Mine is right where Steamers is, and works well with my AFI TBI. When buying the Holley Sniper EFI kit, you've got two basic options. A 90-degree V-6 has three shared crankpins set 120 degrees apart. 29. May 1, 2018 They want you to angle it to keep it from fouling. Stock manifolds? Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. Pay close attention to the instructions on O2 sensor placement. Seems to have more low end tq and is much smoother power through out the rpm range. As far as a sensor goes, absolutely nothing. The sniper fit perfectly on the intake. Can anyone share their experiences with this type of setup? 10 min read. Thinking about this I think this will work very fine! Yeah, it may sound hokey to some, but is just one option to solve the issue where you are and with what you have. So there is at least some probability of success. Sorry for the late reply. The adapter does require the removal of the manifold and some machining but it allows the O2 sensor to be placed into the exhaust flow but protects it from the water exiting the block. Holley Sniper EFI Oxygen Sensors 554-155 It will flood itself out and won't start back, just crank and crank. I'm using the NTK sensor. To simplify . I am a competent mechanic and I have checked all the usual suspect items. I have searched thru the forum as much as I can, with not much luck. holley efi. For now I have a genuine bosch O2 and Standard Automotive TPS installed. I also capped off the regulated return line with a hose, clamps, and chamfering bit. An update from Al:After installing them I used the auto tune program on the Holly HP V4 software and they are working great. For gourmands, night markets not only offer scrumptious small . It could be an instant fix. The adapter plate installs in between the exhaust manifold and the riser/elbow allowing for the water jackets to still be in place and an o2 sensor to be installed in the still dry exhaust gasses. Add To Cart. What I installed on the motors was the Holley HP 19lb Holley Injectors the Holley 522-198 duel sync distributors with the MSD Digital 6A and the MSD Blaster 2 coils. I really dont want any issues on the whitewater lol so far so good love the smooth power and easy starts. Ref: https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/I heard of the new Sniper EFI from some chatter on OffshoreOnly.com. With the sniper as long as you locate the o2 sensor where it gets good feedback and stays dry long enough to get a good tune you could lock it so even if the o2s get wet it still runs good. The spark must be manually tuned. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. Wiring the Holley Sniper EFI system is equally easy. It works fine. I have not yet got it figured out. 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. Then dialed back the cranking fuel quite a bit and that seemed to help some, but still having ongoing issues. I wanted to let you all know, I have modified a mercruiser Cool Fuel Gen 3 module(mounted on the engine) to provide fuel to a sniper. Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery. Copyright 2022 Holley Performance Products, Inc. All right reserved. Sorry for the late reply, Douglas. Thanks for the heads up. For a better experience, please enable JavaScript in your browser before proceeding. As always, your results may vary and batteries not included. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. In the event you decided earlier that you are going with the Sniper EFI System you will not have the requisite tuning capability by simply using the included handheld tuner. Did a test startup on my new sniper by running the power wire to battery + and not using the o2 sensor.I also capped off the regulated return line with a hose, clamps, and chamfering bit.In the settings I chose closed loop disabled (set to open loop) and also set learn mode to disabled. If you let it cool down again, does it start up fine? Do you understand that no USCG-approved aftermarket EFI fuel system (including fuel pump, lines, filters, adapters, and hose ends) exists, that installing unapproved components on a boat will make the boat out-of-compliance with USCG regulation and could result in financial loss and legal liability (and that you release us from any liability by proceeding)? . Currently has 2 bbl carburetor and mechanical distributor, mechanical fuel pump for 165hp. Make sure to put anti seize on the threads. George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. Conditions when closed loop o2 should be turned off. Everyone else was backordered several months. No matter what I do, it will not start. Are you running the entire system? Staff Writer. The following vehicles are considered Racing Use Only Vehicles: Holley is the new standard in EFI! This free oxygen is picked up by the O 2 sensor and determined to be indicative of a lean AFR condition when, in reality, the engine could potentially be running slightly rich. Install the throttle linkage to the Sniper EFI throttle body. I recognize that it would be an absolutely tremendous investment, but based on the overwhelming response we get to this post I am pretty confident that the market is there. YES! What I don't want to do is spend more money on the headers than on the fuel injection upgrade and new propeller set. All times are GMT-6. p.s. the Hamilton 212 pump is maxed out at about 4600 rpms, however it will provide about 10x the thrust that the berkly it is not as fast but haul much more load and work way better in white water. Newer ECMs have all the options to configure these functions. ), https://www.ebay.com/sch/i.html?