running holley sniper without o2 sensor

Who knows. Install the throttle linkage to the Sniper EFI throttle body. Sorry for the late reply. The fuel pump question is the tough one. 534-199. They have been working out well for a few years now. It does not work with the Sniper EFI oxygen sensor. Supports up to 650hp with Four 100 Lb/Hr Injectors! I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. I have not gone back in to try to fine tune them. The first option is to just buy the injector body and the controller with the wiring harness and sensors. Maybe going all the way to the front is the way to go? Not sure how well the sensor likes being that close to the port. 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. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 5. Capability Range: Professional 2023 Holley Performance Products, Inc. All Rights Reserved. May God's grace bless you in the Lord Jesus Christ. But MAP sensors are very easy to physically implement and are inexpensive. The throttle body has a built in fuel pressure regulator set at 58.5 psi. Have you visually verified that all your injectors are spraying? Note the temperature sensor mounted on the back of the driver side head in the above photo. This completes the basic installation of the Holley Sniper EFI 4150 Super Sniper 1250/650 kit. Do you recommend in-tank or external fuel pump? 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. 3. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? Went with around .525 lift, 270 duration on a 114 LSA and the car was sucking vacuum like a new hoover. I'm about to embark on the same type of project. You'll also notice that the firing order is 1-6-5-4-3-2. Find a lower price anywhere and we'll beat it by 5%! Mike. As always, your results may vary and batteries not included. 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. You will still get some water on the engine side of the snails, mainly at low Rs. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. The in tank pump is quieter, will normally run cooler and should last longer. Increasing efficiency is always a good idea. Just a rumor. I installed a holley sniper kit. . One example of a direction could be an adjustable timed delay-on injector-power relay in the injector power feed wire, delaying 1-second after key-on or whatever is necessary to bypass the prime shot time, only. ), 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. B/c what it sometimes perceives as a lean spike is actually raw fuel with no oxygen. When either of these operating temperature ranges is exceeded, the sensor can no longer be . About your only location is in that short area from the log to the port face. The truck started fine after install, and ran down the road ok. 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. Once the tune is complete, the O2 sensor can be defeated or . Everything about the fuel prime shot can be adjusted. John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity. 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. Sniper EFI Releases new Stealth 4150 Models! test the sensor.. for a basic pass/fail of the sensor. Sort. It doesn't even mean that you can't do it. It will crank and run great for 2-15 seconds then die. Was in marine engineering for years. YES! If you call, they usually let you put in your name and they get back to you. Had to replace the oxygen sensor on my car for the terminator x after the original one failed and this fixed all my problems. Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. Thanks for the heads up. Holley EFI Oxygen Sensor. Found out that it was due to rfi/emi. 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.) Is the O2 sensor on the dyno must have a very long pipe extending past where it is positioned or backwash from the room air will violate the readings as well as any header leaks. #1. Full product line and accessories at excellent pricing. Holley recommends a 3/8" fuel supply line. Yes, this is an old thread, but it's an old unit. Fine tuned the timing to 12-15 degrees. Posted By : / actual instructions in flowcharting are represented in /; Under :nose exercise before and afternose exercise before and after Your talking flames at that point, and it will definitely have an effect on the reading. The included fuel system places a 340LPH fuel pump in the tank, which can easily be . It could be an instant fix. Make sure to put anti seize on the threads. Capability Range: Advanced The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. Could show a lean condition when in fact it really isn't. Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. 2014 FJ Cruiser - White - 4X4 - Loaded - . On EFI systems such as Holley's Sniper, all of the EFI sensors (except for the O2 and coolant temperature sender) are mounted snuggly in the throttle body. Look at the bottom.. I really dont want any issues on the whitewater lol However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. Seems to have more low end tq and is much smoother power through out the rpm range. Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Free ground shipping regardless of order size! Below are the most common sensor usages in a Holley EFI system, however pressure transducers can be applied to any form of pressure in an automotive system, from oil pressure, to exhaust back pressure, and the data gathering usages in racing can get quite creative. Wideband Oxygen Sensor Extension Cable. p.s. Good luck to all. Holley Sniper EFI Wideband Oxygen Sensor. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. Bolt-on carburetor style EFI for your classic car or truck. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. This page was generated at 08:35 AM. I'm using the NTK sensor. I will keep the replacements as spares. The spark must be manually tuned. 