Copyright 2022 Holley Performance Products, Inc. All right reserved. Once the tune is complete, the O2 sensor can be defeated or . Found out that it was due to rfi/emi. I installed one also on mercruiser 260 hp. While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. We use cookies to enhance your experience while using our website. For gourmands, night markets not only offer scrumptious small . Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. Aug 17, 2013. Precisely Adam. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. $132.95. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. Bolt-on carburetor style EFI for your classic car or truck. 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. It needs the tip pointed down at least 10 degrees from horizontal and at least 15 degrees from vertical I prefer about a 45 degree angle from horizontal. Are you running the entire system? My boat is still in winter storage. Sniper EFI 2300 Marine. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? I will change and be using an in-tank pump when I install the new 120 gallon tank this winter. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! The World's largest The Sniper EFI throttle-body drops in place of your . (probably with the edelbrock marine 2506 intake). THen you have to determine if you want 02 readings from one cylinder, or in the case you just mentioned mostly one cylinder, average of 4 cylinders on one bank or the other, or average of all 8 cylinders. Sensors that are installed in an exhaust must be connected to a properly This really applies to any O2 sensor regardless of EFI system. Sensors: Fitting: Threaded O2 . Let me know how I can be of assistance. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. #3. Fortunately, it turns out there are some options. The boat underway acts very much like a water brake dyno I strongly believe that a well broken in engine in good condition can stand a much more critical tune w/o issues and deliver almost the same fuel economy as the proposed EFI conversion. I don't have enough experience with marine applications to know exactly what it will take to solve this. Followed all the instructions to the letter. Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. . In Stock. There is no problem getting this tuned and then running open loop. If this is a first time effort, find a tuner in your area with marine experience. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. I also capped off the regulated return line with a hose, clamps, and chamfering bit. Stay up to date with the latest releases, events, promotions and more. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. 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. Will I be able to run both systems off of one fuel pump? 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. I have not gone back in to try to fine tune them. . Anything else is going to be a frustrating recipe for for failure. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. The Fora platform includes forum software by XenForo. On a side note: Im getting 4200 rpms at 5000 elevation with stock heads. What I don't want to do is spend more money on the headers than on the fuel injection upgrade and new propeller set. The spark must be manually tuned. In the end I ended up using a Fuel Control cell made by Pleasure Craft Marine for their 351W engines. No worse than taking the reading in the intake manifold cross over. . Well an update on the Sniper install. Initial Calibration in Basic Configuration. . 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. Ran about 5 seconds and died. I will keep the in-line pump for a spare. 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. Did you use the Holley fuel pump and have you had any issues with it? I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. You are using an out of date browser. We may earn a small commission from affiliate links and paid advertisements. I've got the Howell EFI adapter installed in the riser of some standard Inboard Manifolds and it works great. Add to Cart . The new Exhaust manifolds will have wideband O2 bungs for tuning. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. Howell indicates that this adapter was designed for the Chevy type Mercruiser manifold but that it should work on any similar marine wet manifold. May 1, 2018 They want you to angle it to keep it from fouling. -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? holley efi. We can hear the initial fuel spray into the body, but it appears that its not enough to start the engine while hot. 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. 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. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. Prime cannot be adjusted on this old unit. The throttle body has a built in fuel pressure regulator set at 58.5 psi. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Anybody got a good 270hp 350 tune yet?I installed sniper efi on my boat runs good but feel like the wot should be better need to get the sniper controlling spark is my thoughts the old thunderbolt is either not great or timing wasn't right when I bought the boat but she runs great I just think this engine has more in it then I'm getting out of it at this time any tuning and timing advice would be great considering I'm awesome with carb n hei diet but new to efi and boat timing curve but not an idiot so I say. Apr 13, 2017. with the extension. After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. Holley part number 554-155. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. 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. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? Holley EFI Oxygen Sensor. Phil said water would still get up over the snail and knock out the sensor. Add to Cart . That sounds like one solution. This combines the Sniper EFI Self Learning Throttle Body, with an easy to install In-Tank Retrofit Returnless Module, 20 ft of Earl's Vapor Guard Fuel Hose, and the required fittings. But you've found the right one for your Holley Sniper EFI System OR your Terminator X EFI System. In the case of the car, you can generally get out and walk (run?) (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). The O2 sensor burned out immediately. The problem occurs when an excessive amount of oxygen makes its way from the intake port directly into the exhaust at idle and low engine speeds because of overlap. i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. Yellow Cold! 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. ), 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. 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. I've installed several of these adaptive EFI's on cars with great success. In Stock. As far as spark control, the Sniper will let you tune those 4 points, nothing else will. In order to do this, it heavily relies on proper O2 sensor placement. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. I was thinking aluminum heads would run it up closer to 5,000 rpm. Attempted to make a parts run in my 1990 Third gen Chevy Camaro with a small block chevy 350 with flowmaster mufflers.I believed the issue in this video to b. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. I am just now ready to do the tuning this weekend. On my system, I machined in the O2 sensor right between the snail and the manifold of a . : For registered members this ad will NOT show. 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. Was in marine engineering for years. Part # HM206. Items 1 - 21 of 21 Items. Sort. turn on the ignition.but do not start the engine. It's hallmark is its simplicity--but in this case it is also it's shortcoming. That's great--we look forward to your results! 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. I was mocking it up at the time. Replaced and gapped to .45 all spark plugs. Then turn the engine off and "lock in" the tune in a non-feedback loop mode, and quickly remove the headers and wash them off to prevent damage and then swap to the manifolds, but that would honestly be a huge PITA. I 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. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. Thanks for the heads up. Supports up to 650hp with Four 100 Lb/Hr Injectors! This page was generated at 08:35 AM. Capability Range: Professional Still needs a EFI pump and return line. All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. I recently installed the sniper setup on my stock 71 duster 340 4 speed. Maybe going all the way to the front is the way to go? Here's the pic of the location with my header. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Sniper EFI 4bbl Marine. Then they had it repaired and back to me in 5 business days. 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. They are about 4 inches long, in-line between the log and manifold. For a better experience, please enable JavaScript in your browser before proceeding. Sniper EFI 4500 Marine. I have also picked up another .5 gallons per hr to about 9.25 gph. I purchased the Holley HP MPFI system and went to the lake with it. I mounted it here attempting to protect it from the deep water I play in and from lots of branches I encounter. Hello Chris,Ontario's boating season is about to launch for another year.Do you have any good news to add to your above article, any new marine friendly TBI products?In '08,I installed a Holley 21-700 TBI with the o2 mounted in the manifold to Holly specs. All sensors are tested to ensure they accurately report critical engine data to the . Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. 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! Use a return fuel line. Then dialed back the cranking fuel quite a bit and that seemed to help some, but still having ongoing issues. GA - As close to the lake as I can afford A powerful, MICRO BlueTooth in dash audio solution! The Sniper EFI could very well be one of the easiest to set-up fuel injections systems ever. When the Sniper EFI System received USCG approval at the end of 2018 this presented some hope for boat owners. The ones in the Bosch box come without warranty. The Tech Tips and discussions are also great! Holley Sniper EFI Wideband Oxygen Sensor. Add To Cart. Part Number: 510-554-155. Look at the bottom.. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. Bolt-on carburetor style EFI for your classic car or truck. PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to pull the sensor out of the exhaust. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . Other? So there is at least some probability of success. 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, This Video Shows Ideal O2 Sensor Placement! YES! Q1. 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. Followed all the instructions to the letter. Specs. To simplify . I want to register an account for free right now! Joe, where did you end up installing the o2 sensor on your setup? Note the temperature sensor mounted on the back of the driver side head in the above photo. From time to time we receive phone calls from individuals who are interested in converting their carbureted boat motor to fuel injection. Holley EFI Oxygen Sensor. 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. 2. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. Introducing Sniper EFI Master Kits, with a Returnless Retrofit Fuel Module. Other countries likely have simmilar approval processes for marine engines. But you have to get it tuned. Sadly, no. 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. Sniper EFI Installation Guide. No matter what I do, it will not start. I want to register an account for free right now! Good luck! My question is concerning what happens a year later, when I have a top-end swap . The truck started fine after install, and ran down the road ok. 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. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. 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. All of the wiring begins at the throttle body and connects outward from there. well I have installed the Sniper on my 460 KEM (Ford) marine motor. The engines are rated at 170 hp each. Posted By : / actual instructions in flowcharting are represented in /; Under :nose exercise before and afternose exercise before and after And who can blame them? It turns out that this is a common problem with the Sniper EFI install on vehicles with a manual transmission. 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. $5 Off Your $100 Mobile App Purchase . 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. The Sniper will do that. By Joshua C on August 10, 2021 | Verified Owner, Worked right out of the box. Some parts are not legal for use in California or other states with similar regulations. It flows 850 cfm and can support up to 650 horsepower. 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. Holley Oxygen Sensor O2 Bung Weld-In Style; Larger Image. 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. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Advertising . Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . Why? I am a competent mechanic and I have checked all the usual suspect items. 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. You can selectively provide your consent below to allow such third party embeds. Please consult the Holley Sniper full manual and use this guide for supplemental clarification. I have a 74 bronco, 302, mild cam. If you let it cool down again, does it start up fine? 10 min read Video. I have about 30 hrs on the unit and it just keeps getting smoother with every hr of run time. Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. . Have you visually verified that all your injectors are spraying? It has about 18 hrs to date and is working great. . Sorry for the late reply. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. Wideband Oxygen Sensor Extension Cable. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. After discussing it in this thread and talking with Holley's tech support, I decided . Add To Cart. 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. The other thing I want to overcome is the fuel return line; my harbor master says that I can connect my fuel return line to my CAV (lucas) gasoline filter, it has 4 connection, now only 2 are used. No one cares about your buddies old antiquated garden hose technology. 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 . Or maybe I could just use a piece of spare/junk exhaust tubing, and bolt it to the manifolds and add a weldless O2 bung to it. Vega$69. $119.95. You'll also notice that the firing order is 1-6-5-4-3-2. In a horizontal or if pointed upwards it can collect exhaust condensation liquids upon start up. 02 sensors are very heat sensitive, and can detect an exhaust pulsation in a single Header tube, that's why we always wanted to position the sensor into at least 2 opposite firing tubes we running Headers. Conditions when closed loop o2 should be turned off. Even though you now have the USCG-approved Sniper EFI System as an option for your new EFI System you're not quite out of the woods yet. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Also some tips on preventing O2 sensor damage Sent unit back to Holley. Sep 14, 2021. I have a boat with twin 3.7 Mercruisers. Advanced throttle body injection systems capable of transmission control and more. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. But it is going to be a little tricky. Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. I have a 74 bronco, 302, mild cam. Sniper EFI 2300 Marine. 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. 5. USCG approval is certainly worth careful consideration, as being on a boat that catches on fire is even more serious than being in a car that catches on fire. Wideband Oxygen Sensor Extension Cable. No prime, but a second later it's ready to crank 'normally'. Warranty Information. . so simple check first, whats the fuel pressure? It appears that its a tuning issue. It may not display this or other websites correctly. I know from some of the other posts, there have been WBO2 sensor issues. I just discovered that was the case with my Fitech. It only runs rich on start up for a second due to the prime, after start it runs great. Some logs have water up to just short of the port. Seems to LEARN much faster than the Fitech did. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Currently has 2 bbl carburetor and mechanical distributor, mechanical fuel pump for 165hp. Capability Range: Professional The fuel module is self contained with water jacket cooling and contains the low and high pressure pumps. For now I have a genuine bosch O2 and Standard Automotive TPS installed. Purely coincidence about the '2300' number. Running? I have a 74 bronco, 302, mild cam. Holley EFI has the solutions you need to get your project up and running better than ever! Has anyone run an O2 sensor in an EFI on a marine engine? excessively rich mixtures), Mechanical shock (e.g. Still trying to find more info on electronic conversion, only found Pertronix replacement for points so far.. What TBI, fuel pump, sensors and ECM computer are you using? is donald smith still alive; julie grant court tv cheerleader I installed the adapter and elbow so it's at an angle above the entry point. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Distributor and ignition box? I think installing a wide band O2 sensor in the manifold(s) is a great idea. EFI Systems based on Holley's world-class Dominator and HP ECU's. Its the Holley Pro Jection TBI mentioned by the above poster. $43 per night (Latest starting price for this hotel). 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? I found this in the instruction manual for the older commander 950 system.
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