_froensor&_sacat=0, https://www.amazon.com/Bosch-Automot1296929&sr=8-3, https://www.efisystempro.com/wbo2-seer-tbi-554-155, https://forums.holley.com/showthread2927#post82927. I will change and be using an in-tank pump when I install the new 120 gallon tank this winter. One comes in the form of a Marine O2 Sensor Adapter from the folks at Howell EFI. New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. You shouldn't feel too bad about that lack of knowledge, because many boat owners either don't realize that the moisture present in their wet exhaust manifold will kill the wideband O2 sensor required by an EFI system. Fine tuned the timing to 12-15 degrees. Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. Will I be able to run both systems off of one fuel pump? The Sniper EFI throttle-body drops in place of your . EFI System Pro had everything I needed for my EFI upgrade. Thanks guys. Most of Holley's EFI systems provide a Setup Wizard that builds a base configuration file that allows you to start the engine and operate the vehicle. Search for O2 Hotel Taipei Main Station discounts in Taipei City with KAYAK. If you've done some automotive fuel map tuning before, you can likely overcome this challenge. Sniper EFI Quadrajet Marine. This Video Shows Ideal O2 Sensor Placement! Purely coincidence about the '2300' number. Did you use the Holley fuel pump and have you had any issues with it? Advertising . So I bought the progressive linkage but you then have . replaced my original terminator x sensor that was mounted in an exhaust that took on some water and killed the original sensor. This is great information that can only get you closer to an ideal solution. Followed all the instructions to the letter. the motor has the following mods, Aluminum heads, Performer intake, Sniper and MSD ignition module. Holley Sniper EFI Wideband Oxygen Sensor. : For registered members this ad will NOT show. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. I'm about to embark on the same type of project. MAP Sensors. Yellow Cold! I hope that the next F/2F header is more O2 sensor friendly. Capability Range: Advanced Then if that doesn't work call the tech line they are great! The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. 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. running holley sniper without o2 sensorplymouth township mi police scanner. Hello Chris,Ontario's boating season is about to launch for another year.Do you have any good news to add to your above article, any new marine friendly TBI products?In '08,I installed a Holley 21-700 TBI with the o2 mounted in the manifold to Holly specs. Everything about the fuel prime shot can be adjusted. 2. On my system, I machined in the O2 sensor right between the snail and the manifold of a . Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. I do agree if he can get it tuned prior to fouling he can lock that tune and run in open loop. . I want to register an account for free right now! Still trying to find more info on electronic conversion, only found Pertronix replacement for points so far.. What TBI, fuel pump, sensors and ECM computer are you using? Great Article. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. away. *Possible delays due to Covid-19 click for more information. I have searched thru the forum as much as I can, with not much luck. Fuel economy went from 12.5 to 13.5 gph to 10 gph. 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. So far so good. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. Don't know about HP increase, with the QFT 750 it would turn a 212/4.0 combo to about 3950 to 4000, the Sniper turns it to 4000 to 4100. It needs the tip pointed down at least 10 degrees from horizontal and at least 15 degrees from vertical I prefer about a 45 degree angle from horizontal. From there, the idea is that it will self-tune to the requirements of the engine. I'll let you know how it works out. Holley EFI has the solutions you need to get your project up and running better than ever! - The sales brochure refers to Integrated Ignition Timing Control and Coil Driver. It flows 850 cfm and can support up to 650 horsepower. This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues. Sep 14, 2021. The engines are rated at 170 hp each. We may earn a small commission from affiliate links and paid advertisements. 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. What you are able to accomplish with a Sniper is done exclusively through the setup wizard application on the 3.5-inch handheld.The Temrinator is designed to be set up with it's own setup wizard on the same 3.5-inch handheld display--but since it has a stand-alone ECU, it can also be fully programmed via the Holley laptop software. $5 Off Your $100 Mobile App Purchase . Thanks for the feedback on this adapter, Donald. I am considering the Daytona Sensors Ignition module. Thanks for the compliment--we look forward to your feedback! I'm guessing by snail, that's another name for the riser? Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Any exhaust down at engine level or lower will definitely get at LEAST some steam. I will let you know what happens. Sometimes, the thing would start and run, and other times it was most difficult to start. It is better to remain silent and be thought a fool than to open one's mouth and remove all doubt. Mark Twain, The goal in life: To die young as late as possible. See Details. Holley sent him a new one for free. O2 Sensor Mounting: The O2 needs to be mounted 6-8" after the merge in the header collector. Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. I had the pink ecu signal wire connected to a bullet connector on the passenger side . If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. Using the correct length carb stud and nuts, tighten the Sniper EFI throttle body down progressively in a "criss-cross" pattern (60-80 in.lbs.). 