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. An update from Al:After installing them I used the auto tune program on the Holly HP V4 software and they are working great. The Sniper EFI could very well be one of the easiest to set-up fuel injections systems ever. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. You are using an out of date browser. What exhausts are the best? Thanks for that, Danny. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Customer Rating: 4.3 out of 5 stars: 4.5 out of 5 stars: Sniper EFI 2300 Marine. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? 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. I installed it without O2 sensor, adjust on the fly. 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! 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. For the most part, the small harness is plug-and-play. So please, If you have problems registering or can't log into your account, please. 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.). Q3. I know from some of the other posts, there have been WBO2 sensor issues. Without Headers Steamers location (above) is perfect, up close to the engine where you . I installed one also on mercruiser 260 hp. 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 . As I have since added above, the Sniper simply isn't going to be the system to use to tackle this problem. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. You must log in or register to reply here. While these base maps are generally quite good for cars they are going to be pretty far off in the case of marine applications. On my system, I machined in the O2 sensor right between the snail and the manifold of a BBC. Tech Resources. I will keep the in-line pump for a spare. We can hear the initial fuel spray into the body, but it appears that its not enough to start the engine while hot. - You are currently viewing the forums as a GUEST. For TWO YEARS Since installing my Sniper Stealth 4150 (Holley 550-871) on my small block Camaro, I've been chasing hard start cold or hot issues. #1. I have a 74 bronco, 302, mild cam. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. 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. 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. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. 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. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. If the indicator reads "LOW Err" double check the connection to the CTS. 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. Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. When it did keep running, the headers all started to smoke. Wondering how you are progressing with this? Got a picture? I installed the adapter and elbow so it's at an angle above the entry point. Register now for free! I also capped off the regulated return line with a hose, clamps, and chamfering bit. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. 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. Ran about 5 seconds and died. It turns out that the loading generated a propeller in the water is significantly different than wheels on pavement, so much so that the map has to be tuned differently. 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. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. There can be leftover debris from manufacturing that have been washed down and are now clogging one. And the relay and fuse were mounted along the firewall. But it is going to be a little tricky. CUSTOM ART FOR CUSTOM NEEDS. This doesn't mean it can't be done. Brand: Holley EFI Emission Code: 4 . Welcome to ClassicBroncos! Menu. Yes, this is going to be an added expense, however, it will help guarantee your success. EFI EFI kit electronic fuel injection. EFI System Pro also has a good bit of tech info on their website. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. 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. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. No matter what I do, it will not start. $102.95. I had questions on the suggested "Marine O2 Sensor Adapter" from Howell EFI (https://howellefi.com/product/adaptor-o2-sensor-for-marine-use/), but when I look to the pictures, I understand how it will work. Can anyone share their experiences with this type of setup? Put an end to cold start issues, hesitations, vapor . 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. The truck started fine after install, and ran down the road ok. 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. i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. I'm 3" down from the bottom of the flange to center of bung. The ones in the Bosch box come without warranty. They are about 4 inches long, in-line between the log and manifold. Did you use the Holley fuel pump and have you had any issues with it? It's fast, simple and absolutely free. 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. See Details. CTS (Coolant Temperature Sensor) - Reads engine temperature. But you have to get it tuned. It flows 850 cfm and can support up to 650 horsepower. I received my replacement TPS and O2 sensor. Aug 17, 2013. I think I could run more boost but it's a real hand full right now. I am just now ready to do the tuning this weekend. well I have installed the Sniper on my 460 KEM (Ford) marine motor. I recently installed the sniper setup on my stock 71 duster 340 4 speed. On my system, I machined in the O2 sensor right between the snail and the manifold of a . 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! While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. This really applies to any O2 sensor regardless of EFI system. Incense-veiled temples with exquisite carvings and paintings dating back to dynastic times blend seamlessly in streets of the modern city. Bolt-on carburetor style EFI for your classic car or truck. The wide band O2 sensor is required for initial running and calibration. They have mods that help. Some parts are not legal for use in California or other states with similar regulations. 