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It's a compact HP pump and cooler assembly. Wideband Oxygen Sensor Extension Cable. It should be pretty straight forward what each of these values do. Sort. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. Follow USCG rules about materials and fittings. Was in marine engineering for years. Price Point: $$$. Depending on how fast you want one, there are plenty out there: The Cross ref numbers on the Holley forums and the Net is a Bosch 17025. No worse than taking the reading in the intake manifold cross over. Why? There are five significant plug connections to make from the throttle body: Plug into the oxygen sensor. If there's anyone willing to read a bit and offer advice about what to do when doing a top-end swap (when you may be in a scenario with a new top-end that's the EFI isn't calibrated for AND you can't have an WBO2 sensor connected), please let me know. The fuel pump question is the tough one. As always, your results may vary and batteries not included. Add to Cart . The ones in the Bosch box come without warranty. There can be leftover debris from manufacturing that have been washed down and are now clogging one. If you call, they usually let you put in your name and they get back to you. I will be starting mine up this month, I hope it goes well, good luck to you. This is great information that can only get you closer to an ideal solution. Only show this user. 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. The Sniper EFI throttle-body drops in place of your . The new Exhaust manifolds will have wideband O2 bungs for tuning. Product Q&A . Then operate open loop with a fuel map\Timing curve.I am interested in the capabilities of the Sniper product (4 injector) in a Marine application.. Joe, where did you end up installing the o2 sensor on your setup? Most of you only need to tune 4 points, idling around the marina, part throttle - pulling the rope tight, 1/2-3/4 throttle - cruise, and YeeHaa - WOT. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 I installed a holley sniper kit. so simple check first, whats the fuel pressure? In this case, the prime shot is good for cold, but too much for warm. With over the transoms you might get away with it if the water is introduced at the very very end, and the O2 is mounted right at the log. Perfectly Taipei - 25 Must-See City Highlights | Taipei Travel Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Yes! Holley recommends a 3/8" fuel supply line. They have mods that help. Capability Range: Advanced Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Also some tips on preventing O2 sensor damage Got a picture? I have not yet got it figured out. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. If this is a first time effort, find a tuner in your area with marine experience. Finally, do you also recognize that the self-tuning feature of the Sniper EFI may not result in an acceptable configuration for your boat and, as such, may require you to seek professional tuning? Prime cannot be adjusted on this old unit. Staff Writer. You should then have at least 18-24" of pipe after the sensor. On a side note: Im getting 4200 rpms at 5000 elevation with stock heads. Troubleshooting Holley Sniper that hesitates on acceleration It has about 18 hrs to date and is working great. THen you have to determine if you want 02 readings from one cylinder, or in the case you just mentioned mostly one cylinder, average of 4 cylinders on one bank or the other, or average of all 8 cylinders. . but I'm finding when running engines with holley sniper kits the the engines are very eratic ,the air fuel numbers are always changing drastically from one pull to . While this is extremely unlikely if you are having immediate, back-to-back O2 sensor failures you should make the effort to rule this out. I would back-burner the ignition control questions until you get the fuel injection working. Initial Calibration in Basic Configuration. Register now for free!) I have searched thru the forum as much as I can, with not much luck. A replacement clamp on would be an easy change out. The truck started fine after install, and ran down the road ok. After some time, the truck will not start after it comes to operating temperature. It's hallmark is its simplicity--but in this case it is also it's shortcoming. Add to Cart . turn on the ignition.but do not start the engine. Howell indicates that this adapter was designed for the Chevy type Mercruiser manifold but that it should work on any similar marine wet manifold. Add to Cart . The clamp-on that came with mine wasnt a good fit on my 2" pipe. Phil is right. Attempted to make a parts run in my 1990 Third gen Chevy Camaro with a small block chevy 350 with flowmaster mufflers.I believed the issue in this video to b. My question is concerning what happens a year later, when I have a top-end swap . I really dont want any issues on the whitewater lol Is this a viable upgrade for my boat? Everyone raving about customer service is telling the truth! Previously, none of Holley's throttle body injection (TBI) systems, such as the Terminator EFI were USCG approved (even though the HP and Dominaor ECU's themselves are.) Is this a good upgrade? Items 1 - 21 of 21 Items. Everyone else was backordered several months. I will let you know what happens. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle, By Corey A on June 4, 2021 | Verified Owner. Emissions. He knows his stuff, gets back quickly to you, etc. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. I stopped by Bergeron on my way back to the lake, and he said they have never found a good way to run O2 sensors in a marine exhaust. By Joshua C on August 10, 2021 | Verified Owner, Worked right out of the box. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . With a bad TPS you will have to manually prime to try and get it . Douglas Cline. But for just over $10 and two simple configuration changes you can switch to a progressive linkage that opens only the two primary barrels at first and then brings in the secondary barrels at a later point. I thought about adding some sort of extra protection but never did. I was mocking it up at the time. Super helpful and knowledgeable. Running? The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. Capability Range: Advanced I am considering the Daytona Sensors Ignition module. Also in Tools, Shop Equipment & Chemicals, Cataclean - Fuel and Exhaust System Cleaner, Cataclean Diesel - Fuel and Exhaust System Cleaner, Distribution Blocks, Filters, Adapters and Fittings, Microswitch and Solenoid Mounting Brackets, Holley EFI CAN to USB Dongle - Communication Cable, Hooker BlackHeart Oxygen Sensor O2 Bung 2.5" Clamp-On Style, Holley EFI Terminator X Wideband Adapter Harness, Earl's Oxygen Sensor Weld Fitting (Weld Bung) - Steel. We also use content and scripts from third parties that may use tracking technologies. Wideband Oxygen Sensor Extension Cable. I have not gone back in to try to fine tune them. Waiting for spring to put back together. But you still risk a little water running back at low Rs. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. What exhausts are the best? holley sniper efi Holley Sniper EFI Self-Tuning Master Kit - Black Ceramic Finish $1,475.95 Part# 550-511K holley efi 100 PSI Stainless Pressure Sensor $155.95 Part# 554-102 Are you waiting to convert your carbureted vehicle to Sniper EFI, but don't like the idea of mounting an external fuel pump? EFI is the wave of the future. 10 min read. I upgraded from terminator x Maxx to dominator.. bought a 2nd o2 sensor kit with Bosch sensor and used an off the shelf Bosch I had been using with terminator. Aug 17, 2013. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. Amazon.com: Holley EFI Wbo2 Sensor, Sniper Tbi : Automotive Taipei has dozens of world-class restaurants where gourmets can sample the most authentic Chinese cuisines. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? The Holley Sniper EFI Quadrajet is a self-contained throttle-body injection system that's a direct replacement for spreadbore Quadrajet carburetors found on many classic GM vehicles. It looks like another season has come and passed by without the answer you wanted on this.I am impressed that you made the leap into marine fuel injection but you have experienced the same problem that everyone else who has tried this has faced. #1. Systems that were already designed for marine efi. (probably with the edelbrock marine 2506 intake). It may not be enough to cause problems with the way the engine runs aor even make into the cylinders, but it is enough of a mist to take out a O2 sensor. Part# 554-155. holley efi. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Once the tune is complete, the O2 sensor can be defeated or . John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity. Sensors that are installed in an exhaust must be connected to a properly Find a lower price anywhere and we'll beat it by 5%! 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. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. From there, the idea is that it will self-tune to the requirements of the engine. Oxygen sensor: It's perfectly OK to share narrow band oxygen sensors with the stock ECU. A forum community dedicated to performance boat owners and enthusiasts. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. One example of a direction could be an adjustable timed delay-on injector-power relay in the injector power feed wire, delaying 1-second after key-on or whatever is necessary to bypass the prime shot time, only. Found out that it was due to rfi/emi. A third option would be to run your EFI system without an O2 sensor at all. I've seen O2 sensors in water jacketed headers that have worked fine for years.