I've dunked mine lots of times. Great Article. 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. Customer Rating: 4.3 out of 5 stars: 4.5 out of 5 stars: The adapter will be fastened in both metal parts so that no water will reach the O2 sensor. Also the progressive link. Holley Sniper O2 sensor replacement. 2014 FJ Cruiser - White - 4X4 - Loaded - . well I have installed the Sniper on my 460 KEM (Ford) marine motor. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? MAP Sensors. 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! Add To Cart. The spark must be manually tuned. $119.95. For a better experience, please enable JavaScript in your browser before proceeding. 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. quick fuel. For a better experience, please enable JavaScript in your browser before proceeding. 2023 Holley Performance Products, Inc. All Rights Reserved. You are using an out of date browser. 5. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. When I went to Holley HP, I found an adapter by Innovate that is designed to draw air out the exhaust stream and away to the O2 sensor. (If I am incorrect I heartily invite your comment at the bottom of this article!) Restore or update your Holley Sniper EFI System with this WBO2 Sensor 17025 Bosch 554-155 Holley. Did you use the Holley fuel pump and have you had any issues with it? I am a competent mechanic and I have checked all the usual suspect items. 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. Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. It's fast, simple and absolutely free. Add to Cart . 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. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . Even if you are the sort to sort of shrug off safety regulation, consider that if there is an accident that results in a loss and an investigation, failure to follow applicable USCG regulation could result in either financial or legal liability, not to mention the rejection of insurance claims. You should then have at least 18-24" of pipe after the sensor. 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. 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 . Phil is right. Followed all the instructions to the letter. View Holley Sniper EFI Self-Tuning Kit - Shiny Finish. But for just over $10 and two simple configuration changes you can switch to a progressive linkage that opens only the two primary barrels at first and then brings in the secondary barrels at a later point. I have tried several different settings to get it going, no luck. The target A/F value based on load or MAF cfm, and engine speed. My boat is still in winter storage. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. I've been building a TBI system from GM parts to use on a 1987 Wellcraft with the Mercruiser 4 cylinder engine. 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. It doesn't even mean that you can't do it. As far as packaging goes, one comes in a Bosch box, the other in a Holley package. I'm guessing by snail, that's another name for the riser? New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. Bolt-on carburetor style EFI for your classic car or truck. Add To Cart. If you let it cool down again, does it start up fine? Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. I was thinking aluminum heads would run it up closer to 5,000 rpm. 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. But MAP sensors are very easy to physically implement and are inexpensive. Capability Range: Professional I will be starting mine up this month, I hope it goes well, good luck to you. It has about 18 hrs to date and is working great. Douglas Cline. As always, your results may vary and batteries not included. 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. 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. The clamp-on that came with mine wasnt a good fit on my 2" pipe. 2 Reviews. Capability Range: Professional You must log in or register to reply here. 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. Other countries likely have simmilar approval processes for marine engines. *Possible delays due to Covid-19 click for more information. Thanks for the compliment--we look forward to your feedback! The adapter does require the removal of the manifold and some machining but it allows the O2 sensor to be placed into the exhaust flow but protects it from the water exiting the block. Sniper EFI Releases new Stealth 4150 Models! As far as a sensor goes, absolutely nothing. 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. 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. After discussing it in this thread and talking with Holley's tech support, I decided . I have a boat with twin 3.7 Mercruisers. Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. . Thanks for that, Danny. i thought about it, but after $3400 on an EFI alone and an entirely new rigged boat Im having a hard time forking out another 2000 for an exhaust when I may just do an open loop My buddy machined up a set of spacers I sketched out for him. 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 Tech Tips and discussions are also great! Will I be able to control my ignition timing with the Sniper? Price Point: $$$. Part Number: 510-554-155. Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish. I will change and be using an in-tank pump when I install the new 120 gallon tank this winter. I am just now ready to do the tuning this weekend. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. The Sniper EFI throttle-body drops in place of your . Staff Writer. I didn't read all this, but yes, the EFI system can be run without a WBO2 sensor. . Followed all the instructions to the letter. replaced my original terminator x sensor that was mounted in an exhaust that took on some water and killed the original sensor. 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. A 90-degree V-6 has three shared crankpins set 120 degrees apart. Sep 14, 2021. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. Holley EFI Usb/Can Harness, Sniper Tbi. After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. My question is concerning what happens a year later, when I have a top-end swap . Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. Items 1 - 21 of 21 Items. This completes the basic installation of the Holley Sniper EFI 4150 Super Sniper 1250/650 kit. 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. Welcome to Club Cobra! 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. Without Headers Steamers location (above) is perfect, up close to the engine where you . Part# 50-5009QFT. Part# 554-155. holley efi. The Sniper EFI throttle-body drops in place of your . Holley Sniper EFI Oxygen Sensors 554-155 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. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Are you holding your RPMs back with the MSD for some reason? When it did keep running, the headers all started to smoke. http://s621.photobucket.com/albums/tt291/Mark11530/?action=view¤t=MAH05771.mp4, http://www.holley.com/data/Products/Technical/199R10226.pdf. CTS (Coolant Temperature Sensor) - Reads engine temperature. They have mods that help. I think installing a wide band O2 sensor in the manifold(s) is a great idea. Stock manifolds? The truck started fine after install, and ran down the road ok. 