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. 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. The O2 sensor burned out immediately. Register now for free! It may not display this or other websites correctly. :-), I started using OMC and Volvo Penta pumps for my conversion. . Systems that were already designed for marine efi. But you still risk a little water running back at low Rs. Or maybe I could just use a piece of spare/junk exhaust tubing, and bolt it to the manifolds and add a weldless O2 bung to it. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Got a picture? Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. The in tank pump is quieter, will normally run cooler and should last longer. (If I am incorrect I heartily invite your comment at the bottom of this article!) This step is only for those installing their Super Sniper EFI on top of a draw-through or Roots-style blower. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. It is the ratio between the mass of air and the mass of fuel in the air-fuel mix at any given moment. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. JavaScript is disabled. 02/25/2020. Get fast, Free Standard Shipping on orders over Summit Racing Equipment from $99 -- no shipping, handling, or rural fees! I didn't read all this, but yes, the EFI system can be run without a WBO2 sensor. According to AEM Electronics, a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: Additionally, if an Sniper or Terminator X EFI System has repeated O2 sensor failures and none of the above-listed suggestions seem likely then contact Holley and arrange to have the unit tested. 4. $108.95. Find a lower price anywhere and we'll beat it by 5%! If you find that please let us know. Adam. i thought about it, but after $3400 on an EFI alone and an entirely new rigged boat Im having a hard time forking out another 2000 for an exhaust when I may just do an open loop My buddy machined up a set of spacers I sketched out for him. 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. PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. Description. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. so simple check first, whats the fuel pressure? (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). Right now I'm just using the AEM Wideband sensor to monitor Air/Fuel ratio but hope to use it in an EFI system soon. 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.) Oops, after that it cranked right up.Idle was set to 950rpm so after the vid was cut off I lowered it to 820rpm and it was purring like a kitten.EFI for dummies. To take advantage of all the site features, please take a moment to register. Capability Range: Professional I took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. turn on the ignition.but do not start the engine. I thought about adding some sort of extra protection but never did. What motor is this on? Add to Cart . #1. The Sniper EFI could very well be one of the easiest to set-up fuel injections systems ever. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Replacement Sniper and Terminator X O2 Sensor, This part is legal for sale or use on Racing Use Only Vehicles. B/c what it sometimes perceives as a lean spike is actually raw fuel with no oxygen. Yes, this is going to be an added expense, however, it will help guarantee your success. Staff Writer. Running? Is Holley working on a complete marine package or planning to in the future? Why? Have you visually verified that all your injectors are spraying? Holley EFI. Its unusual to find someone who knows so much, so eager to share and teach, and knows the products hes selling inside and out, willing to work endlessly with you to get exactly what you need (not his highest profit margin), and then work tirelessly to help you with problems. I thought the clamp on style mount was a good idea in case the threads got buggered up when a sensor change might occur, and the threads are rusted up by then. I have about 30 hrs on the unit and it just keeps getting smoother with every hr of run time. That is defacto step one in trouble shooting fuel injection systems. Is this a good upgrade? It appears that its a tuning issue. Have to replace head gasket. Super helpful and knowledgeable. Had to replace the oxygen sensor on my car for the terminator x after the original one failed and this fixed all my problems. I tried holley tech support, no answer and put on hold for hours. Holley recommends a 3/8" fuel supply line. Capability Range: Advanced 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. Homemade body parts replace the originals as they rot away but it's a 40 on the inside. Some parts are not legal for use in California or other states with similar regulations. Holley EFI Oxygen Sensor. It does not look like anything particularly superior in concept. 2 Reviews. Joe, where did you end up installing the o2 sensor on your setup? I just installed a Sniper on a 67 GTO and it was pretty straightforward, the end result was a much better starting/smother running car, than can adapt to elevation changes better, But we also installed the Holley Dual sync distributor for a complete system that adjusts timing as well. He had one there that was run on a dyno then the fuel map was set and shipped back. If you call, they usually let you put in your name and they get back to you. 