Systems that were already designed for marine efi. Covers, Boat Cover It would cost considerably more but a second option that would have added performance benefits would be to switch to a dry manifld such as the headers available from Custom Marine, Inc. NOTE: You will need to send us your ECU with thisquestionnairefor re-calibration. Covers, Boat Seat Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, oradded a supercharger? The Sniper will do that. Seats, Pontoon Boat Seats & Turning in the 13's you need to make sure your knock sensor is working. Is Holley working on a complete marine package or planning to in the future? That's right, no need for a separate nitrous controller! All Rights Reserved. Oars, Wakeboard, Wakesurf & Forums, Find Rated at an operating constant temperature of 230F and fully waterproof You now have the option to mount the ECM almost anywhere. I have installed the Holley hp efi MPFI on my twin inboard mercruiser 350ci 270 hp. Kits, Seadog Stainless Steel Cup Ventilation, Interior & Cabin Sorry for the late reply. 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. Hardware, Boat Seats by Add to Cart . Switches, Shore Power & AC Having selecting USCG-approved components, and sourced your O2 sensor adapter, there is but one more challenge--tuning. Returns must be shipped to:Michigan Motorz, LLC32333 Mally DriveMadison Heights, MI 48071(248) 524-9600. Put an end to cold start issues, hesitations, vapor lock, and flooding. Hardin Marine - EFI Upgrade Kits Be sure to wire your fuel pump in accordance with SAE J1171 which requires the fuel pump to be wired through the oil pressure sensor so it won't prime unless the engine is cranking. What I don't want to do is spend more money on the headers than on the fuel injection upgrade and new propeller set. Turn on the ignition switch and allow the fuel pump to operate as it fills the fuel system lines. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. Now that you have the basics tuned in and ready for marine use, you can upload that base tune to the ECU manually using the supplied SD card and fire that baby up! Restores, maintains & helps protect the catalytic converter, oxygen sensors, fuel injectors, and cylinder heads. Savers, Boat Trailer Guides & I strongly recommend EFI System Pro. Boats don't cruise at 60mph up and down hills. Anyone ever converted a 1987 3.7L 4cyl Mercruiser engine to EFI. The Catalytic Eliminator Computer (CEC) is designed specifically for marine engine application testing. Everything is included to completely plumb your fuel system including; 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. Simple Calibration Wizard (Answer a few questions about your engine, and it creates the base map, then starts tuning on its own!) make this system functional and reliable. The stage 1 maximizes the power output of the stock engine by running 91 octane or better vs the stock 87 octane, increasing the maximum spark advance, increased ignition dwell from the ignition coil and maximized air-fuel ratio. You are using an out of date browser. Had to source a manifold riser spacer from performance fuel injection ($80) to accommodate the O2 sensor, found a nice stainless return to tank fuel fill adapter from CP Performance ($50) to avoid removing or drilling into the fuel tank, and used an existing threaded plug for the Coolant Temp sensor. Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) Accessories, Electronic Navigation Covers, Boat Shrink Wrap Other than the constraints provided in the article above I see no reason why this wouldn't be a great upgrade. All returns must be made within 15 days of delivery to you. While these base maps are generally quite good for cars they are going to be pretty far off in the case of marine applications. So there is at least some probability of success. Guide, Boat If parts arrive damaged in shipment, it is the customer's responsibility to notify the carrier immediately and reject the damaged package. Kits, Seadog Stainless Steel Cup Biminis, View & Rings, Prop Nut Kits & Locate the engines electrical block at one side of the engine compartment. can i use efi off a truck or switch to another injection system. I ditched the finicky Quadrajet on my 5.7 for a Holley Sniper EFI kit. Cushions, Lexington Sorry for the late reply, Douglas. Thursday 9-5 I think installing a wide band O2 sensor in the manifold(s) is a great idea. 