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. #3. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. A third option would be to run your EFI system without an O2 sensor at all. 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. Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. Replaced and gapped to .45 all spark plugs. 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. I thought about adding some sort of extra protection but never did. I've got the Howell EFI adapter installed in the riser of some standard Inboard Manifolds and it works great. 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. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). The very front would be the safest place. JavaScript is disabled. Brand: Holley EFI Emission Code: 5: Material: . This doesn't mean it can't be done. I don't have enough experience with marine applications to know exactly what it will take to solve this. He had one there that was run on a dyno then the fuel map was set and shipped back. EFI Systems based on Holley's world-class Dominator and HP ECU's. I hope that the next F/2F header is more O2 sensor friendly. If I am reading your post correctly you are using two separate o2 sensors when using headers ? VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. This really applies to any O2 sensor regardless of EFI system. Follow USCG rules about materials and fittings. Yes, this is an old thread, but it's an old unit. 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. You are using an out of date browser. The wide band O2 sensor is required for initial running and calibration. This doesn't apply to race boats. Do you recommend in-tank or external fuel pump? Here's the pic of the location with my header. Menu. But this also makes me wonder what you did for the O2 sensor. Could show a lean condition when in fact it really isn't. Dec 28, 2016. Holley's self learning system is a blessing and a curse. I installed a holley sniper kit. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. My Lightnings have a bung welded through the water and into the dry exhaust area at the collector. Are you running the entire system? 534-199. I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. Throttle body mounted ECU - no extra boxes to mount. Was in marine engineering for years. The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. - You are currently viewing the forums as a GUEST. It's a compact HP pump and cooler assembly. 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)? Does an yone have a pic of the O2 sensor in their exhaust? Sniper EFI 2300 Marine. I have searched thru the forum as much as I can, with not much luck. Sniper EFI Installation Guide. The Sniper EFI master kit contains the most complete EFI fuel system on the market. The new Exhaust manifolds will have wideband O2 bungs for tuning. Visit their website for more details. 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. Yeah, it may sound hokey to some, but is just one option to solve the issue where you are and with what you have. $108.95. So please, If you have problems registering or can't log into your account, please. 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. 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. :-), I started using OMC and Volvo Penta pumps for my conversion. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. Holley part number 554-155. Sort. Bolt-on carburetor style EFI for your classic car or truck. 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. Please consult the Holley Sniper full manual and use this guide for supplemental clarification. Currently has 2 bbl carburetor and mechanical distributor, mechanical fuel pump for 165hp. It's hallmark is its simplicity--but in this case it is also it's shortcoming. Add to Cart . Put an end to cold start issues, hesitations, vapor . If the indicator reads "LOW Err" double check the connection to the CTS. 74 FJ40 confined to the swamp. What motor is this on? As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. I've seen O2 sensors in water jacketed headers that have worked fine for years. I installed it without O2 sensor, adjust on the fly. Shop Oxygen Sensors at Summit Racing. 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. It will crank and run great for 2-15 seconds then die. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Has anyone run an O2 sensor in an EFI on a marine engine? However, there's a good chance you will want to add a wideband O2 sensor at some point, in order to give the MegaSquirt more tuning information. I'm 3" down from the bottom of the flange to center of bung. . Installed the sniper/MSD combo on my mildly built 460 KEM. I really dont want any issues on the whitewater lol I'm using the NTK sensor. Holley recommends a 3/8" fuel supply line. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. Oops, after that it cranked right up.Idle was set to 950rpm so after the vid was cut off I lowered it to 820rpm and it was purring like a kitten.EFI for dummies. Fortunately, it turns out there are some options. away. Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. I will keep the replacements as spares. George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. On my system, I machined in the O2 sensor right between the snail and the manifold of a BBC. turn on the ignition.but do not start the engine. You have to angle it to help the throttle cable get around the booster. Once the tune is complete, the O2 sensor can be defeated or . Ran about 5 seconds and died. . This step is only for those installing their Super Sniper EFI on top of a draw-through or Roots-style blower. This was for MPFI. Anyone ever converted a 1987 3.7L 4cyl Mercruiser engine to EFI. They are about 4 inches long, in-line between the log and manifold. Air-Fuel Ratio (AFR) - The most common reference term used for mixtures in internal combustion engines. But you still risk a little water running back at low Rs. 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. : For registered members this ad will NOT show. The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. 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. We use cookies to enhance your experience while using our website. Much of the system is encased right inside the throttle bodyand that includes the ECU. With a bad TPS you will have to manually prime to try and get it . I installed a holley sniper kit. I recently installed the sniper setup on my stock 71 duster 340 4 speed. Since the Sniper install, I encountered my second O2 sensor failure so I thought I would try the "Innovate Bung Extender" recommended by a few folks here. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. Apr 13, 2017. with the extension. So I bought the progressive linkage but you then have . But it is going to be a little tricky. Product Q&A . Pricing was reasonable, shipping was prompt and Chris helped me with a wiring question during my install. Innovate Motorsports HBX-1 Bung Extender. Sniper EFI 4bbl Marine. I found this in the instruction manual for the older commander 950 system. Specs. Thinking about this I think this will work very fine! the engine not running. Was told by holley tech support to make adjustments to the fuel prime percent and multiplier settings, played with those with no major improvement.

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