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. Replacement Sniper and Terminator X O2 Sensor. 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. excessively rich mixtures), Mechanical shock (e.g. 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. Specs. There was a 1.5 point difference in afr between banks. Super helpful and knowledgeable. Maybe my manifolds leaked the inside between the snail and the log?? Sniper EFI 2300 Marine. It works great where its at. Be sure to disable autotune and remove the O2 sensor before it dies. 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. Jan 20, 2019. 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. 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. 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. Im almost at your exact same setup on a Redline 460/Berkeley pump but waiting to pull the trigger on the Sniper until I can pinpoint exactly where I can install the o2 sensor without the wet exhaust damaging it. Sensors that are installed in an exhaust must be connected to a properly Free ground shipping regardless of order size! EFI Systems based on Holley's world-class Dominator and HP ECU's. I had the pink ecu signal wire connected to a bullet connector on the passenger side . Everyone else was backordered several months. I upgraded from terminator x Maxx to dominator.. bought a 2nd o2 sensor kit with Bosch sensor and used an off the shelf Bosch I had been using with terminator. It 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. 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. Everyone raving about customer service is telling the truth! *Possible delays due to Covid-19 click for more information. Add to Cart . Yellow Init In First shown for an instant when the system is powered on. I'm looking for some more practical and scenario-specific advice; that's one small piece of it. The clamp-on that came with mine wasnt a good fit on my 2" pipe. It's a compact HP pump and cooler assembly. Thanks for the feedback on this adapter, Donald. Distributor and ignition box? One comes in the form of a Marine O2 Sensor Adapter from the folks at Howell EFI. I would back-burner the ignition control questions until you get the fuel injection working. Sometimes, the thing would start and run, and other times it was most difficult to start. Holley EFI Oxygen Sensor. Jun 7, 2021. Boats don't cruise at 60mph up and down hills. My question is concerning what happens a year later, when I have a top-end swap . It does not look like anything particularly superior in concept. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. Let me know how I can be of assistance. I want to register an account for free right now! 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. No worse than taking the reading in the intake manifold cross over. Fuel economy went from 12.5 to 13.5 gph to 10 gph. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. Advanced throttle body injection systems capable of transmission control and more. Holley part number 554-155. The very front would be the safest place. Replaced and gapped to .45 all spark plugs. Purely coincidence about the '2300' number. 3. The new Exhaust manifolds will have wideband O2 bungs for tuning. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. Advanced throttle body injection systems capable of transmission control and more. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. Adam. Part# 534-199. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. I just discovered that was the case with my Fitech. I have a 74 bronco, 302, mild cam. Has been since the 80's. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. YES! But you've found the right one for your Holley Sniper EFI System OR your Terminator X EFI System. Bosch 17025 Oxygen Sensor #1 Best Seller . Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. To simplify . I am a competent mechanic and I have checked all the usual suspect items. If you have a manual tranny starting off without squealing the tires can be tricky because all four barrels open up at the same time. quick fuel. Holley Sniper EFI Oxygen Sensors 554-155 I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? away. Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. Also some tips on preventing O2 sensor damage Not always the case with a boat. Initial Calibration in Basic Configuration. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. O2 sensors are water proof. 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'm guessing by snail, that's another name for the riser? Specs. holley efi. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. The fuel module is self contained with water jacket cooling and contains the low and high pressure pumps. It will flood itself out and won't start back, just crank and crank. My bet based on longer pump run, to make pressure, you have a leaking injector. Well an update on the Sniper install. Part # 554-155. I don't have enough experience with marine applications to know exactly what it will take to solve this. I took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. You can selectively provide your consent below to allow such third party embeds. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. 5. Then dialed back the cranking fuel quite a bit and that seemed to help some, but still having ongoing issues. 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. Maybe this one has a shorter cable? And who can blame them? 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. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_.

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