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. Precisely Adam. Q3. Dollies, SportsStuff Great Big Accessories, Big Jon For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. Deals, Paint & Maintenance Marc, you don't mention which system you installed but the Holley systems are fully configurable. If he doesn't show this will be closed as it's been idle for 6 months. Buyer is responsible for return shipping costs and for sufficiently packing and insuring returned items unless otherwise agreed upon. Self-tuning ECU means you dont have to be a computer/tuning wiz to have EFI! Boat, Boat Buyers Marine Battery Chargers, Shop approved), Engine wire harness with universal 10-pin plug, Dipstick tube, dipstick, and EZ oil drain hose, MPI diagnostic tool available from Diacom at an additional, discounted price -. Thinking about this I think this will work very fine! I have not had it on the dyno with the sniper, but would guess probably about 400 to 410 hp and well over 500 tq.I did use the holley pump that came with the sniper. Bolt-On EFI for your Holley's Dominator and If you're not running one (or if you are and the water has killed it) then it is not surprising that you are running rich. Sadly, no. Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Has anyone used any of these kits? K&N clamp-on style filter element and high velocity air inlet adapter which most of your engines power The ECU precisely controls fuel requirements, I have not gone back in to try to fine tune them. Add to . :-), I started using OMC and Volvo Penta pumps for my conversion. Pumps, Livewell Aerator Pumps Hardware, Boat Seat The conversion requires mechanical expertise, experience interpreting wiring diagrams and the EFI components you obtain at marine service centers based on the size of the engine. Buyer is responsible for return shipping costs and for sufficiently packing and insuring returned items unless otherwise agreed upon. High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays. I've been building a TBI system from GM parts to use on a 1987 Wellcraft with the Mercruiser 4 cylinder engine. Kits include a port-injection-specific Holley intake manifold, distributor, computer, fuel pump, wiring harness and MAP sensor, as well as the rail-mounted fuel injectors and pressure regulator. Parts, Inflatable Well an update on the Sniper install. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. The Right Fit, Shop By Allow approximately 4-7 days turn around time. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed. Fuel Injection System, Pro-Flo 4, Self-Learning, Sequential Multi-Port, Satin, 825 HP Max, 1965 and Later BB Chevy Large Oval Port, Kit Part Number: EDL-35840 ( 1 ) Estimated Ship Date: Monday 5/1/2023 Free Shipping $2,495.95 Add To Cart Compare Wish List FiTech Ultra Ram EFI 800 HP Self-Tuning Fuel Injection Systems 38302 & Accessories, Marine Electrical I do believe that the Holley EFI ECU's have the capability to be programmed to work in this application, but have not yet found anyone who has tackled this task and been fully successful.If you (or anyone else) does make some progress on this, please reply here and let us know what works. Terminal & All of necessary components to required to High Back Reclining Helm Seat, Cabin and Professionals. Multi-Port Fuel Injection Retrofit Systems | Hemmings Boat Gel Coat - Spectrum Color, Pumps and Yes, this is going to be an added expense, however, it will help guarantee your success. 4 3L Mercruiser Carb to EFI Conversion - YouTube This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. CREATE Yes! Downs, Couplers, Mounts, Combos, Fishing Tools & By bypassing the built in pressure regulator in the fuel module(allowing full flow and pressure), using 3/8 hard lines to/from the sniper to meet CG rules( no soft lines on the engine block)using the snipers fuel pressure regulator, This is as close as I can come to safe. 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? Accessories, Boat Lift Canopy Tubes, Shop Mercury Marine Mercruiser Quicksilver Mechanical Fuel Pump Assembly OEM 861677T $280.95 $10.00 shipping MERCRUISER 7.4 LITRE 454 Fuel Rail Assembly Harness Injectors Regulator 17098209 $388.00 $24.50 shipping or Best Offer MerCruiser 47587A2 53509 Thermostat Housing 120hp 140hp 165hp 3.0L 2.5L 1969-98 $70.00 $11.85 shipping Items under 75 pounds are sent via FedEx in Continental USA. Maintenance, Pumps and Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions! Handles, Life Jackets & All returns must have an RMA # and invoice #. I have a local customer with a pair of big blocks in his offshore boat that is eager to get started on this. Pumps, Livewell Aerator Pumps Parts, Rule 1500 GPH Automatic Returns must be shipped to:Michigan Motorz32333 Mally Drive Madison Heights, MI 48071. Fishing Lures, Fishing Rod Holders & - NO laptop required! & Reconnect the battery lead and the ground. he first ran it with the oxygen sensors disconnected and thought the dummy sensors would further help his fuel consumption, it didn't really do anything. Prime cannot be adjusted on this old unit. Now, Shop & Sonar, Trolling 80 lb/hr injectors (@ 43 PSI) Covers, Boat Wiring & CHEVROLET 4.3L/262 Fuel Injection Systems - Summit Racing For items received as described, a refund of the final invoice price (minus shipping and handling charges and a 15% restocking fee) will be issued. The new Optimum series also offers many new options to optimize your vehicles capabilities. 