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. An O2 sensor is used when converting an engine to fuel injection and wanting to move from an "open loop" system to a "closed loop" system. But this also makes me wonder what you did for the O2 sensor. Will I be able to control my ignition timing with the Sniper? There are five significant plug connections to make from the throttle body: Plug into the oxygen sensor. In order to do this, it heavily relies on proper O2 sensor placement. Your BluePrint Engine will be equipped with a Holley model 550-510, or 550-511 (identical except for finish color) on 4150 flanged intake manifolds. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. Part# 550-511. - You are currently viewing the forums as a GUEST. Everyone raving about customer service is telling the truth! You have to one big hole in the riser, then you reach the cooling water, and one little hole in the next part of metal: now you reach the exhaust gasses. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. EFI EFI kit electronic fuel injection. 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. This runs in the area of $1000 and has everything you need for a basic install on almost any vehicle equipped with a four barrel carb. I just discovered that was the case with my Fitech. Anti-Seize pre-applied to sensor threads. Yes, this is an old thread, but it's an old unit. . Only a few hours on the motor but so far so good. As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. 2023 Holley Performance Products, Inc. All Rights Reserved. When the Sniper EFI System received USCG approval at the end of 2018 this presented some hope for boat owners. If I am reading your post correctly you are using two separate o2 sensors when using headers ? Replaced O2 sensor but continued to have AFR issues running too rich. The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. I'm 3" down from the bottom of the flange to center of bung. Seemed to be getting too much fuel on hot starts and flooding out, could get it to go by putting it to the floor while cranking as Action mentioned. All sensors are tested to ensure they accurately report critical engine data to the . Car runs perfect . Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. The Fora platform includes forum software by XenForo. Plug-And-Play Compatible with Holley Sniper EFI System, Only for applications that use a Bosch LSU 4.9 0 258 017 025 (17025) Wideband O2 Sensor, Particulates, carbon (e.g. I only have a stick welder and didn't trust myself on the thin pipe so I brazed it in. You are using an out of date browser. Here's the pic of the location with my header. He had one there that was run on a dyno then the fuel map was set and shipped back. This doesn't apply to race boats. Then if you are do you just wire the o2 sensors in parallel or do these EFI kits have inputs for more than one sensor. But it is going to be a little tricky. It will not fit on round or oval risers without a suitable flat area. Late to the party but here's where mine are installed. OT pipes may be out of the question, but with the water dumps put in at the transom, ala Gil or Rewarder OT pipes, you could get dry readings with bungs a little above where they bolt onto the logs, I would think. Not always the case with a boat. I will get a new 02 sensor before I swap back to the orange box. functioning controller during engine operation. This is made by Innovate, the guy that runs the Holley EFI forum HIGHLY recomends AND uses them himself, I use them, my o2 on my wideband Innovate, kept going bad, a 4.2 Bosch o2, put this on both my Holley HP NTK sensor & the wide band, been 2 years now & lots of driving, all good, Heat-Sink Bung Extender (HBX-1) - P/N: 37290 The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. Much of the system is encased right inside the throttle bodyand that includes the ECU. Replaced and gapped to .45 all spark plugs. You have to angle it to help the throttle cable get around the booster. 02 sensors are very heat sensitive, and can detect an exhaust pulsation in a single Header tube, that's why we always wanted to position the sensor into at least 2 opposite firing tubes we running Headers. Holley Oxygen Sensor O2 Bung Weld-In Style; Larger Image. CUSTOM ART FOR CUSTOM NEEDS. I've seen O2 sensors in water jacketed headers that have worked fine for years. Menu. Vega$69. I am just now ready to do the tuning this weekend. Full time feedback from the sensor is what the computer uses to refine the fuel table. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. Yes! The Holley Sniper system sells for $999.95, installs in under 2 hours, and requires only an O2 sensor, a temp sensor (both included), an electric return-style fuel pump, and four-wires to connect.. Quote Reply Topic: Holley Sniper Posted: Jan/05/2022 at 2:01pm . These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. It only runs rich on start up for a second due to the prime, after start it runs great. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. 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. Given the traditionally poor fuel economy of carbureted marine engines, we feel your pain. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. Anything else is going to be a frustrating recipe for for failure. 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. They have been working out well for a few years now. . Bolt on 4150 Flange Carburetor Replacement. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. If you're thinking that you've read everything above and are ready to toss the carb on your marine engine then take this handy quiz to make sure! The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. Do you recommend in-tank or external fuel pump? I will be starting mine up this month, I hope it goes well, good luck to you. Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas.