running holley sniper without o2 sensor

I have not gone back in to try to fine tune them. I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. Ran about 5 seconds and died. I hope that the next F/2F header is more O2 sensor friendly. We may earn a small commission from affiliate links and paid advertisements. 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. Full product line and accessories at excellent pricing. Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas. Follow USCG rules about materials and fittings. Specs. I think I could run more boost but it's a real hand full right now. Are you holding your RPMs back with the MSD for some reason? From there, our highly trained factory refurbish technicians flow the original fuel injectors. Increasing efficiency is always a good idea. 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. It does not work with the Sniper EFI oxygen sensor. Just a rumor. running holley sniper without o2 sensor - dowdcreative.com For a better experience, please enable JavaScript in your browser before proceeding. Bolt-on carburetor style EFI for your classic car or truck. I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. We Test It: Holley's New Sniper EFI - MotorTrend Perfectly Taipei - 25 Must-See City Highlights | Taipei Travel WARNING: It is against the law to install this part on an Emissions Controlled Vehicle, By Corey A on June 4, 2021 | Verified Owner. Joe, where did you end up installing the o2 sensor on your setup? 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. The truck started fine after install, and ran down the road ok. You really want a bigger engine. 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 . I have about 30 hrs on the unit and it just keeps getting smoother with every hr of run time. I am just now ready to do the tuning this weekend. In the case of the car, you can generally get out and walk (run?) Apr 13, 2017. with the extension. 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. You can selectively provide your consent below to allow such third party embeds. EFI Systems based on Holley's world-class Dominator and HP ECU's. I am happy with Holleys no hassle replacement of the parts. This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right? 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. It should be pretty straight forward what each of these values do. *Possible delays due to Covid-19 click for more information. Given the traditionally poor fuel economy of carbureted marine engines, we feel your pain. Master ASE tech since 91. If this could be disabled it would be much better. 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. Advanced throttle body injection systems capable of transmission control and more. Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish. The throttle body has a built in fuel pressure regulator set at 58.5 psi. I have a local customer with a pair of big blocks in his offshore boat that is eager to get started on this. Add to Cart . Replacement Sniper and Terminator X O2 Sensor, This part is legal for sale or use on Racing Use Only Vehicles. Maybe my manifolds leaked the inside between the snail and the log?? Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. What is your fuel pressure at the carb during crank? Part# 554-155. holley efi. On my system, I machined in the O2 sensor right between the snail and the manifold of a BBC. Register now for free! ), 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. Add to Cart . EFI EFI kit electronic fuel injection. Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. Sorry for the late reply, Douglas. After discussing it in this thread and talking with Holley's tech support, I decided . From time to time we receive phone calls from individuals who are interested in converting their carbureted boat motor to fuel injection. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. Had to replace the oxygen sensor on my car for the terminator x after the original one failed and this fixed all my problems. 100% identical. Also the progressive link. It could be an instant fix. . Part# 50-5009QFT. Mike. Will I be able to run both systems off of one fuel pump? Douglas Cline. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. 2014 FJ Cruiser - White - 4X4 - Loaded - . I installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. Supports up to 650hp with Four 100 Lb/Hr Injectors! 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. the motor has the following mods, Aluminum heads, Performer intake, Sniper and MSD ignition module. Capability Range: Advanced Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. There was a 1.5 point difference in afr between banks. Capability Range: Advanced I also capped off the regulated return line with a hose, clamps, and chamfering bit. In the end I ended up using a Fuel Control cell made by Pleasure Craft Marine for their 351W engines. Posted By : / actual instructions in flowcharting are represented in /; Under :nose exercise before and afternose exercise before and after If you call, they usually let you put in your name and they get back to you. test the sensor.. for a basic pass/fail of the sensor. Followed all the instructions to the letter. . Super helpful and knowledgeable. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. The Tech Tips and discussions are also great! Sniper EFI Quadrajet Marine. I have not had it on the dyno with the sniper, but would guess probably about 400 to 410 hp and well over 500 tq.I did use the holley pump that came with the sniper. Did you use the Holley fuel pump and have you had any issues with it? Hi all, i'm contemplating doing a sniper quadrajet swap onto my volvo penta 5.7 GL 2bbl holley motor in my 1997 cobalt 200 with the DP-S outdrive. Other than the constraints provided in the article above I see no reason why this wouldn't be a great upgrade. I was mocking it up at the time. 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. That is defacto step one in trouble shooting fuel injection systems. Otherwise I have to check for a place in my gasoline tank to put the lines in. Your talking flames at that point, and it will definitely have an effect on the reading. I will be starting mine up this month, I hope it goes well, good luck to you. Holley EFI 534-199 Wideband Oxygen Sensor Extension Cable Purely coincidence about the '2300' number. Register now for free!) . 