Don't know about HP increase, with the QFT 750 it would turn a 212/4.0 combo to about 3950 to 4000, the Sniper turns it to 4000 to 4100. Marc, you don't mention which system you installed but the Holley systems are fully configurable. 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. Find a lower price anywhere and we'll beat it by 5%! (REGISTERED USERS DO NOT SEE THIS POST/AD! I had an injector fail after a month of running and called the tech line who helped me figure that out. 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. The engine RPM when closed loop o2 will begin. In a horizontal or if pointed upwards it can collect exhaust condensation liquids upon start up. Initial Calibration in Basic Configuration. Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . Anything else is going to be a frustrating recipe for for failure. Did you use the Holley fuel pump and have you had any issues with it? Yes, this is an old thread, but it's an old unit. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. That is defacto step one in trouble shooting fuel injection systems. Fortunately, it turns out there are some options. replaced my original terminator x sensor that was mounted in an exhaust that took on some water and killed the original sensor. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). I purchased the Holley HP MPFI system and went to the lake with it. Holley Sniper Efi - Mean Chicken Jet Boat Forum AFR was 19 area. Using the correct length carb stud and nuts, tighten the Sniper EFI throttle body down progressively in a "criss-cross" pattern (60-80 in.lbs.). As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. In the case of the car, you can generally get out and walk (run?) My tune is coincidentally set at 11.5 desired afr, with the failed side as the leanest bank, but the ecu added 15% fuel anyways. But you have to get it tuned. John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity. I'm looking for some more practical and scenario-specific advice; that's one small piece of it. It's a compact HP pump and cooler assembly. With a bad TPS you will have to manually prime to try and get it . 5. They are the only ones got me a holley usb to can cable fast. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. Then they had it repaired and back to me in 5 business days. 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. 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. When either of these operating temperature ranges is exceeded, the sensor can no longer be . Search for O2 Hotel Taipei Main Station discounts in Taipei City with KAYAK. - You are currently viewing the forums as a GUEST. When the Sniper EFI System received USCG approval at the end of 2018 this presented some hope for boat owners. 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. Holley EFI has the solutions you need to get your project up and running better than ever! (probably with the edelbrock marine 2506 intake). Holley EFI Usb/Can Harness, Sniper Tbi. 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. 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 World's largest 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. The original Holley Sniper instructions are available on the Holley website if you have misplaced them. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. . Thanks for the heads up. You really want a bigger engine. Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. No matter what I do, it will not start. I am considering the Daytona Sensors Ignition module. It works great where its at. ), 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. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. We can hear the initial fuel spray into the body, but it appears that its not enough to start the engine while hot. 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. I took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. Capability Range: Advanced p.s. The Sniper EFI master kit contains the most complete EFI fuel system on the market. The new Exhaust manifolds will have wideband O2 bungs for tuning. 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. 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.. Good luck to all. 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. I don't have enough experience with marine applications to know exactly what it will take to solve this. The O2 sensor burned out immediately. 5. To those who have installed the Sniper EFI units, please post up some photos of where you tapped the exhaust line to install the Oxygen Sensor's weld bung. Holley Sniper - Oxygen Sensor Location Thread starter GA Architect; . How To Properly Place and Install an O2 Sensor - Holley Can more detail be provided? Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. Part# 550-511. I myself will convert my 2 302's (Volvo Penta 5.0 l AQ231A) from carbs to EFI; I must find out everything before I start work on the engines, then I am satisfied to start. I am 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, Mine is right where Steamers is, and works well with my AFI TBI. Bolt on 4150 Flange Carburetor Replacement. I would back-burner the ignition control questions until you get the fuel injection working. You should then have at least 18-24" of pipe after the sensor. Previously, none of Holley's throttle body injection (TBI) systems, such as the Terminator EFI were USCG approved (even though the HP and Dominaor ECU's themselves are.) Still needs a EFI pump and return line. 2 Reviews. Sadly, no. PS, Once someone has a good 270/350 tune, everyone can use it. 3. It's hallmark is its simplicity--but in this case it is also it's shortcoming. Yeah, it may sound hokey to some, but is just one option to solve the issue where you are and with what you have. Bolt-on carburetor style EFI for your classic car or truck. Good luck! Warranty Information. functioning controller during engine operation. It may not display this or other websites correctly. Holley Sniper EFI Wideband Oxygen Sensor. I just discovered that was the case with my Fitech. 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. Sniper EFI Releases new Stealth 4150 Models! 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. Hello Chris,Ontario's boating season is about to launch for another year.Do you have any good news to add to your above article, any new marine friendly TBI products?In '08,I installed a Holley 21-700 TBI with the o2 mounted in the manifold to Holly specs. The Holley Sniper system sells for $999.95, installs in under 2 hours, and requires only an O2 sensor, a temp sensor (both included), an electric return-style fuel pump, and four-wires to connect.. Quote Reply Topic: Holley Sniper Posted: Jan/05/2022 at 2:01pm . Holley EFI has the solutions you need to get your project up and running better than ever! 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. My tune is coincidentally set at 11.5 desired afr, with the failed side as the leanest bank, but the ecu added 15% fuel anyways. JavaScript is disabled. 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. Innovate Motorsports HBX-1 Bung Extender. When buying the Holley Sniper EFI kit, you've got two basic options. Capability Range: Advanced Sensors: Fitting: Threaded O2 . Specs. 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. EFI System Pro also has a good bit of tech info on their website. What Is Pinion Offset, And How Does That Affect You? Sniper throttle body linkage opens all four barrels evenly when you depress the throttle. Pay close attention to the instructions on O2 sensor placement. Each engine has the Holley marine 2 barrel carburetor. It flows 850 cfm and can support up to 650 horsepower. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. It would cost considerably more but a second option that would have added performance benefits would be to switch to a dry manifld such as the headers available from Custom Marine, Inc. The in tank pump is quieter, will normally run cooler and should last longer. For a better experience, please enable JavaScript in your browser before proceeding. Has anyone run an O2 sensor in an EFI on a marine engine? The included fuel system places a 340LPH fuel pump in the tank, which can easily be . Aug 17, 2013. 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. Next, the new unit was installed onto the manifold. You have to angle it to help the throttle cable get around the booster. Part# 554-155. holley efi. 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. Visit their website for more details. Prime cannot be adjusted on this old unit. Add To Cart. I'm about to embark on the same type of project. That's great--we look forward to your results! The spark must be manually tuned. Converting Marine Engines to EFI | EFI Pro Hangout | General Studies 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. You shouldn't feel too bad about that lack of knowledge, because many boat owners either don't realize that the moisture present in their wet exhaust manifold will kill the wideband O2 sensor required by an EFI system. If this is a first time effort, find a tuner in your area with marine experience. : For registered members this ad will NOT show. 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. Purely coincidence about the '2300' number. On a side note: Im getting 4200 rpms at 5000 elevation with stock heads. The first option is to just buy the injector body and the controller with the wiring harness and sensors. Are you running the entire system? EFI System Pro had everything I needed for my EFI upgrade. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. Sort. I installed one also on mercruiser 260 hp. Make sure to put anti seize on the threads. Sniper EFI Installation Guide. This is made by Innovate, the guy that runs the Holley EFI forum HIGHLY recomends AND uses them himself, I use them, my o2 on my wideband Innovate, kept going bad, a 4.2 Bosch o2, put this on both my Holley HP NTK sensor & the wide band, been 2 years now & lots of driving, all good, Heat-Sink Bung Extender (HBX-1) - P/N: 37290 The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. I'm using the NTK sensor. Specs. What I installed on the motors was the Holley HP 19lb Holley Injectors the Holley 522-198 duel sync distributors with the MSD Digital 6A and the MSD Blaster 2 coils. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. 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. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Found out that it was due to rfi/emi. 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. I installed a holley sniper kit. The adapter will be fastened in both metal parts so that no water will reach the O2 sensor. 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. As always, your results may vary and batteries not included. 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. Douglas Cline. So much it could be. Have you visually verified that all your injectors are spraying? Holley sniper issue on newly rebuilt motor, Holley Sniper with Duraspark and timing control. 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. Late to the party but here's where mine are installed. Followed all the instructions to the letter. Great Article. 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. For a better experience, please enable JavaScript in your browser before proceeding. On my system, I machined in the O2 sensor right between the snail and the manifold of a . This is great information that can only get you closer to an ideal solution. If you call, they usually let you put in your name and they get back to you. Thanks for that, Danny. Full product line and accessories at excellent pricing. 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. It will flood itself out and won't start back, just crank and crank. Is this a good upgrade? -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? Sorry for the late reply, Douglas. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. I do agree if he can get it tuned prior to fouling he can lock that tune and run in open loop. They have mods that help. I have not gone back in to try to fine tune them. There is no problem getting this tuned and then running open loop. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. The very front would be the safest place. No, use only one 02 sensor, mounted close to exhaust manifold, or high up on a Header collector, not into a single Header pipe that merely gets a exhaust pulsation. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. A replacement clamp on would be an easy change out. is donald smith still alive; julie grant court tv cheerleader excessively rich mixtures), Mechanical shock (e.g. Why? As far as a sensor goes, absolutely nothing. Taipei has dozens of world-class restaurants where gourmets can sample the most authentic Chinese cuisines. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. It works fine. I installed it without O2 sensor, adjust on the fly. 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. 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. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. O2 sensor failure on a Holley Sniper EFI - YouTube the engine not running. Sniper EFI Quadrajet Marine. Wiring the Holley Sniper EFI system is equally easy. 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? Supports up to 650hp with Four 100 Lb/Hr Injectors! Sniper EFI 4bbl Marine. running holley sniper without o2 sensor - dowdcreative.com To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. . That sounds like one solution. 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. 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. Holley Oxygen Sensor O2 Bung Weld-In Style; Larger Image. It turns out that this is a common problem with the Sniper EFI install on vehicles with a manual transmission. Also some tips on preventing O2 sensor damage so far so good love the smooth power and easy starts. Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas. I think installing a wide band O2 sensor in the manifold(s) is a great idea. As far as packaging goes, one comes in a Bosch box, the other in a Holley package. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? I am a competent mechanic and I have checked all the usual suspect items. Has been since the 80's. Thanks for the feedback on this adapter, Donald. For the most part, the small harness is plug-and-play. Please consult the Holley Sniper full manual and use this guide for supplemental clarification. Car runs perfect . 02/25/2020. The spark must be manually tuned. Essentially, when I push the clutch in and ease on the brakes to coast up to a stop light, the AFR goes lean (18:1 or so) and the engine stalls. Bosch 17025 Oxygen Sensor #1 Best Seller . 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. Posted By : / actual instructions in flowcharting are represented in /; Under :nose exercise before and afternose exercise before and after Capability Range: Advanced O2 Sensor in a boat exhaust | Performance Boats Forum 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. I also capped off the regulated return line with a hose, clamps, and chamfering bit. This runs in the area of $1000 and has everything you need for a basic install on almost any vehicle equipped with a four barrel carb. What motor is this on? but I'm finding when running engines with holley sniper kits the the engines are very eratic ,the air fuel numbers are always changing drastically from one pull to . WBO2 Sensor 17025 Bosch 554-155 Holley - EFISystemPro.com 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. Once you have those points set, the rest of the map doesn't really matter, just make it look smooth/pretty and everything will be fine. 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. Items 1 - 21 of 21 Items. Holley EFI Oxygen Sensor. I was mocking it up at the time. Holley Sniper - Oxygen Sensor Location | IH8MUD Forum
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