Advertising . Not sure how well the sensor likes being that close to the port. Throttle body mounted ECU - no extra boxes to mount. #1. Some parts are not legal for use in California or other states with similar regulations. You are using an out of date browser. One of the most common causes of poor idle is improper O2 sensor placement or trying to run closed loop at idle . FWIW, I called Holley to confirm the part number and they say the Bosch part number if 17212 (also available on Amazon for $64.78). The Sniper will do that. 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. Visit their website for more details. 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.) Jan 20, 2019. Description. I will let you know what happens. KAYAK searches hundreds of travel sites to help you find and book the hotel deal at O2 Hotel Taipei Main Station that suits you best. 02/25/2020. This doesn't apply to race boats. 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. Add To Cart. Brand: Holley EFI Emission Code: 5: Material: . Mine is right where Steamers is, and works well with my AFI TBI. From there, the idea is that it will self-tune to the requirements of the engine. Part# 554-155. Thanks for that, Danny. Welcome to ClassicBroncos! The very front would be the safest place. Taking a look at the holley manual I am thinking about drilling and tapping the front exhaust port on the log for the O2 sensor. Q2. 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. Here's the pic of the location with my header. 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. It turns out that this is a common problem with the Sniper EFI install on vehicles with a manual transmission. Brand: Holley EFI Emission Code: 4 . 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. It appears that its a tuning issue. EFI Systems based on Holley's world-class Dominator and HP ECU's. Vega$69. You'll also notice that the firing order is 1-6-5-4-3-2. http://s621.photobucket.com/albums/tt291/Mark11530/?action=view¤t=MAH05771.mp4, http://www.holley.com/data/Products/Technical/199R10226.pdf. *Possible delays due to Covid-19 click for more information. Since the Sniper install, I encountered my second O2 sensor failure so I thought I would try the "Innovate Bung Extender" recommended by a few folks here. 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 . is donald smith still alive; julie grant court tv cheerleader Was told by holley tech support to make adjustments to the fuel prime percent and multiplier settings, played with those with no major improvement. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. I am a competent mechanic and I have checked all the usual suspect items. looking at doing the same. the motor has the following mods, Aluminum heads, Performer intake, Sniper and MSD ignition module. Introducing Sniper EFI Master Kits, with a Returnless Retrofit Fuel Module. A third option would be to run your EFI system without an O2 sensor at all. 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. 5. holley efi. Copyright 2022 Holley Performance Products, Inc. All right reserved. Warranty Information. You will still get some water on the engine side of the snails, mainly at low Rs. 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. So far so good. They are about 4 inches long, in-line between the log and manifold. JavaScript is disabled. 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. We may earn a small commission from affiliate links and paid advertisements. They have been working out well for a few years now. - You are currently viewing the forums as a GUEST. Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. 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? Car runs perfect . It just means that if you are thinking you'll install this, crank it, and pull away from the dock with complete success you might be in for some disappointment. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. I installed the adapter and elbow so it's at an angle above the entry point. All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. 74 FJ40 confined to the swamp. I want to register an account for free right now! 2023 Holley Performance Products, Inc. All Rights Reserved. ), 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 have not yet got it figured out. Systems that were already designed for marine efi. He also explains how to properly install them. Free ground shipping regardless of order size! Homemade body parts replace the originals as they rot away but it's a 40 on the inside. Master ASE tech since 91. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. What I think a lot of folks are missing is correct tuning of their carburetor engines Most inboard systems I worked on were intentionally set up to run rich with minimal timing (mostly to get through the warranty period). Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish. Thanks. Maybe my manifolds leaked the inside between the snail and the log?? So please, If you have problems registering or can't log into your account, please. I am interested in upgrading both engines with Pertronix Ignitor or Ignitor II ignition and the Holley Sniper EFI 2300 and the Howell EFI marine O2 sensor adapter. I'm having new headers with an O2 sensor bung installed in my car ('79 Vette) soon, to prepare for a Holley Sniper EFI TBI install this winter. Free ground shipping regardless of order size! My tune is coincidentally set at 11.5 desired afr, with the failed side as the leanest bank, but the ecu added 15% fuel anyways. Since your existing low-pressure fuel system is not going to work with the Sniper EFI System this puts you in the unenviable position of choosing between USCG compliance or EFI. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. Purely coincidence about the '2300' number. Anti-Seize pre-applied to sensor threads. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. 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. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity. Sniper EFI 4bbl Marine. 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. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. I found this in the instruction manual for the older commander 950 system. What exhausts are the best? To those who have installed the Sniper EFI units, please post up some photos of where you tapped the exhaust line to install the Oxygen Sensor's weld bung. 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. He knows his stuff, gets back quickly to you, etc. 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. I installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. I installed a holley sniper kit. On EFI systems such as Holley's Sniper, all of the EFI sensors (except for the O2 and coolant temperature sender) are mounted snuggly in the throttle body. Product Q&A . I put mine after the collector only because I have a new exhaust and muffler going in and Ill use a weld in bung and placement will be different. Option 1 is to purchase and install one of the Holley EFI Dual-Sync Distributors on your engine. No worse than taking the reading in the intake manifold cross over. When either of these operating temperature ranges is exceeded, the sensor can no longer be . This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right? Hooker BlackHeart Oxygen Sensor O2 Bung 2.25" Clamp-On Style, Hooker BlackHeart Oxygen Sensor O2 Bung 2.5" Clamp-On Style, Hooker BlackHeart Oxygen Sensor O2 Bung 3.0" Clamp-On Style, Holley Oxygen Sensor O2 Bung Weld-In Style. 534-199. Followed all the instructions to the letter. so simple check first, whats the fuel pressure? Running? Holley 554-100 NTK Wideband Oxygen Sensor. I recently installed the sniper setup on my stock 71 duster 340 4 speed. . If you find that please let us know. you don't want to read that loss. Conditions when closed loop o2 should be turned off. #1. :-), I started using OMC and Volvo Penta pumps for my conversion. My bet based on longer pump run, to make pressure, you have a leaking injector. Then dialed back the cranking fuel quite a bit and that seemed to help some, but still having ongoing issues. Part # HM206. They are the only ones got me a holley usb to can cable fast. Holley Sniper O2 sensor replacement. EFI Systems based on Holley's world-class Dominator and HP ECU's. Use a return fuel line. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. Powering the Sniper, There are three wires that need to be connected to power on the Sniper, Red and Black main power wires, these need to be run directly to the battery and have a solid connection. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. Thanks for the compliment--we look forward to your feedback! (probably with the edelbrock marine 2506 intake). Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Categories. You should then have at least 18-24" of pipe after the sensor. The spark must be manually tuned. Restore | Make | Philosophize | Eat | Drink | Be Happy | Let's Go Brandon! Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. If you are not running the latest software stop guessing and go download it. Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. The first option is to just buy the injector body and the controller with the wiring harness and sensors. 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. If it's working to prolong the life of the sensor in the AEM Wideband kit then there is no reason to believe it wouldn't work with any other sensor. Only show this user. 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. 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. Add to Cart . Bolt-on carburetor style EFI for your classic car or truck. 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. $108.95. Add to Cart . This completes the basic installation of the Holley Sniper EFI 4150 Super Sniper 1250/650 kit. Stay up to date with the latest releases, events, promotions and more. Anyone ever converted a 1987 3.7L 4cyl Mercruiser engine to EFI. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. I installed one also on mercruiser 260 hp. The in tank pump is quieter, will normally run cooler and should last longer. https://www.efisystempro.com/efi-pro-hangout/sniper-installation-tips-holley-tom-kise, https://www.efisystempro.com/efi-prng-engine-startup-sniper-terminator-x-stealth. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. 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. May God's grace bless you in the Lord Jesus Christ. I have searched thru the forum as much as I can, with not much luck. George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. 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). Holley Sniper - Oxygen Sensor Location Thread starter GA Architect; . Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. 10 min read Video. so far so good love the smooth power and easy starts. And who can blame them? Capability Range: Advanced Register now for free!) Seems to LEARN much faster than the Fitech did. As far as a sensor goes, absolutely nothing. Other countries likely have simmilar approval processes for marine engines. New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. I would back-burner the ignition control questions until you get the fuel injection working. Price Point: $$$. PS, Once someone has a good 270/350 tune, everyone can use it. View Holley Sniper EFI Self-Tuning Kit - Shiny Finish. Also, with Headers you loose 600 to 700 degrees between Head and bottom collector, you don't want to read that loss. 