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. What exhausts are the best? What Is Pinion Offset, And How Does That Affect You? Here is one on start up tuning. PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. Price Point: $$$. This really applies to any O2 sensor regardless of EFI system. I have searched thru the forum as much as I can, with not much luck. This doesn't mean it can't be done. Shop Oxygen Sensors at Summit Racing. I am concerned about the O2 sensor consideration, but in the end isn't the carburetor situation open loop? A 90-degree V-6 has three shared crankpins set 120 degrees apart. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. Is the O2 sensor on the dyno must have a very long pipe extending past where it is positioned or backwash from the room air will violate the readings as well as any header leaks. Followed all the instructions to the letter. The target A/F value based on load or MAF cfm, and engine speed. I will keep the replacements as spares. Holley Sniper EFI Wideband Oxygen Sensor Part Number: 510-554-155 Click image to zoom $125.99 More than 10 available Lowest Price Guarantee Sniper EFI Wideband Oxygen Sensor Replacement Part for Holley Sniper EFI and Terminator X Systems Bosch LSU 4.9 See more product details Free Shipping - Ships Today QTY Add To Cart Add to Wish List The Sniper needs a "clean" 12V wire that is hot in Start and Run. I tried holley tech support, no answer and put on hold for hours. 10 min read. Sniper EFI Releases new Stealth 4150 Models! . Amazon.com: Holley EFI Wbo2 Sensor, Sniper Tbi : Automotive Menu. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. An update from Al:After installing them I used the auto tune program on the Holly HP V4 software and they are working great. Holley 554-100 NTK Wideband Oxygen Sensor. Categories. 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.). turn on the ignition.but do not start the engine. Look at the bottom.. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Are you running the entire system? They have mods that help. quick fuel. Do you understand that no USCG-approved aftermarket EFI fuel system (including fuel pump, lines, filters, adapters, and hose ends) exists, that installing unapproved components on a boat will make the boat out-of-compliance with USCG regulation and could result in financial loss and legal liability (and that you release us from any liability by proceeding)? Brand: Holley EFI Emission Code: 4 . I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. I installed the adapter and elbow so it's at an angle above the entry point. 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. Installed the sniper/MSD combo on my mildly built 460 KEM. Sort. I'm looking for some more practical and scenario-specific advice; that's one small piece of it. I am considering the Daytona Sensors Ignition module. Holley EFI has the solutions you need to get your project up and running better than ever! I installed it without O2 sensor, adjust on the fly. While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. Holley sniper help!!!! | ClassicBroncos.com Forum the engine not running. So much it could be. O2 sensor failure on a Holley Sniper EFI - YouTube 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. I put mine after the collector only because I have a new exhaust and muffler going in and Ill use a weld in bung and placement will be different. The engine floods and it is embarrassing when leaving a lock. Got a picture? O2 Sensor in a boat exhaust | Performance Boats Forum Aug 17, 2013. Phil is right. 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. You need to intimately know the system you are using, its capabilities and limitations, install it correctly and have it tuned with someone with experience specific to marine applications. Brand: Holley EFI Emission Code: 5: Material: . I purchased the Holley HP MPFI system and went to the lake with it. EFI EFI kit electronic fuel injection. Capability Range: Advanced That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Bolt-on carburetor style EFI for your classic car or truck. 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). Note, that is not a crack in the exhaust manifold, just a shadow from a casting flaw. AFR was 19 area. 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. The following vehicles are considered Racing Use Only Vehicles: Holley is the new standard in EFI! Be sure to disable autotune and remove the O2 sensor before it dies. https://www.efisystempro.com/efi-pro-hangout/sniper-installation-tips-holley-tom-kise, https://www.efisystempro.com/efi-prng-engine-startup-sniper-terminator-x-stealth. But you have to get it tuned. Sniper EFI 2300 Marine. 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. I received my replacement TPS and O2 sensor. Holley EFI 534-49 Holley Oxygen Sensor O2 Bung Weld-In Style The spark must be manually tuned. Plug-And-Play Compatible with Holley Sniper EFI System, Only for applications that use a Bosch LSU 4.9 0 258 017 025 (17025) Wideband O2 Sensor, Particulates, carbon (e.g. I don't have enough experience with marine applications to know exactly what it will take to solve this. Note the temperature sensor mounted on the back of the driver side head in the above photo. watch the values in the software for the o2.. once is is done "Heating" and starts to show AFR, wrap the rag round it. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! Next, the new unit was installed onto the manifold. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Converting Marine Engines to EFI | EFI Pro Hangout | General Studies Sniper EFI 4bbl Marine. 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. well I have installed the Sniper on my 460 KEM (Ford) marine motor. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. 