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. 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. 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. GA - As close to the lake as I can afford A powerful, MICRO BlueTooth in dash audio solution! 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. Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. No prime, but a second later it's ready to crank 'normally'. 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. The Sniper EFI could very well be one of the easiest to set-up fuel injections systems ever. 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 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. 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. Stay up to date with the latest releases, events, promotions and more. http://s621.photobucket.com/albums/tt291/Mark11530/?action=view¤t=MAH05771.mp4, http://www.holley.com/data/Products/Technical/199R10226.pdf. So far so good. I am happy with Holleys no hassle replacement of the parts. replaced my original terminator x sensor that was mounted in an exhaust that took on some water and killed the original sensor. We also use content and scripts from third parties that may use tracking technologies. Part# 554-155. 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. 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. Holley EFI. Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. The fuel pump question is the tough one. Apr 13, 2017. with the extension. He had one there that was run on a dyno then the fuel map was set and shipped back. All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. Some of the landlubbers who are reading this may not realize that many inboard engines utilize what is called a wet exhaust, pushing the water from the engine block into the exhaust and then back into the lake/river/sea on which they float. I am concerned about the O2 sensor consideration, but in the end isn't the carburetor situation open loop? Pricing was reasonable, shipping was prompt and Chris helped me with a wiring question during my install. No worse than taking the reading in the intake manifold cross over. Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. The Sniper EFI throttle-body drops in place of your . Idle and off-idle performance (particularly as the engine goes into gear.) 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). Plug into the coolant temperature sensor. . The opposing pistons share a crankpin the way they do in a V-8, but the fact that there are only three cylinders on each bank means that the plugs fire at 90-150-90-150-90-150 intervals. For a better experience, please enable JavaScript in your browser before proceeding. I have searched thru the forum as much as I can, with not much luck. 3. It will flood itself out and won't start back, just crank and crank. I have also picked up another .5 gallons per hr to about 9.25 gph. I'm using the NTK sensor. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. 29. About your only location is in that short area from the log to the port face. I've installed several of these adaptive EFI's on cars with great success. 74 FJ40 confined to the swamp. It will not fit on round or oval risers without a suitable flat area. CTS (Coolant Temperature Sensor) - Reads engine temperature. The spark must be manually tuned. One workaround was to leave it in gear and slow to a stop and push the clutch as RPMs drop . Still needs a EFI pump and return line. Did you use the Holley fuel pump and have you had any issues with it? The Sniper will do that. Holley EFI requires several pressure inputs in order to run an engine. The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. Marc, you don't mention which system you installed but the Holley systems are fully configurable. 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. And it is timing that is equally critical to best performance and fuel economy. Sniper EFI Releases new Stealth 4150 Models! When the Sniper EFI System received USCG approval at the end of 2018 this presented some hope for boat owners. Each engine has the Holley marine 2 barrel carburetor. Welcome to ClassicBroncos! For now I have a genuine bosch O2 and Standard Automotive TPS installed. Has been since the 80's. Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. I've got the Howell EFI adapter installed in the riser of some standard Inboard Manifolds and it works great. The World's largest Yellow Init In First shown for an instant when the system is powered on. You really want a bigger engine. Look at the bottom.. I will be calling around to see if I can find someone to help that has experience. 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. I only have a stick welder and didn't trust myself on the thin pipe so I brazed it in. looking at doing the same. Register now for free! Well an update on the Sniper install. I think installing a wide band O2 sensor in the manifold(s) is a great idea. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! so simple check first, whats the fuel pressure? When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Everyone else was backordered several months. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Also the progressive link. Sorry for the late reply, Douglas. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. Supports up to 650hp with Four 100 Lb/Hr Injectors! The light shines in the darkness, and the darkness has not overcome it. YES! If I am reading your post correctly you are using two separate o2 sensors when using headers ? 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. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. Incense-veiled temples with exquisite carvings and paintings dating back to dynastic times blend seamlessly in streets of the modern city. Register now for free!) Follow USCG rules about materials and fittings. Add To Cart. The wide band O2 sensor is required for initial running and calibration. Thanks for that, Danny. It works great where its at. After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. Fuel economy went from 12.5 to 13.5 gph to 10 gph. It has about 18 hrs to date and is working great. As I have since added above, the Sniper simply isn't going to be the system to use to tackle this problem. OP, the Edelbrock system looks to use the same basic sensors as the Holley sniper system: TPS, MAP and O2, plus a few supporting sensors. 