You can selectively provide your consent below to allow such third party embeds. Was in marine engineering for years. Initial Calibration in Basic Configuration. suspect bad o2 sensor with Holley efi | Yellow Bullet Forums Restore or update your Holley Sniper EFI System with this WBO2 Sensor 17025 Bosch 554-155 Holley. 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. is donald smith still alive; julie grant court tv cheerleader If you are not running the latest software stop guessing and go download it. Q3. If you call, they usually let you put in your name and they get back to you. If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. A replacement clamp on would be an easy change out. Master ASE tech since 91. Part # HM206. This was for MPFI. Sep 14, 2021. -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? The O2 sensor burned out immediately. This is the 02 sensor adapter I used. 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. Next, the new unit was installed onto the manifold. watch the values in the software for the o2.. once is is done "Heating" and starts to show AFR, wrap the rag round it. What I don't want to do is spend more money on the headers than on the fuel injection upgrade and new propeller set. Yellow Cold! Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! so far so good love the smooth power and easy starts. 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. George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. By Joshua C on August 10, 2021 | Verified Owner, Worked right out of the box. Sniper EFI 4500 Marine. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. JavaScript is disabled. Perfectly Taipei - 25 Must-See City Highlights | Taipei Travel Converting Marine Engines to EFI | EFI Pro Hangout | General Studies Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. I have a boat with twin 3.7 Mercruisers. 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. It flows 850 cfm and can support up to 650 horsepower. Do you recommend in-tank or external fuel pump? For a better experience, please enable JavaScript in your browser before proceeding. Part# 554-155. The Sniper EFI master kit contains the most complete EFI fuel system on the market. Right now I'm just using the AEM Wideband sensor to monitor Air/Fuel ratio but hope to use it in an EFI system soon. On a side note: Im getting 4200 rpms at 5000 elevation with stock heads. Introducing Sniper EFI Master Kits, with a Returnless Retrofit Fuel Module. Everything about the fuel prime shot can be adjusted. Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish. This doesn't apply to race boats. Menu. Powering the Sniper, There are three wires that need to be connected to power on the Sniper, Red and Black main power wires, these need to be run directly to the battery and have a solid connection. I had the pink ecu signal wire connected to a bullet connector on the passenger side . the engine not running. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. excessively rich mixtures), Mechanical shock (e.g. 4. Welding in an O2 Sensor Bung for a Holley Sniper EFI System . 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. Yes! Add To Cart. Now the lower cost Holley Sniper advertised for March 31 2016. My question is concerning what happens a year later, when I have a top-end swap . Are you running the latest software? When it did keep running, the headers all started to smoke. PDF Holley Sniper Installation Supplement RPM going up and down , miss firing and backfiring. Thanks for the heads up. No worse than taking the reading in the intake manifold cross over. The very front would be the safest place. 29. Advanced throttle body injection systems capable of transmission control and more. 100% identical. JavaScript is disabled. 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. It flows 850 cfm and can support up to 650 horsepower. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Everyone else was backordered several months. Are you holding your RPMs back with the MSD for some reason? Given the traditionally poor fuel economy of carbureted marine engines, we feel your pain. Add to Cart . 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? Here's the pic of the location with my header. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. Holley Sniper O2 sensor replacement. As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. functioning controller during engine operation. EFI System Pro also has a good bit of tech info on their website. Runs like a champ now. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? Anything else is going to be a frustrating recipe for for failure. All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. Part Number: 510-554-155. . It appears that its a tuning issue. 2 Reviews. 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. It has about 18 hrs to date and is working great. The Tech Tips and discussions are also great! $119.95. 74 FJ40 confined to the swamp. You really want a bigger engine. 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 will let you know what happens. If you're thinking that you've read everything above and are ready to toss the carb on your marine engine then take this handy quiz to make sure! pull the sensor out of the exhaust. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. May God's grace bless you in the Lord Jesus Christ. To take advantage of all the site features, please take a moment to register. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. I also capped off the regulated return line with a hose, clamps, and chamfering bit. Bolt-on carburetor style EFI for your classic car or truck. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. 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. In Stock. They are about 4 inches long, in-line between the log and manifold. Any word on this? 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. Why? Holley Sniper EFI - Page 3 - Offshoreonly.com An adapter harness is available to connect this distributor directly to the Sniper EFI throttle body. 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. This really applies to any O2 sensor regardless of EFI system. Has been since the 80's. When either of these operating temperature ranges is exceeded, the sensor can no longer be . JavaScript is disabled. In the end I ended up using a Fuel Control cell made by Pleasure Craft Marine for their 351W engines. The ones in the Bosch box come without warranty. The target A/F value based on load or MAF cfm, and engine speed. 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. By bypassing the built in pressure regulator in the fuel module(allowing full flow and pressure), using 3/8 hard lines to/from the sniper to meet CG rules( no soft lines on the engine block)using the snipers fuel pressure regulator, This is as close as I can come to safe. There are drawbacks to that (as your tuner can explain in more detail) but it is doable, provided the system is correctly tuned initially. Sort. If this is a first time effort, find a tuner in your area with marine experience. Here is one on start up tuning. 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! Categories. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. Howell indicates that this adapter was designed for the Chevy type Mercruiser manifold but that it should work on any similar marine wet manifold. Part# 50-5009QFT. 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 took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. I've installed several of these adaptive EFI's on cars with great success. Wiring the Holley Sniper EFI system is equally easy. 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. Douglas Cline. Add to Cart . Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. He is a wizard, might be able to give you some pointers, will ask you what version of the software you are on, whether you're running the progressive adjustable linkage, etc. I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. Are you running the entire system? Incense-veiled temples with exquisite carvings and paintings dating back to dynastic times blend seamlessly in streets of the modern city. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. A forum community dedicated to performance boat owners and enthusiasts. You have to angle it to help the throttle cable get around the booster. Holley's self learning system is a blessing and a curse. However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. Wideband Realities: The Truth About Oxygen Sensors - EngineLabs The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. Please consult the Holley Sniper full manual and use this guide for supplemental clarification. It should be pretty straight forward what each of these values do. you don't want to read that loss. He knows his stuff, gets back quickly to you, etc. Also the progressive link. 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. Bolt on 4150 Flange Carburetor Replacement. After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. 02/25/2020. Visit their website for more details. I want to register an account for free right now! Holley EFI requires several pressure inputs in order to run an engine. With over the transoms you might get away with it if the water is introduced at the very very end, and the O2 is mounted right at the log. Product Q&A . http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to The spark must be manually tuned. QFI-500 Oxygen Sensor. Great Article. Phil is right. 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. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. holley efi. 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. I will be calling around to see if I can find someone to help that has experience. Holley sniper issue on newly rebuilt motor, Holley Sniper with Duraspark and timing control. O2 Sensor Mounting: The O2 needs to be mounted 6-8" after the merge in the header collector. 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. I want to remove the old fuel injected Mercruiser factory EFI on both engines because they have begun to be troublesome. Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. So please, If you have problems registering or can't log into your account, please. That is defacto step one in trouble shooting fuel injection systems. I'm using the NTK sensor. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Advertising . The fuel pump question is the tough one. O2 sensor failure on a Holley Sniper EFI - YouTube They are the only ones got me a holley usb to can cable fast. 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. How To Properly Place and Install an O2 Sensor - Holley EFI System Pro had everything I needed for my EFI upgrade. Mine is right where Steamers is, and works well with my AFI TBI. 3. This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right? Can anyone share their experiences with this type of setup? Sensors: Fitting: Threaded O2 . Sniper EFI 2300 Marine. GA - As close to the lake as I can afford A powerful, MICRO BlueTooth in dash audio solution! : For registered members this ad will NOT show. All times are GMT-6. You will still get some water on the engine side of the snails, mainly at low Rs. turn on the ignition.but do not start the engine. Maybe my manifolds leaked the inside between the snail and the log?? 10 min read. I'm about to embark on the same type of project. I hope that the next F/2F header is more O2 sensor friendly. The original Holley Sniper instructions are available on the Holley website if you have misplaced them. In this case, the prime shot is good for cold, but too much for warm. Finally, do you also recognize that the self-tuning feature of the Sniper EFI may not result in an acceptable configuration for your boat and, as such, may require you to seek professional tuning? It 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. I'm guessing by snail, that's another name for the riser? 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. 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). And the relay and fuse were mounted along the firewall. The fuel lines and fittings are 3/8s with 8AN fittings and everything on the 60 requires 5/16 fuel line with 6AN fittings) Holley Sniper EFI 550-849 Holley Sniper EFI 2300 Self-Tuning Kit - Shiny Finish. If you have long tube headers, mount the sensor approximately 6-10" after the collector. We use cookies to enhance your experience while using our website. Sensors that are installed in an exhaust must be connected to a properly 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. Part# 554-155. holley efi. The light shines in the darkness, and the darkness has not overcome it. I've dunked mine lots of times. I will keep the replacements as spares. 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. Add to Cart . 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. 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. check out the. While these base maps are generally quite good for cars they are going to be pretty far off in the case of marine applications. CTS (Coolant Temperature Sensor) - Reads engine temperature. 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. My bet based on longer pump run, to make pressure, you have a leaking injector. running holley sniper without o2 sensor - plural.works It doesn't even mean that you can't do it. Yes, this is an old thread, but it's an old unit. EFI is the wave of the future. Holley EFI 554-155 Holley EFI Oxygen Sensor He had one there that was run on a dyno then the fuel map was set and shipped back. AFR was 19 area. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. 2014 FJ Cruiser - White - 4X4 - Loaded - . Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Maybe this one has a shorter cable? Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. Price Point: $$$. Staff Writer. Terminator X O2 sensor Off the shelf replacement? so simple check first, whats the fuel pressure? I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon.

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