Also some tips on preventing O2 sensor damage If you find that please let us know. Douglas Cline. Add to Cart . This completes the basic installation of the Holley Sniper EFI 4150 Super Sniper 1250/650 kit. From there, the idea is that it will self-tune to the requirements of the engine. This Video Shows Ideal O2 Sensor Placement! 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. Copyright 2022 Holley Performance Products, Inc. All right reserved. 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. An update from Al:After installing them I used the auto tune program on the Holly HP V4 software and they are working great. Is Holley working on a complete marine package or planning to in the future? I will keep the replacements as spares. Good luck! OT pipes may be out of the question, but with the water dumps put in at the transom, ala Gil or Rewarder OT pipes, you could get dry readings with bungs a little above where they bolt onto the logs, I would think. As far as packaging goes, one comes in a Bosch box, the other in a Holley package. That sounds like one solution.
Welding in an O2 Sensor Bung for a Holley Sniper EFI System I have a 74 bronco, 302, mild cam. Sniper EFI Installation Guide. 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. 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. 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. O2 Sensor Mounting: The O2 needs to be mounted 6-8" after the merge in the header collector. HP comes from torque and rpm and rpm breaks things and increases wear. 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. Have engine apart and head checked and cleaned at machine shop. If you are not running the latest software stop guessing and go download it. Sensors: Fitting: Threaded O2 .
Holley sniper issues - 1969-70 Technical Forum - 69stang.com and Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. *Possible delays due to Covid-19 click for more information. Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery. The Sniper EFI could very well be one of the easiest to set-up fuel injections systems ever. Wiring the Holley Sniper EFI system is equally easy.
Converting Marine Engines to EFI | EFI Pro Hangout | General Studies Menu. Stay up to date with the latest releases, events, promotions and more. Found out that it was due to rfi/emi. We may earn a small commission from affiliate links and paid advertisements. I don't have enough experience with marine applications to know exactly what it will take to solve this. Part# 554-155. holley efi. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. The first option is to just buy the injector body and the controller with the wiring harness and sensors. In the case of the car, you can generally get out and walk (run?) Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. 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. Everyone raving about customer service is telling the truth! It's hallmark is its simplicity--but in this case it is also it's shortcoming. This requires removing the plug with a breaker bar, and using a 1/2 NPT to 3/8 NPT adapter to mount the Sniper sensor. Doesn't look like it will have an O2 sensor. 5.
Holley sniper help!!!! | ClassicBroncos.com Forum Adam. Option 1 is to purchase and install one of the Holley EFI Dual-Sync Distributors on your engine. A replacement clamp on would be an easy change out. The truck started fine after install, and ran down the road ok. Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. #1. Replaced and gapped to .45 all spark plugs. He knows his stuff, gets back quickly to you, etc. Mike. The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. I was thinking aluminum heads would run it up closer to 5,000 rpm. The target A/F value based on load or MAF cfm, and engine speed. The new throttle response was significant,fuel saving and gave me a turn key cold start.Still I can't have an idle speed under load and a turn key warm start. Price Point: $$$. Sadly, no. Was in marine engineering for years. So I bought the progressive linkage but you then have . 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. Joe, where did you end up installing the o2 sensor on your setup? May 1, 2018 They want you to angle it to keep it from fouling. Prime cannot be adjusted on this old unit. Restore or update your Holley Sniper EFI System with this WBO2 Sensor 17025 Bosch 554-155 Holley. Put an end to cold start issues, hesitations, vapor . Description. 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, Holley sent him a new one for free. Then having an experienced tech from a local dyno speed shop ride in the boat as you run the power up and down, making notes. Anything else is going to be a frustrating recipe for for failure. A forum community dedicated to performance boat owners and enthusiasts. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. Holley sniper issue on newly rebuilt motor, Holley Sniper with Duraspark and timing control. Vega$69. $108.95.
Holley EFI 534-49 Holley Oxygen Sensor O2 Bung Weld-In Style 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. You must log in or register to reply here. holley sniper efi Holley Sniper EFI Self-Tuning Master Kit - Black Ceramic Finish $1,475.95 Part# 550-511K holley efi 100 PSI Stainless Pressure Sensor $155.95 Part# 554-102 Are you waiting to convert your carbureted vehicle to Sniper EFI, but don't like the idea of mounting an external fuel pump? The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. What I don't want to do is spend more money on the headers than on the fuel injection upgrade and new propeller set. . Holley part number 554-155. I had the pink ecu signal wire connected to a bullet connector on the passenger side . The in tank pump is quieter, will normally run cooler and should last longer. But you've found the right one for your Holley Sniper EFI System OR your Terminator X EFI System. - You are currently viewing the forums as a GUEST. No worse than taking the reading in the intake manifold cross over. Was told by holley tech support to make adjustments to the fuel prime percent and multiplier settings, played with those with no major improvement. A 90-degree V-6 has three shared crankpins set 120 degrees apart. You'll also notice that the firing order is 1-6-5-4-3-2. To take advantage of all the site features, please take a moment to register.