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. 2. I had the pink ecu signal wire connected to a bullet connector on the passenger side . It does not look like anything particularly superior in concept. 10 min read. QFI-500 Oxygen Sensor. 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. Good luck to all. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. 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. So there is at least some probability of success. 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. Capability Range: Advanced 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. They have been working out well for a few years now. Note, that is not a crack in the exhaust manifold, just a shadow from a casting flaw. I received my replacement TPS and O2 sensor. you don't want to read that loss. Q3. My Lightnings have a bung welded through the water and into the dry exhaust area at the collector. Homemade body parts replace the originals as they rot away but it's a 40 on the inside. 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. When either of these operating temperature ranges is exceeded, the sensor can no longer be . Why? For the most part each engine wants a bit of its own timing set-up IMHO, you boat owners with a 270HP 350 (or any other config) may want 350HP but upgrading it to that level will reduce or eliminate reliability. Capability Range: Advanced 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. Master ASE tech since 91. Bolt-on carburetor style EFI for your classic car or truck. For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. Sniper EFI 4bbl Marine. Thanks guys. Wideband Oxygen Sensor Extension Cable. Staff Writer. The very front would be the safest place. Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. It may not display this or other websites correctly. 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. Much of the system is encased right inside the throttle bodyand that includes the ECU. Let me know how I can be of assistance. http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to Capability Range: Moderate 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. To close this one out, below is a photo of where I installed the O2 bung. RPM going up and down , miss firing and backfiring. He knows his stuff, gets back quickly to you, etc. Do you recommend in-tank or external fuel pump? I have a boat with twin 3.7 Mercruisers. It's a compact HP pump and cooler assembly. I have not gone back in to try to fine tune them. Holley 554-100 NTK Wideband Oxygen Sensor. 29. 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. Maybe this one has a shorter cable? I've seen O2 sensors in water jacketed headers that have worked fine for years. From there, our highly trained factory refurbish technicians flow the original fuel injectors. I installed a holley sniper kit. What I don't want to do is spend more money on the headers than on the fuel injection upgrade and new propeller set. Copyright 2022 Holley Performance Products, Inc. All right reserved. Without Headers Steamers location (above) is perfect, up close to the engine where you . I will change and be using an in-tank pump when I install the new 120 gallon tank this winter. Features: . Capability Range: Professional $43 per night (Latest starting price for this hotel). Part # HM206. An adapter harness is available to connect this distributor directly to the Sniper EFI throttle body. *Possible delays due to Covid-19 click for more information. Advertising . *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. 2 Reviews. Will I be able to run both systems off of one fuel pump? Holley Oxygen Sensor O2 Bung Weld-In Style; Larger Image. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Sniper EFI Quadrajet Marine. Holley's self learning system is a blessing and a curse. While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. Tune the delay relay timing to just miss the prime shot.For cold starts, a simple push-button or switch "choke" override to power the relay during prime would provide it. Price Point: $$$. Holley Sniper EFI Oxygen Sensors 554-155 When buying the Holley Sniper EFI kit, you've got two basic options. Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. Only a few hours on the motor but so far so good. Even if you are the sort to sort of shrug off safety regulation, consider that if there is an accident that results in a loss and an investigation, failure to follow applicable USCG regulation could result in either financial or legal liability, not to mention the rejection of insurance claims. As far as a sensor goes, absolutely nothing. 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. 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. Bolt-on carburetor style EFI for your classic car or truck. Running? Without the engine running, AFR will read 35.6 The fuel pump will run off a relay in the sniper harness (blue wire) pink wire gets switch/run power to the relay. I tried holley tech support, no answer and put on hold for hours. I really dont want any issues on the whitewater lol Sponsored Links (REGISTERED USERS DO NOT SEE THIS POST/AD! Aftermarket headers are pretty much the only safe way to run an O2 sensor. This doesn't apply to race boats. The target A/F value based on load or MAF cfm, and engine speed. Distributor and ignition box? It does not work with the Sniper EFI oxygen sensor. Not always the case with a boat. 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. I am considering the Daytona Sensors Ignition module. 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. Has anyone run an O2 sensor in an EFI on a marine engine? 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. : For registered members this ad will NOT show. Sort. For a better experience, please enable JavaScript in your browser before proceeding. The reason I say this is that nowhere in this discussion is the fact that none of these systems are are handling the timing on the fly. 