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). Upgrade to Sniper EFI and get the tactical accuracy of EFI today! Seats, Offshore Boat I'll let you know how it works out. All Packages over $175.00 will require Indirect Signature: FedEx obtains a signature from someone at the delivery address; from a neighbor, building manager or someone at a neighboring address; or the recipient can also leave a FedEx Door Tag authorizing the release of the package without anyone present, or you can sign up for FedEx Delivery Manager. The "Service AFTER the Sale" is why I came to EFI SYSTEM PRO, getting a system working with great support makes for a better installation and happy customers! You are using an out of date browser. Chevy Truck TBI To EFI Conversion - MotorTrend The engine floods and it is embarrassing when leaving a lock. 620-75305 "SS" Sport Series Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines . Howell indicates that this adapter was designed for the Chevy type Mercruiser manifold but that it should work on any similar marine wet manifold. approved), Hi and low-pressure electric fuel pumps (U.S.C.G. Manufacturer Part Number: 852956A1;Interchange Part Number: 17104288, 3855182; SET of TWO Factory Remanufactured TBI Fuel Injectors for MerCruiser 4.3L V6 - 305 5.0L & 350 5.7L ; . Ventilation, Interior & Cabin It turns out that the loading generated a propeller in the water is significantly different than wheels on pavement, so much so that the map has to be tuned differently. It's a compact HP pump and cooler assembly. Storage Intake Hardware. Designated trademarks and brands are the property of their respective owners. The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn! Starters, Marine Solar Power Hardware, Boat Capability Range: Advanced Had to source a manifold riser spacer from performance fuel injection ($80) to accommodate the O2 sensor, found a nice stainless return to tank fuel fill adapter from CP Performance ($50) to avoid removing or drilling into the fuel tank, and used an existing threaded plug for the Coolant Temp sensor. We have received many e-mails asking about marine application fuel injection systems. Marine - Holley For a better experience, please enable JavaScript in your browser before proceeding. I really dont want any issues on the whitewater lol XFI 2.0 Electronic Fuel Injection Kit by Fast. Anchor Box Anchors, Fishing Rod & Reel Starters, Marine Solar Power 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. Record actual static fuel pressure to later enter in the EFI parameters this allows the ECU to accurately calculate the injector pulse width. Remove the air cleaner/spark arrestor from the top of the carburetor. ), MerCruiser center-rise exhaustmanifolds with 4" risers, Throttle bracket, throttle clip, and quick-connect ball joint, 70 amp alternator, bracket, and tensioner (U.S.C.G. Axles, Boat Trailer Tie A team of marine electrical engineers created this easy to use testing tool to define failed secondary or post O2 sensors needed for replacement. 5.7L Complete Engine Package FUEL INJECTION (1987-Later MerCruiser My boat is still in winter storage. Under heavy load need to be in the 12's, If you look at the pictures in the link, any operation above 94kpa on my map is 12.5, Hi Nfowler, I am about to pull the trigger on the Sniper EFI Qjet conversion rather than troubleshoot another flooding carb.. Do you have an update on how the rest of your season went with the Sniper? Covers, Other Holley Super Sniper 1250 EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold. Step 2 Remove the air cleaner/spark arrestor from the top of the carburetor. Terminals, Marine Fuse Blocks & Drink Holders. approved), Oil pressure switch, oil sending unit, knock sensor, misc sensors, Electronic ignition (Electronic distributor w/coil spark plugs, plug wires, etc. Only 4 Wiring Connections Required! Caulking, Marine Engine Time or RPM based Timing Retard and much more! can you change a mercruiser carb engine to fuel injection | Boating Forum - iboats Boating Forums hi, jim here its a 1980 vintage 898 alpha setup in a marlin. & Circuit Includes complete fuel system consisting of; 20ft of 3/8 Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank! Manufacturer, Boat Tables & The reason I say this is that nowhere in this discussion is the fact that none of these systems are are handling the timing on the fly. looking at doing the same. 3L packaging - Treats up to 30 gallons of fuel. While the Sniper has an absolutely outstanding internal ECU, the current model does not offer any laptop programmability. Advanced boost control is available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time Same popular boost control offered in Holley HP and Dominator EFI systems!
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