YES! "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. Installing MegaSquirt in Parallel With the Stock ECU If you find that please let us know. I have a 74 bronco, 302, mild cam. In Stock. Holley Sniper - Oxygen Sensor Location Thread starter GA Architect; . 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. Replacement Sniper and Terminator X O2 Sensor. For a better experience, please enable JavaScript in your browser before proceeding. - The sales brochure refers to Integrated Ignition Timing Control and Coil Driver. 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. Add To Cart. Full time feedback from the sensor is what the computer uses to refine the fuel table. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Holley EFI requires several pressure inputs in order to run an engine. 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. Holley EFI Oxygen Sensor. The target A/F value based on load or MAF cfm, and engine speed. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. 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. He had one there that was run on a dyno then the fuel map was set and shipped back. 92 YJ 4.0, AX-15 5spd, np231, dana 30 front, dana 35 rear. It's fast, simple and absolutely free. . Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. 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. you don't want to read that loss. My first install was on a stock manifold and I installed it in about the same spot Steamer (above) did, except 180 degrees the other way, facing towards the front of the vehicle. Stay up to date with the latest releases, events, promotions and more. Advertising . 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 spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. 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? Much of the system is encased right inside the throttle bodyand that includes the ECU. Marc, you don't mention which system you installed but the Holley systems are fully configurable. EFI EFI kit electronic fuel injection. Register now for free!) Follow USCG rules about materials and fittings. Holley EFI Oxygen Sensor. http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to
1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. Add to Cart . HP comes from torque and rpm and rpm breaks things and increases wear. AFR was 19 area. See Details. Idle and off-idle performance (particularly as the engine goes into gear.) 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. He knows his stuff, gets back quickly to you, etc. functioning controller during engine operation. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. . I've dunked mine lots of times. 10 min read Video. What motor is this on? The O2 sensor burned out immediately. So there is at least some probability of success. I have a 74 bronco, 302, mild cam. After discussing it in this thread and talking with Holley's tech support, I decided . Not always the case with a boat. 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)? Have you visually verified that all your injectors are spraying? If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. . Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. Sorry for the late reply. 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 oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. 5. I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. If you've done some automotive fuel map tuning before, you can likely overcome this challenge. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Did you use the Holley fuel pump and have you had any issues with it? Price Point: $, Advanced throttle body injection systems capable of transmission control and more. This requires removing the plug with a breaker bar, and using a 1/2 NPT to 3/8 NPT adapter to mount the Sniper sensor. 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. 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. The Tech Tips and discussions are also great! Customer Rating: 4.3 out of 5 stars: 4.5 out of 5 stars: Other than the constraints provided in the article above I see no reason why this wouldn't be a great upgrade. Doesn't look like it will have an O2 sensor. I want to register an account for free right now! Sensors that are installed in an exhaust must be connected to a properly functioning controller during engine operation 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. I hope that the next F/2F header is more O2 sensor friendly. The engine floods and it is embarrassing when leaving a lock. I was mocking it up at the time. 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. Capability Range: Advanced Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Note the temperature sensor mounted on the back of the driver side head in the above photo. I had a blue wire coming out of the firewall that met this need, but it was already hooked-up to the + side of the coil and the Duraspark box. I have searched thru the forum as much as I can, with not much luck. excessively rich mixtures), Mechanical shock (e.g. I will let you know what happens. Sniper EFI 4bbl Marine. It may not display this or other websites correctly. I'm looking for some more practical and scenario-specific advice; that's one small piece of it. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Replaced O2 sensor but continued to have AFR issues running too rich. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. Could show a lean condition when in fact it really isn't. Capability Range: Moderate While the Sniper has an absolutely outstanding internal ECU, the current model does not offer any laptop programmability. Copyright 2022 Holley Performance Products, Inc. All right reserved. Anti-Seize pre-applied to sensor threads. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. Replacement Sniper and Terminator X O2 Sensor, This part is legal for sale or use on Racing Use Only Vehicles. That's great--we look forward to your results! This is the 02 sensor adapter I used. It has about 18 hrs to date and is working great. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. I was thinking aluminum heads would run it up closer to 5,000 rpm. Thanks guys. 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. EFI EFI kit electronic fuel injection. Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. 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. PS, Once someone has a good 270/350 tune, everyone can use it. Holley EFI 534-199 Wideband Oxygen Sensor Extension Cable It may not display this or other websites correctly. Will I be able to run both systems off of one fuel pump? We Test It: Holley's New Sniper EFI - MotorTrend The ones in the Bosch box come without warranty. I will keep the replacements as spares. 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. I had the pink ecu signal wire connected to a bullet connector on the passenger side . I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. quick fuel. If you let it cool down again, does it start up fine? I don't have enough experience with marine applications to know exactly what it will take to solve this. O2 sensor failure on a Holley Sniper EFI - YouTube The engines are rated at 170 hp each. It should be pretty straight forward what each of these values do. Yellow Init In First shown for an instant when the system is powered on. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! 100% identical. Brand: Holley EFI Emission Code: 4 . Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. No prime, but a second later it's ready to crank 'normally'. The O2 sensor burned out immediately. This step is only for those installing their Super Sniper EFI on top of a draw-through or Roots-style blower. Super helpful and knowledgeable. I'm using the NTK sensor. Plug into the coolant temperature sensor. 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). suspect bad o2 sensor with Holley efi | Yellow Bullet Forums This was for MPFI. Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. 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. 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. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. Emissions. While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. Vega$69. 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. Part # 554-155. This combines the Sniper EFI Self Learning Throttle Body, with an easy to install In-Tank Retrofit Returnless Module, 20 ft of Earl's Vapor Guard Fuel Hose, and the required fittings. Bolt-on carburetor style EFI for your classic car or truck. Holley Sniper EFI Wideband Oxygen Sensor Part Number: 510-554-155 Click image to zoom $125.99 More than 10 available Lowest Price Guarantee Sniper EFI Wideband Oxygen Sensor Replacement Part for Holley Sniper EFI and Terminator X Systems Bosch LSU 4.9 See more product details Free Shipping - Ships Today QTY Add To Cart Add to Wish List The Sniper needs a "clean" 12V wire that is hot in Start and Run. #3. Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas. 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. Yes, this is going to be an added expense, however, it will help guarantee your success. 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. Holley recommends a 3/8" fuel supply line. The test run was great, they have never run so well even when they were new with carbs. However, advanced tuning software is available for the Sniper EFI System that allow them to be tuned by a competent professional with experience tuning marine applications. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. Holley Sniper Efi - Mean Chicken Jet Boat Forum The sniper fit perfectly on the intake. 2023 Holley Performance Products, Inc. All Rights Reserved. Part# 554-155. holley efi. EFI Swap | Shamrock Boat Owners' Club This page was generated at 08:35 AM. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. I installed a holley sniper kit. Holley Sniper EFI Returnless Master Kit - Black Ceramic (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). Sent unit back to Holley. Wideband Realities: The Truth About Oxygen Sensors - EngineLabs Fuel economy went from 12.5 to 13.5 gph to 10 gph. Anyone ever converted a 1987 3.7L 4cyl Mercruiser engine to EFI. There are five significant plug connections to make from the throttle body: Plug into the oxygen sensor. Maybe this one has a shorter cable? Part # HM206. For gourmands, night markets not only offer scrumptious small . Each engine has the Holley marine 2 barrel carburetor. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Note, that is not a crack in the exhaust manifold, just a shadow from a casting flaw. Do you offer a USCG fuel pump kit? Spray a rag down pretty good with brake cleaner. On my system, I machined in the O2 sensor right between the snail and the manifold of a . 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? 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. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. I tried holley tech support, no answer and put on hold for hours. 29. 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.. It will not fit on round or oval risers without a suitable flat area. Whether you're engine swapping your classic car or need to manage 4000 horsepower in your twin-turbocharged drag radial race car, Holley EFI has the solutions you need to get your project up and running better than ever! But this also makes me wonder what you did for the O2 sensor. Next, the new unit was installed onto the manifold. Holley Sniper EFI System is Easy, Budget-Friendly Path to Fuel If this is a first time effort, find a tuner in your area with marine experience. Prime cannot be adjusted on this old unit. I have about 30 hrs on the unit and it just keeps getting smoother with every hr of run time. In the end I ended up using a Fuel Control cell made by Pleasure Craft Marine for their 351W engines. Converting Marine Engines to EFI | EFI Pro Hangout | General Studies Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. My bet based on longer pump run, to make pressure, you have a leaking injector. $132.95. The new Exhaust manifolds will have wideband O2 bungs for tuning. My boat is still in winter storage. It will flood itself out and won't start back, just crank and crank. All of the wiring begins at the throttle body and connects outward from there. Add To Cart. Sort. Staff Writer. The wide band O2 sensor is required for initial running and calibration. 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. Jun 7, 2021. Also, with Headers you loose 600 to 700 degrees between Head and bottom collector, you don't want to read that loss. 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. No worse than taking the reading in the intake manifold cross over. Sensors: Fitting: Threaded O2 . 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 really dont want any issues on the whitewater lol (REGISTERED USERS DO NOT SEE THIS POST/AD! 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. It doesn't even mean that you can't do it. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. turn on the ignition.but do not start the engine. 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. Thanks for that, Danny. But you still risk a little water running back at low Rs. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. The World's largest
This motor would probably turn the berk to 6 grand and blow it out from a stop.Motor dyno'd on a carb @389 hp @ 4700rpm and 497 tq @3500. 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. And it is timing that is equally critical to best performance and fuel economy. Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . Find a lower price anywhere and we'll beat it by 5%! These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. Everything about the fuel prime shot can be adjusted. I had an injector fail after a month of running and called the tech line who helped me figure that out. Currently has 2 bbl carburetor and mechanical distributor, mechanical fuel pump for 165hp. Runs like a champ now. Holley Sniper EFI Wideband Oxygen Sensor. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. QFI-500 Oxygen Sensor. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. Car runs perfect . He also explains how to properly install them. I found this in the instruction manual for the older commander 950 system. Bolt-on carburetor style EFI for your classic car or truck. Holley EFI. I am looking for a TBI with full sensors, mainly atmospheric for Sept and Oct and a Idle Air sensor for warm starts.I welcome your thoughts.Regards, Maybe my manifolds leaked the inside between the snail and the log?? looking at doing the same. Found out that it was due to rfi/emi. Capability Range: Professional I will be starting mine up this month, I hope it goes well, good luck to you. The problem occurs when an excessive amount of oxygen makes its way from the intake port directly into the exhaust at idle and low engine speeds because of overlap. I'm guessing by snail, that's another name for the riser? EFI Systems based on Holley's world-class Dominator and HP ECU's. You must log in or register to reply here. 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. The problem is with the Holley computer when you turn on the keyit squirts a prime for a split second. In this case, the prime shot is good for cold, but too much for warm. Given the traditionally poor fuel economy of carbureted marine engines, we feel your pain. Having selecting USCG-approved components, and sourced your O2 sensor adapter, there is but one more challenge--tuning. It is possible for the ECU to have an internal failure that can kill O2 sensors. To close this one out, below is a photo of where I installed the O2 bung. 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. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . 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. Mike. Warranty Information. Thanks for the compliment--we look forward to your feedback! So please, If you have problems registering or can't log into your account, please. GA - As close to the lake as I can afford A powerful, MICRO BlueTooth in dash audio solution! The in tank pump is quieter, will normally run cooler and should last longer. Are you running the entire system? Find a lower price anywhere and we'll beat it by 5%! so far so good love the smooth power and easy starts. I have not yet got it figured out. In the case of the car, you can generally get out and walk (run?) This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. As far as packaging goes, one comes in a Bosch box, the other in a Holley package. Does an yone have a pic of the O2 sensor in their exhaust? Holley's self learning system is a blessing and a curse. Was in marine engineering for years. . Wideband Oxygen Sensor Extension Cable. Bolt-on carburetor style EFI for your classic car or truck. Homemade body parts replace the originals as they rot away but it's a 40 on the inside. The first option is to just buy the injector body and the controller with the wiring harness and sensors.