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. Part# 554-155. holley efi. Note the temperature sensor mounted on the back of the driver side head in the above photo. I'm guessing by snail, that's another name for the riser? Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Sniper EFI 4500 Marine. 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. To take advantage of all the site features, please take a moment to register. The spark must be manually tuned. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. But it is going to be a little tricky. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. On my system, I machined in the O2 sensor right between the snail and the manifold of a BBC. 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. EFI Systems based on Holley's world-class Dominator and HP ECU's. What is your fuel pressure at the carb during crank? Are you running the latest software? I had an injector fail after a month of running and called the tech line who helped me figure that out. The engines are rated at 170 hp each. You must log in or register to reply here. We may earn a small commission from affiliate links and paid advertisements. If you have long tube headers, mount the sensor approximately 6-10" after the collector. 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. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. 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. watch the values in the software for the o2.. once is is done "Heating" and starts to show AFR, wrap the rag round it. 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. This is great information that can only get you closer to an ideal solution. Your talking flames at that point, and it will definitely have an effect on the reading. Specs. 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. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. It could be an instant fix. Find a lower price anywhere and we'll beat it by 5%! Is this a good upgrade? running holley sniper without o2 sensorplymouth township mi police scanner. Items 1 - 21 of 21 Items. 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. The following vehicles are considered Racing Use Only Vehicles: Holley is the new standard in EFI! Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. And the relay and fuse were mounted along the firewall. Thanks. It turns out that this is a common problem with the Sniper EFI install on vehicles with a manual transmission. That is defacto step one in trouble shooting fuel injection systems. No one cares about your buddies old antiquated garden hose technology. I will keep the in-line pump for a spare. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. From there, the idea is that it will self-tune to the requirements of the engine. The truck started fine after install, and ran down the road ok. Oxygen sensor: It's perfectly OK to share narrow band oxygen sensors with the stock ECU. Sep 14, 2021. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. Wondering how you are progressing with this? Mike. If you find that please let us know. A replacement clamp on would be an easy change out. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. See Details. Add To Cart. It should be pretty straight forward what each of these values do. 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. Who knows. 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 hos. Got a picture? Introducing Sniper EFI Master Kits, with a Returnless Retrofit Fuel Module. Sniper EFI 4bbl Marine. Sniper EFI Releases new Stealth 4150 Models! I installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. For a better experience, please enable JavaScript in your browser before proceeding. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. Its the Holley Pro Jection TBI mentioned by the above poster. The clamp-on that came with mine wasnt a good fit on my 2" pipe. blue doberman puppies. You'll also notice that the firing order is 1-6-5-4-3-2. 4. 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! I'm about to embark on the same type of project. 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. 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. Full product line and accessories at excellent pricing. All I can say is it made a completely different motor out of the 460, 39 degrees out and starts within 2 revolutions power is super smooth throughout the rpm range (idle to 4100rpms 212 Hamilton with 4.0 turbo impeller) has about 6 hrs of learn time. 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. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. I think I could run more boost but it's a real hand full right now. I took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. But this also makes me wonder what you did for the O2 sensor. I am just now ready to do the tuning this weekend. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Add to Cart . Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. Sniper EFI 2300 Marine. For complete information about the cookies we use, data we collect and how we process them, please check our, actual instructions in flowcharting are represented in, Why Is Dave Blankenship Not On Oak Island Season 8, rhode island groundwater classification map. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. 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. I have not yet got it figured out. Put an end to cold start issues, hesitations, vapor . If you've done some automotive fuel map tuning before, you can likely overcome this challenge. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. Jun 7, 2021. Free ground shipping regardless of order size! Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. What motor is this on? 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. I installed the adapter and elbow so it's at an angle above the entry point. So I bought the progressive linkage but you then have . A forum community dedicated to performance boat owners and enthusiasts. The original Holley Sniper instructions are available on the Holley website if you have misplaced them.
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