I'm awesome with carb n hei diet but new to efi and boat timing curve but not an idiot so I say. Holley Performance Products has written this manual for the installation of the Sniper EFI TBI fuel injection system. Will I be able to control my ignition timing with the Sniper? You must log in or register to reply here. In theory, a sniper unit could function below 100rpm. This basic manual contains the information necessary for the installation of the throttle body, wiring, and sensors. Boat, Boat Buyers today! Galley, Barbeque The other thing I want to overcome is the fuel return line; my harbor master says that I can connect my fuel return line to my CAV (lucas) gasoline filter, it has 4 connection, now only 2 are used. Don't recall ever seeing a single thread about them around here. The Sniper EFI system will be offered in a 4 and 8 injector option. Stay up to date with the latest releases, events, promotions and more. The engine is a turbocharged 363. Sniper EFI 4 Barrel Fuel Injection Conversion - w/ Handheld Sniper EFI Monitor. Once you have those points set, the rest of the map doesn't really matter, just make it look smooth/pretty and everything will be fine. Yes! Find a lower price anywhere and we'll beat it by 5%! Good luck to all. Can I run the Holley regulator/filter P/N 12-876 with this sniper system? Unorthodox, yes. Wells, Toilet & Waste Copyright 2019 IBOATS. Trailer Winches, Shop Tubes, Shop Insurance, Boat Is Holley working on a complete marine package or planning to in the future? Are you holding your RPMs back with the MSD for some reason? Go to the web site and it will explain the installation it is very simple and works well.As for the rpm you are comparing to completely different animals (pumps). Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. It currently has a 5 degree spacer to level the carb. WARNING! I've seen the auto versions, have the marine been around as well? Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. A third option would be to run your EFI system without an O2 sensor at all. So there is at least some probability of success. Getting ready to install Holley Sniper EFI on a carbureted Mercruiser 165. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Covers, Boat Seat Boats don't cruise at 60mph up and down hills. Replaced the original sequential system with a 302 Boss upgrade. We ordered up a Holley Sniper Retrofit 340 LPH Fuel Module with return capability (p/n 19-350). Yes, this is an old thread, but it's an old unit. 2023 Holley Performance Products, Inc. All Rights Reserved. Deals, Dealer For a better experience, please enable JavaScript in your browser before proceeding. PDF Holley Sniper EFI FUEL INJECTION INSTALLATION MANUAL I have purchased a CP Performance exhaust riser to allow proper fit of the O2 sensor.
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