Marine O2 Sensor Adapter Plate - Affordable Fuel Injection Sensors that are installed in an exhaust must be connected to a properly Here's the pic of the location with my header. Thinking about this I think this will work very fine! Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Sep 14, 2021. Holley EFI has the solutions you need to get your project up and running better than ever! Capability Range: Moderate *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. I'll let you know how it works out. (If I am incorrect I heartily invite your comment at the bottom of this article!) Add To Cart. Holley recommends a 3/8" fuel supply line. :-), I started using OMC and Volvo Penta pumps for my conversion. Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. Now the lower cost Holley Sniper advertised for March 31 2016. Tech Resources. I installed a holley sniper kit. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. In Stock. Fortunately, it turns out there are some options. 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 particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? Affiliate. Sniper EFI 4bbl Marine. EFI Systems based on Holley's world-class Dominator and HP ECU's. Holley Sniper Installation Supplement Please note, a Holley Sniper instruction manual, as well as some small parts that come with the . It flows 850 cfm and can support up to 650 horsepower. 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. Yes, this is an old thread, but it's an old unit.
We Test It: Holley's New Sniper EFI - MotorTrend Part Number: 510-554-155. Mine is right where Steamers is, and works well with my AFI TBI. Only show this user. Otherwise I have to check for a place in my gasoline tank to put the lines in. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. YES! On a side note: Im getting 4200 rpms at 5000 elevation with stock heads. 2 Reviews. I'm looking for some more practical and scenario-specific advice; that's one small piece of it. Part # 554-155. Car runs perfect . They have been working out well for a few years now. Newer ECMs have all the options to configure these functions. the engine not running. Sponsored Links (REGISTERED USERS DO NOT SEE THIS POST/AD! About your only location is in that short area from the log to the port face. Holley Sniper O2 sensor replacement. I was mocking it up at the time. so far so good love the smooth power and easy starts.
EFI Swap | Shamrock Boat Owners' Club Pink switched power wire, this needs to be connected to a point that is 12V in run and while cranking. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. Without the engine running, AFR will read 35.6 The fuel pump will run off a relay in the sniper harness (blue wire) pink wire gets switch/run power to the relay. 3. Part# 550-511. From time to time we receive phone calls from individuals who are interested in converting their carbureted boat motor to fuel injection. Sent unit back to Holley. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. 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. The wiring was a bit of a mess. I am a competent mechanic and I have checked all the usual suspect items. Advanced throttle body injection systems capable of transmission control and more. Add To Cart. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_.
running holley sniper without o2 sensor - dowdcreative.com EFI is the wave of the future. I had an injector fail after a month of running and called the tech line who helped me figure that out. The truck started fine after install, and ran down the road ok. 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. In the end I ended up using a Fuel Control cell made by Pleasure Craft Marine for their 351W engines. Q1. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas!
Holley sniper efi error 21 - bqfoki.lesthetiquecusago.it For a better experience, please enable JavaScript in your browser before proceeding. You should then have at least 18-24" of pipe after the sensor. Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. It's fast, simple and absolutely free. I tried holley tech support, no answer and put on hold for hours. Anyone ever converted a 1987 3.7L 4cyl Mercruiser engine to EFI. AFR was 19 area. You must log in or register to reply here. Its the Holley Pro Jection TBI mentioned by the above poster. I will let you know what happens. Can more detail be provided? Can anyone share their experiences with this type of setup? It looks like another season has come and passed by without the answer you wanted on this.I am impressed that you made the leap into marine fuel injection but you have experienced the same problem that everyone else who has tried this has faced. Add To Cart. 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. Phil is right. I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. I did--- Save your money and piece a fuel it together. The Tech Tips and discussions are also great! If the indicator reads "LOW Err" double check the connection to the CTS. It's a compact HP pump and cooler assembly. For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. 10 min read Video. 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. If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. The throttle body has a built in fuel pressure regulator set at 58.5 psi. 29.
Holley Sniper first start No o2 sensor - YouTube Search for O2 Hotel Taipei Main Station discounts in Taipei City with KAYAK. $5 Off Your $100 Mobile App Purchase . And it is timing that is equally critical to best performance and fuel economy. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. Bolt-on carburetor style EFI for your classic car or truck. I have not yet got it figured out. Some of the landlubbers who are reading this may not realize that many inboard engines utilize what is called a wet exhaust, pushing the water from the engine block into the exhaust and then back into the lake/river/sea on which they float. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. 2014 FJ Cruiser - White - 4X4 - Loaded - .
Engine Startup Tuning for Sniper and Terminator X Stealth Owners RPM going up and down , miss firing and backfiring. Free ground shipping regardless of order size! 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.
Holley EFI 554-155 Holley EFI Oxygen Sensor My hand is holding the connector to the sensor. And the relay and fuse were mounted along the firewall. We can hear the initial fuel spray into the body, but it appears that its not enough to start the engine while hot. I've installed several of these adaptive EFI's on cars with great success. 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. 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. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle, By Corey A on June 4, 2021 | Verified Owner. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. 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. The O2 sensor burned out immediately.
Sniper EFI - Holley 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. 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. Yes, this is going to be an added expense, however, it will help guarantee your success. Innovate Motorsports HBX-1 Bung Extender. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. This is great information that can only get you closer to an ideal solution. Install the throttle linkage to the Sniper EFI throttle body. 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. I have not gone back in to try to fine tune them.
Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 Get fast, Free Standard Shipping on orders over Summit Racing Equipment from $99 -- no shipping, handling, or rural fees! 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. You really want a bigger engine. EFI EFI kit electronic fuel injection. quick fuel. GA - As close to the lake as I can afford A powerful, MICRO BlueTooth in dash audio solution! It is better to remain silent and be thought a fool than to open one's mouth and remove all doubt. Mark Twain, The goal in life: To die young as late as possible. . Also, with Headers you loose 600 to 700 degrees between Head and bottom collector, you don't want to read that loss. For the most part, the small harness is plug-and-play. Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. Maybe going all the way to the front is the way to go?
#HM206 - ADAPTOR, O2 SENSOR for Marine use - Howell EFI Conversion The test run was great, they have never run so well even when they were new with carbs. 74 FJ40 confined to the swamp. 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. Items 1 - 21 of 21 Items. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. I found this in the instruction manual for the older commander 950 system. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? Why? To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck.
Installing Holley's Sniper EFI Quadrajet System on a 1970 Corvette There are five significant plug connections to make from the throttle body: Plug into the oxygen sensor. Are you holding your RPMs back with the MSD for some reason? Specs. 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). The original Holley Sniper instructions are available on the Holley website if you have misplaced them. so simple check first, whats the fuel pressure?
Add to Cart . Marc, you don't mention which system you installed but the Holley systems are fully configurable. I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. If he wants to run in closed loop and have the system adapting to conditions at all times, the minute he fouls he is dead in the water. It is possible for the ECU to have an internal failure that can kill O2 sensors. I think I could run more boost but it's a real hand full right now. This is the 02 sensor adapter I used. The reason I say this is that nowhere in this discussion is the fact that none of these systems are are handling the timing on the fly. . Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. 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.
O2 sensor failure on a Holley Sniper EFI - YouTube 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. All sensors are tested to ensure they accurately report critical engine data to the . The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. - The sales brochure refers to Integrated Ignition Timing Control and Coil Driver. This step is only for those installing their Super Sniper EFI on top of a draw-through or Roots-style blower. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. To simplify . Customer Rating: 4.3 out of 5 stars: 4.5 out of 5 stars: I just discovered that was the case with my Fitech. Bolt on 4150 Flange Carburetor Replacement. We use cookies to enhance your experience while using our website. Add to Cart . As I have since added above, the Sniper simply isn't going to be the system to use to tackle this problem. Brand: Holley EFI Emission Code: 4 . I thought about adding some sort of extra protection but never did. However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. It will flood itself out and won't start back, just crank and crank. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. Idle and off-idle performance (particularly as the engine goes into gear.) i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. I installed one also on mercruiser 260 hp. Holley EFI has the solutions you need to get your project up and running better than ever! All times are GMT-6. I want to remove the old fuel injected Mercruiser factory EFI on both engines because they have begun to be troublesome. They are the only ones got me a holley usb to can cable fast.
Holley efi behavior with bad o2 sensor, safety feature Just a rumor. It flows 850 cfm and can support up to 650 horsepower. This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right?
Not always the case with a boat. Sniper EFI Releases new Stealth 4150 Models! On my system, I machined in the O2 sensor right between the snail and the manifold of a . Went with around .525 lift, 270 duration on a 114 LSA and the car was sucking vacuum like a new hoover.
Installing MegaSquirt in Parallel With the Stock ECU (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. Other? It only runs rich on start up for a second due to the prime, after start it runs great. 2023 Holley Performance Products, Inc. All Rights Reserved. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. If there's anyone willing to read a bit and offer advice about what to do when doing a top-end swap (when you may be in a scenario with a new top-end that's the EFI isn't calibrated for AND you can't have an WBO2 sensor connected), please let me know. I will be starting mine up this month, I hope it goes well, good luck to you. I do agree if he can get it tuned prior to fouling he can lock that tune and run in open loop. Then they had it repaired and back to me in 5 business days. Restore | Make | Philosophize | Eat | Drink | Be Happy | Let's Go Brandon! The Sniper will do that. Without Headers Steamers location (above) is perfect, up close to the engine where you . There was a 1.5 point difference in afr between banks. Stock manifolds? Maybe my manifolds leaked the inside between the snail and the log?? We also use content and scripts from third parties that may use tracking technologies. I am concerned about the O2 sensor consideration, but in the end isn't the carburetor situation open loop?