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. My hand is holding the connector to the sensor. Explained: Holley EFI Sensors and What They Do 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. Is this a good upgrade? I recognize that it would be an absolutely tremendous investment, but based on the overwhelming response we get to this post I am pretty confident that the market is there. EFI is the wave of the future. I installed a holley sniper kit. In this case, the prime shot is good for cold, but too much for warm. Thanks for that, Danny. The wiring was a bit of a mess. Now the lower cost Holley Sniper advertised for March 31 2016. Holley efi behavior with bad o2 sensor, safety feature Thanks for the heads up. Holley Sniper first start No o2 sensor - YouTube Anti-Seize pre-applied to sensor threads. so simple check first, whats the fuel pressure? As far as packaging goes, one comes in a Bosch box, the other in a Holley package. you don't want to read that loss. Replacement Sniper and Terminator X O2 Sensor. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. If you are not running the latest software stop guessing and go download it. Add to Cart . Runs like a champ now. Holley Sniper Marine EFI | Bloodydecks A forum community dedicated to performance boat owners and enthusiasts. About your only location is in that short area from the log to the port face. You should then have at least 18-24" of pipe after the sensor. 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. Who knows. Features: . Add To Cart. Plug into the coolant temperature sensor. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. Vega$69. This step is only for those installing their Super Sniper EFI on top of a draw-through or Roots-style blower. 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). It doesn't even mean that you can't do it. I just discovered that was the case with my Fitech. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. #3. As always, your results may vary and batteries not included. In order to do this, it heavily relies on proper O2 sensor placement. Sensors: Fitting: Threaded O2 . Capability Range: Professional O2 sensors are water proof. Followed all the instructions to the letter. WBO2 Sensor 17025 Bosch 554-155 Holley - EFISystemPro.com Will I be able to control my ignition timing with the Sniper? Thinking about this I think this will work very fine! 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. That's great--we look forward to your results! 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. I had the pink ecu signal wire connected to a bullet connector on the passenger side . Each engine has the Holley marine 2 barrel carburetor. 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. Description. It will crank and run great for 2-15 seconds then die. Holley sniper issues - 1969-70 Technical Forum - 69stang.com and From there, the idea is that it will self-tune to the requirements of the engine. -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). Replaced and gapped to .45 all spark plugs. 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. Late to the party but here's where mine are installed. Hopefully this one lasts longer than the original. Holley Sniper EFI Wideband Oxygen Sensor. I've seen O2 sensors in water jacketed headers that have worked fine for years. Precisely Adam. 2023 Holley Performance Products, Inc. All Rights Reserved. The clamp-on that came with mine wasnt a good fit on my 2" pipe. Holley Sniper Installation Supplement Please note, a Holley Sniper instruction manual, as well as some small parts that come with the . Make sure to put anti seize on the threads. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? Sensors that are installed in an exhaust must be connected to a properly functioning controller during engine operation 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. 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. It is possible for the ECU to have an internal failure that can kill O2 sensors. I have searched thru the forum as much as I can, with not much luck. It flows 850 cfm and can support up to 650 horsepower. 5. No one cares about your buddies old antiquated garden hose technology. John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity. If you find that please let us know. Some logs have water up to just short of the port. 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. But you've found the right one for your Holley Sniper EFI System OR your Terminator X EFI System. Sniper EFI Releases new Stealth 4150 Models! The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. My question is concerning what happens a year later, when I have a top-end swap . Product Q&A . Was told by holley tech support to make adjustments to the fuel prime percent and multiplier settings, played with those with no major improvement. You must log in or register to reply here. Install the throttle linkage to the Sniper EFI throttle body. Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. I mounted it here attempting to protect it from the deep water I play in and from lots of branches I encounter. There is no problem getting this tuned and then running open loop. This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues. 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. 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. I want to register an account for free right now! 74 FJ40 confined to the swamp. non biased Shelby Cobra related site! 5. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. Jan 20, 2019. But it is going to be a little tricky. (probably with the edelbrock marine 2506 intake). PS, Once someone has a good 270/350 tune, everyone can use it. 29. This completes the basic installation of the Holley Sniper EFI 4150 Super Sniper 1250/650 kit. I have also picked up another .5 gallons per hr to about 9.25 gph. 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. - The sales brochure refers to Integrated Ignition Timing Control and Coil Driver. 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. Is this a viable upgrade for my boat? 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. 2. Mine is right where Steamers is, and works well with my AFI TBI. The ones in the Bosch box come without warranty. Holley Sniper EFI - Page 3 - Offshoreonly.com I only have a stick welder and didn't trust myself on the thin pipe so I brazed it in. Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. Much of the system is encased right inside the throttle bodyand that includes the ECU. Yellow Cold! Holley EFI Usb/Can Harness, Sniper Tbi. To take advantage of all the site features, please take a moment to register. Get fast, Free Standard Shipping on orders over Summit Racing Equipment from $99 -- no shipping, handling, or rural fees!

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