We Test It: Holley's New Sniper EFI - MotorTrend Advanced throttle body injection systems capable of transmission control and more. For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. 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. 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. Did you use the Holley fuel pump and have you had any issues with it? Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. 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. . Visit their website for more details. Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Holley Sniper EFI Wideband Oxygen Sensor. Also some tips on preventing O2 sensor damage All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. My question is concerning what happens a year later, when I have a top-end swap . My boat is still in winter storage. And the relay and fuse were mounted along the firewall. - You are currently viewing the forums as a GUEST. Add to Cart . 2. Categories. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. 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. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. Full time feedback from the sensor is what the computer uses to refine the fuel table. We can hear the initial fuel spray into the body, but it appears that its not enough to start the engine while hot. so simple check first, whats the fuel pressure? I will keep the in-line pump for a spare. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. Jun 7, 2021. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Holley Sniper O2 sensor replacement. Part# 50-5009QFT. So please, If you have problems registering or can't log into your account, please. Maybe this one has a shorter cable? Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. Do you recommend in-tank or external fuel pump? Wideband Realities: The Truth About Oxygen Sensors - EngineLabs 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). so far so good love the smooth power and easy starts. The in tank pump is quieter, will normally run cooler and should last longer. functioning controller during engine operation. Look at the bottom.. It will crank and run great for 2-15 seconds then die. looking at doing the same. temporarily running without WBO2 sensor? - Holley If you've done some automotive fuel map tuning before, you can likely overcome this challenge. In a horizontal or if pointed upwards it can collect exhaust condensation liquids upon start up. What exhausts are the best? When problem-solving this type of issue, consider when and how you could use a work-around. -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? O2 Hotel Taipei Main Station - KAYAK I have a boat with twin 3.7 Mercruisers. Can anyone share their experiences with this type of setup? 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? Homemade body parts replace the originals as they rot away but it's a 40 on the inside. The boat underway acts very much like a water brake dyno I strongly believe that a well broken in engine in good condition can stand a much more critical tune w/o issues and deliver almost the same fuel economy as the proposed EFI conversion. 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. HP comes from torque and rpm and rpm breaks things and increases wear. WBO2 Sensor 17025 Bosch 554-155 Holley - EFISystemPro.com Even though you now have the USCG-approved Sniper EFI System as an option for your new EFI System you're not quite out of the woods yet. The light shines in the darkness, and the darkness has not overcome it. 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. A 90-degree V-6 has three shared crankpins set 120 degrees apart. Part # 554-155. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. It will not fit on round or oval risers without a suitable flat area. Fuel prices at the marina are usually about a dollar a gallon more than at the local Racetrac/Wawa/wherever, and even more if you wisely opt for ethanol-free fuel. 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. It does not work with the Sniper EFI oxygen sensor. Capability Range: Advanced For a better experience, please enable JavaScript in your browser before proceeding. New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. The World's largest An adapter harness is available to connect this distributor directly to the Sniper EFI throttle body. This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right? Holley 554-100 NTK Wideband Oxygen Sensor. 4. I've installed several of these adaptive EFI's on cars with great success. The new throttle response was significant,fuel saving and gave me a turn key cold start.Still I can't have an idle speed under load and a turn key warm start. Bolt-on carburetor style EFI for your classic car or truck. Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. Is Holley working on a complete marine package or planning to in the future? Wideband Oxygen Sensor Extension Cable. Ive got a set of bassett headers for a BBC, ill see if they can fit under the transom. In order to do this, it heavily relies on proper O2 sensor placement. 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. The adapter will be fastened in both metal parts so that no water will reach the O2 sensor. I'm 3" down from the bottom of the flange to center of bung. The truck started fine after install, and ran down the road ok. Currently has 2 bbl carburetor and mechanical distributor, mechanical fuel pump for 165hp. Staff Writer. 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. See Details. 534-199. 29. Sorry for the late reply. I have a 74 bronco, 302, mild cam. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. Fuel economy went from 12.5 to 13.5 gph to 10 gph. Initial Calibration in Basic Configuration. 2 Reviews. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. I did--- Save your money and piece a fuel it together. You should then have at least 18-24" of pipe after the sensor. JavaScript is disabled. I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. Purely coincidence about the '2300' number. - The sales brochure refers to Integrated Ignition Timing Control and Coil Driver. excessively rich mixtures), Mechanical shock (e.g. 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. Does an yone have a pic of the O2 sensor in their exhaust? Amazon.com: Holley EFI Wbo2 Sensor, Sniper Tbi : Automotive Had to replace the oxygen sensor on my car for the terminator x after the original one failed and this fixed all my problems. Capability Range: Advanced (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. You are using an out of date browser. Good luck! You have to angle it to help the throttle cable get around the booster. Install the throttle linkage to the Sniper EFI throttle body. Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas. I want to register an account for free right now! Some parts are not legal for use in California or other states with similar regulations. CTS (Coolant Temperature Sensor) - Reads engine temperature. However, there's a good chance you will want to add a wideband O2 sensor at some point, in order to give the MegaSquirt more tuning information. Please consult the Holley Sniper full manual and use this guide for supplemental clarification. Description. Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. This is great information that can only get you closer to an ideal solution. Sniper EFI 4500 Marine. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. Having selecting USCG-approved components, and sourced your O2 sensor adapter, there is but one more challenge--tuning. One workaround was to leave it in gear and slow to a stop and push the clutch as RPMs drop . . 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. Stock manifolds? While the Sniper has an absolutely outstanding internal ECU, the current model does not offer any laptop programmability. We use cookies to enhance your experience while using our website. Holley Sniper first start No o2 sensor - YouTube 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. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. As far as a sensor goes, absolutely nothing. . My bet based on longer pump run, to make pressure, you have a leaking injector. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. Thinking about this I think this will work very fine! I would prefer to run this brand new Holley EFI system in a closed loop, not set the fuel map, and use the O2 sensor as only a sensor. May 1, 2018 They want you to angle it to keep it from fouling. Newer ECMs have all the options to configure these functions. I installed the adapter and elbow so it's at an angle above the entry point. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. Has been since the 80's. Marine O2 Sensor Adapter Plate - Affordable Fuel Injection I really dont want any issues on the whitewater lol Yes, this is going to be an added expense, however, it will help guarantee your success. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. They are the only ones got me a holley usb to can cable fast. It works fine. It turns out that this is a common problem with the Sniper EFI install on vehicles with a manual transmission. 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. The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. Top 10 Sniper EFI Installation Tips from Holley's Tom Kise Joe, where did you end up installing the o2 sensor on your setup? 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. Only show this user. The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. Do you offer a USCG fuel pump kit? Capability Range: Advanced Price Point: $, Advanced throttle body injection systems capable of transmission control and more. Sniper throttle body linkage opens all four barrels evenly when you depress the throttle. I have installed the Holley hp efi MPFI on my twin inboard mercruiser 350ci 270 hp. pull the sensor out of the exhaust. Here's the pic of the location with my header. Add to Cart . Other than the constraints provided in the article above I see no reason why this wouldn't be a great upgrade. Throttle body mounted ECU - no extra boxes to mount. If the indicator reads "LOW Err" double check the connection to the CTS. George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. Wondering how you are progressing with this? Yellow Init In First shown for an instant when the system is powered on. Thanks for that, Danny. Holley recommends a 3/8" fuel supply line. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey! Note, that is not a crack in the exhaust manifold, just a shadow from a casting flaw. Also, with Headers you loose 600 to 700 degrees between Head and bottom collector, you don't want to read that loss. To simplify . They have been working out well for a few years now. I found this in the instruction manual for the older commander 950 system. Sort. The ones in the Bosch box come without warranty. GA - As close to the lake as I can afford A powerful, MICRO BlueTooth in dash audio solution! Part# 550-511. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. Find a lower price anywhere and we'll beat it by 5%! You must log in or register to reply here. I've seen O2 sensors in water jacketed headers that have worked fine for years. Maybe going all the way to the front is the way to go? Menu. Waiting for spring to put back together. Part# 534-199. 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. Maybe my manifolds leaked the inside between the snail and the log?? I've dunked mine lots of times. Holley Sniper EFI Self-Tuning Kit - Shiny Finish, Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish, Holley Sniper EFI Self-Tuning Kit - Classic Gold Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Shiny Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Black Ceramic Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Classic Gold Finish. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. There can be leftover debris from manufacturing that have been washed down and are now clogging one.