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. Holley EFI Oxygen Sensor. 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. Emissions. Any exhaust down at engine level or lower will definitely get at LEAST some steam. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. Is this a viable upgrade for my boat? Part Number: 510-554-155. Wideband Oxygen Sensor Extension Cable. Only a few hours on the motor but so far so good. Then if that doesn't work call the tech line they are great! I'm guessing by snail, that's another name for the riser? test the sensor.. for a basic pass/fail of the sensor. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. Good luck to all. The O2 sensor burned out immediately. CTS (Coolant Temperature Sensor) - Reads engine temperature. 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. Sniper EFI Releases new Stealth 4150 Models! 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)? Miami, FL. check out the. quick fuel. Next, the new unit was installed onto the manifold. On a side note: Im getting 4200 rpms at 5000 elevation with stock heads. I've installed several of these adaptive EFI's on cars with great success. Who knows. Joe, where did you end up installing the o2 sensor on your setup? I also capped off the regulated return line with a hose, clamps, and chamfering bit. 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. I received my replacement TPS and O2 sensor. I have a local customer with a pair of big blocks in his offshore boat that is eager to get started on this. Fuel economy went from 12.5 to 13.5 gph to 10 gph. Air-Fuel Ratio (AFR) - The most common reference term used for mixtures in internal combustion engines. To take advantage of all the site features, please take a moment to register. Thanks for the heads up. . I don't have enough experience with marine applications to know exactly what it will take to solve this. Sniper EFI Installation Guide. As a follow up, I ended up using an eBay type anti fouler elbow for the O2 sensor to try and get it out of the water in the manifolds. Specs. 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. 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. watch the values in the software for the o2.. once is is done "Heating" and starts to show AFR, wrap the rag round it. All sensors are tested to ensure they accurately report critical engine data to the . One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. What I don't want to do is spend more money on the headers than on the fuel injection upgrade and new propeller set. I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. The original Holley Sniper instructions are available on the Holley website if you have misplaced them. Everyone else was backordered several months. 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. The Sniper EFI throttle-body drops in place of your . That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. The light shines in the darkness, and the darkness has not overcome it. I had an injector fail after a month of running and called the tech line who helped me figure that out. While these base maps are generally quite good for cars they are going to be pretty far off in the case of marine applications. Hi all, i'm contemplating doing a sniper quadrajet swap onto my volvo penta 5.7 GL 2bbl holley motor in my 1997 cobalt 200 with the DP-S outdrive. 2014 FJ Cruiser - White - 4X4 - Loaded - . Thanks for the feedback on this adapter, Donald. Holley recommends a 3/8" fuel supply line. Is this a good upgrade? He had one there that was run on a dyno then the fuel map was set and shipped back. 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. 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. I'm using the NTK sensor. . I have not gone back in to try to fine tune them. The engine RPM when closed loop o2 will begin. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. In this case, the prime shot is good for cold, but too much for warm. I am happy with Holleys no hassle replacement of the parts. I have a 74 bronco, 302, mild cam. 2 Reviews. This was for MPFI. 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.). Much of the system is encased right inside the throttle bodyand that includes the ECU. There is no problem getting this tuned and then running open loop. $5 Off Your $100 Mobile App Purchase . Follow USCG rules about materials and fittings. Marc, you don't mention which system you installed but the Holley systems are fully configurable. so mine has been pretty good but 1 out 20 starts you can hear the fuel pump run longer then normal..when it does that it will light off then diebut if i put my foot to the floor it will start..still working on that 1..timing i am running 12 cranking.20 idle.40 cruze.35 wotstill playing with all of this..Mine is also a sniper stealth. Having the same problem with my sniper as well, intermittent hot (and cold) start issues. Sort. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? 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. Great Article. I tried holley tech support, no answer and put on hold for hours. 4. There can be leftover debris from manufacturing that have been washed down and are now clogging one. You must log in or register to reply here. It doesn't even mean that you can't do it. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. For gourmands, night markets not only offer scrumptious small . Affiliate. That sounds like one solution. 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. 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. I am a competent mechanic and I have checked all the usual suspect items. 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.

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