Purely coincidence about the '2300' number. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. I will be calling around to see if I can find someone to help that has experience. Holley EFI Oxygen Sensor. 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. I want to register an account for free right now! Look at the bottom.. ), 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. Price Point: $$$. O2 Sensor in a boat exhaust | Performance Boats Forum 02/25/2020. (If I am incorrect I heartily invite your comment at the bottom of this article!) Holley EFI requires several pressure inputs in order to run an engine. 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. You should then have at least 18-24" of pipe after the sensor. 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. All of the wiring begins at the throttle body and connects outward from there. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. The Sniper EFI throttle-body drops in place of your . Installing Holley's Sniper EFI Quadrajet System on a 1970 Corvette 92 YJ 4.0, AX-15 5spd, np231, dana 30 front, dana 35 rear. We Test It: Holley's New Sniper EFI - MotorTrend Put an end to cold start issues, hesitations, vapor . This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. Note, that is not a crack in the exhaust manifold, just a shadow from a casting flaw. He also explains how to properly install them. The engine RPM when closed loop o2 will begin. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. You have to angle it to help the throttle cable get around the booster. O2 sensor placement is critical for getting your engine to read the oxygen in the exhaust correctly and can directly impact the performance of your new EFI installation. Full product line and accessories at excellent pricing. This was for MPFI. Introducing Sniper EFI Master Kits, with a Returnless Retrofit Fuel Module. Then turn the engine off and "lock in" the tune in a non-feedback loop mode, and quickly remove the headers and wash them off to prevent damage and then swap to the manifolds, but that would honestly be a huge PITA. Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas. I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. Also, with Headers you loose 600 to 700 degrees between Head and bottom collector, you don't want to read that loss. So please, If you have problems registering or can't log into your account, please. Holley Sniper Efi - Mean Chicken Jet Boat Forum Air-Fuel Ratio (AFR) - The most common reference term used for mixtures in internal combustion engines. Holley Sniper EFI System is Easy, Budget-Friendly Path to Fuel 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? Distributor and ignition box? Aug 17, 2013. My Lightnings have a bung welded through the water and into the dry exhaust area at the collector. Capability Range: Moderate 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 Installation Supplement Please note, a Holley Sniper instruction manual, as well as some small parts that come with the . As far as spark control, the Sniper will let you tune those 4 points, nothing else will. Fine tuned the timing to 12-15 degrees. Mine is right where Steamers is, and works well with my AFI TBI. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle, By Corey A on June 4, 2021 | Verified Owner. It does not look like anything particularly superior in concept. Categories. the engine not running. Sadly, no. Sensors: Fitting: Threaded O2 . Holley sniper help!!!! | ClassicBroncos.com Forum - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? Restore or update your Holley Sniper EFI System with this WBO2 Sensor 17025 Bosch 554-155 Holley. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. . For now I have a genuine bosch O2 and Standard Automotive TPS installed. After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. JavaScript is disabled. Make sure to put anti seize on the threads. What is your fuel pressure at the carb during crank? Holley Sniper O2 sensor replacement - Club Cobra Has been since the 80's. I have also picked up another .5 gallons per hr to about 9.25 gph. 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. Vega$69. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. Restore | Make | Philosophize | Eat | Drink | Be Happy | Let's Go Brandon! Got a picture? The O2 sensor burned out immediately. *Possible delays due to Covid-19 click for more information. I installed it without O2 sensor, adjust on the fly. If I am reading your post correctly you are using two separate o2 sensors when using headers ? so simple check first, whats the fuel pressure? Description. Customer Rating: 4.3 out of 5 stars: 4.5 out of 5 stars: There are drawbacks to that (as your tuner can explain in more detail) but it is doable, provided the system is correctly tuned initially. Register now for free! Are you running the entire system? I've got the Howell EFI adapter installed in the riser of some standard Inboard Manifolds and it works great. Warranty Information. 10 min read Video. Sort. Followed all the instructions to the letter. Sniper EFI Releases new Stealth 4150 Models! temporarily running without WBO2 sensor? - Holley Part# 554-155. holley efi. : For registered members this ad will NOT show. 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, 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've installed several of these adaptive EFI's on cars with great success. I think I could run more boost but it's a real hand full right now. An adapter harness is available to connect this distributor directly to the Sniper EFI throttle body. 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. #3. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). Still needs a EFI pump and return line. Precisely Adam. Specs. I want to remove the old fuel injected Mercruiser factory EFI on both engines because they have begun to be troublesome. The Fora platform includes forum software by XenForo. I'm about to embark on the same type of project. Holley EFI 554-155 Holley EFI Oxygen Sensor Bolt on 4150 Flange Carburetor Replacement. What exhausts are the best? But MAP sensors are very easy to physically implement and are inexpensive. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. I will keep the replacements as spares. The O2 sensor burned out immediately. I'm 3" down from the bottom of the flange to center of bung. No matter what I do, it will not start. Ran about 5 seconds and died. Free ground shipping regardless of order size! Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. The included fuel system places a 340LPH fuel pump in the tank, which can easily be . 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. They have mods that help. - You are currently viewing the forums as a GUEST. The sniper fit perfectly on the intake. Replaced and gapped to .45 all spark plugs. I had the pink ecu signal wire connected to a bullet connector on the passenger side . This doesn't apply to race boats. Install the throttle linkage to the Sniper EFI throttle body. 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 took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. Seems to have more low end tq and is much smoother power through out the rpm range. Much of the system is encased right inside the throttle bodyand that includes the ECU. 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. Only a few hours on the motor but so far so good. Stay up to date with the latest releases, events, promotions and more. 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. Add to Cart . Sep 14, 2021. Part# 554-155. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. Aftermarket headers are pretty much the only safe way to run an O2 sensor. Also in Tools, Shop Equipment & Chemicals, Cataclean - Fuel and Exhaust System Cleaner, Cataclean Diesel - Fuel and Exhaust System Cleaner, Distribution Blocks, Filters, Adapters and Fittings, Microswitch and Solenoid Mounting Brackets, Holley EFI CAN to USB Dongle - Communication Cable, Hooker BlackHeart Oxygen Sensor O2 Bung 2.5" Clamp-On Style, Holley EFI Terminator X Wideband Adapter Harness, Earl's Oxygen Sensor Weld Fitting (Weld Bung) - Steel. Do you recommend in-tank or external fuel pump? This page was generated at 08:35 AM. But you have to get it tuned. Mike. Car runs perfect . 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. Bolt-on carburetor style EFI for your classic car or truck. Some logs have water up to just short of the port. 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. Replacement Sniper and Terminator X O2 Sensor. Thanks again for writing! EFI EFI kit electronic fuel injection. 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. Welcome to Club Cobra! If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. Visit their website for more details. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. The wide band O2 sensor is required for initial running and calibration. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. About your only location is in that short area from the log to the port face. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Sniper throttle body linkage opens all four barrels evenly when you depress the throttle. Yellow Init In First shown for an instant when the system is powered on. Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. It doesn't even mean that you can't do it. 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. Capability Range: Professional I tried holley tech support, no answer and put on hold for hours. Register now for free!) Any exhaust down at engine level or lower will definitely get at LEAST some steam. It's a compact HP pump and cooler assembly. 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. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Has anyone run an O2 sensor in an EFI on a marine engine? When problem-solving this type of issue, consider when and how you could use a work-around. Idle and off-idle performance (particularly as the engine goes into gear.) I am happy with Holleys no hassle replacement of the parts. If you have long tube headers, mount the sensor approximately 6-10" after the collector. It will flood itself out and won't start back, just crank and crank. Ive got a set of bassett headers for a BBC, ill see if they can fit under the transom. i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. EFI is the wave of the future. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. Part Number: 510-554-155. Bolt-on carburetor style EFI for your classic car or truck. I had an injector fail after a month of running and called the tech line who helped me figure that out. Is this a good upgrade? You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. suspect bad o2 sensor with Holley efi | Yellow Bullet Forums I know from some of the other posts, there have been WBO2 sensor issues. Note the temperature sensor mounted on the back of the driver side head in the above photo. Part # HM206. Systems that were already designed for marine efi. The target A/F value based on load or MAF cfm, and engine speed. Marine O2 Sensor Adapter Plate - Affordable Fuel Injection 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. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? The adapter will be fastened in both metal parts so that no water will reach the O2 sensor. Welcome to ClassicBroncos! Holley Sniper - Oxygen Sensor Location | IH8MUD Forum Specs. Anti-Seize pre-applied to sensor threads. You'll also notice that the firing order is 1-6-5-4-3-2. If you've done some automotive fuel map tuning before, you can likely overcome this challenge. Sniper EFI 2300 Marine. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. Found out that it was due to rfi/emi. 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. 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. I have a local customer with a pair of big blocks in his offshore boat that is eager to get started on this. Amazon.com: Holley EFI Wbo2 Sensor, Sniper Tbi : Automotive 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. Staff Writer. 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. 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. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. You really want a bigger engine. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Holley sniper issue on newly rebuilt motor, Holley Sniper with Duraspark and timing control. Welding in an O2 Sensor Bung for a Holley Sniper EFI System #HM206 - ADAPTOR, O2 SENSOR for Marine use - Howell EFI Conversion I have not yet got it figured out. It may not be enough to cause problems with the way the engine runs aor even make into the cylinders, but it is enough of a mist to take out a O2 sensor. If you are not running the latest software stop guessing and go download it. On a side note: Im getting 4200 rpms at 5000 elevation with stock heads. Use a return fuel line. Staff Writer. 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. Holley Sniper EFI Oxygen Sensors 554-155 turn on the ignition.but do not start the engine. 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. 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. 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. It has about 18 hrs to date and is working great. Add to Cart . One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. When it did keep running, the headers all started to smoke. I want to register an account for free right now! All sensors are tested to ensure they accurately report critical engine data to the . Yes, this is an old thread, but it's an old unit. You will still get some water on the engine side of the snails, mainly at low Rs. In Stock. :-), I started using OMC and Volvo Penta pumps for my conversion. Q2. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. The first option is to just buy the injector body and the controller with the wiring harness and sensors. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. Pink switched power wire, this needs to be connected to a point that is 12V in run and while cranking. 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. Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. The fuel module is self contained with water jacket cooling and contains the low and high pressure pumps. The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. From there, our highly trained factory refurbish technicians flow the original fuel injectors. Here's the pic of the location with my header. Free ground shipping regardless of order size! Is Holley working on a complete marine package or planning to in the future? The wiring was a bit of a mess. quick fuel. You need to intimately know the system you are using, its capabilities and limitations, install it correctly and have it tuned with someone with experience specific to marine applications. Tech Resources. http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to
The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. You must log in or register to reply here. Now the lower cost Holley Sniper advertised for March 31 2016. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Everyone else was backordered several months. Please consult the Holley Sniper full manual and use this guide for supplemental clarification. I've been building a TBI system from GM parts to use on a 1987 Wellcraft with the Mercruiser 4 cylinder engine. Holley EFI Oxygen Sensor. 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. What Is Pinion Offset, And How Does That Affect You? test the sensor.. for a basic pass/fail of the sensor. Sniper EFI 2300 Marine. Dec 28, 2016. Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Followed all the instructions to the letter. (REGISTERED USERS DO NOT SEE THIS POST/AD! 100% identical. In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey! You are using an out of date browser. 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. Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 It works great where its at. Sniper EFI 4bbl Marine. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. 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. EFI EFI kit electronic fuel injection. Wiring the Holley Sniper EFI system is equally easy. 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. Add to Cart . This Video Shows Ideal O2 Sensor Placement! As I have since added above, the Sniper simply isn't going to be the system to use to tackle this problem. Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. Q1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I have a 74 bronco, 302, mild cam. The truck started fine after install, and ran down the road ok. After some time, the truck will not start after it comes to operating temperature. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. 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. Holley sniper issues - 1969-70 Technical Forum - 69stang.com and Copyright 2022 Holley Performance Products, Inc. All right reserved. check out the. I don't have enough experience with marine applications to know exactly what it will take to solve this. I thought about adding some sort of extra protection but never did. Troubleshooting Holley Sniper that hesitates on acceleration The original Holley Sniper instructions are available on the Holley website if you have misplaced them. Throttle body mounted ECU - no extra boxes to mount. I have searched thru the forum as much as I can, with not much luck. Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr.