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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. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. If the indicator reads "LOW Err" double check the connection to the CTS. non biased Shelby Cobra related site! Spray a rag down pretty good with brake cleaner. New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. A forum community dedicated to performance boat owners and enthusiasts. . A 90-degree V-6 has three shared crankpins set 120 degrees apart. O2 Sensor Mounting: The O2 needs to be mounted 6-8" after the merge in the header collector. Add to Cart . Hooker BlackHeart Oxygen Sensor O2 Bung 2.25" Clamp-On Style, Hooker BlackHeart Oxygen Sensor O2 Bung 2.5" Clamp-On Style, Hooker BlackHeart Oxygen Sensor O2 Bung 3.0" Clamp-On Style, Holley Oxygen Sensor O2 Bung Weld-In Style. The throttle body has a built in fuel pressure regulator set at 58.5 psi. I know from some of the other posts, there have been WBO2 sensor issues. I hope that the next F/2F header is more O2 sensor friendly. It may not display this or other websites correctly. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Part# 534-199. Capability Range: Professional That is defacto step one in trouble shooting fuel injection systems. Capability Range: Advanced My Lightnings have a bung welded through the water and into the dry exhaust area at the collector. On my system, I machined in the O2 sensor right between the snail and the manifold of a BBC. Not always the case with a boat. I have a 74 bronco, 302, mild cam. With a bad TPS you will have to manually prime to try and get it . Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. I installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? Fine tuned the timing to 12-15 degrees. He had one there that was run on a dyno then the fuel map was set and shipped back. You shouldn't feel too bad about that lack of knowledge, because many boat owners either don't realize that the moisture present in their wet exhaust manifold will kill the wideband O2 sensor required by an EFI system. Car runs perfect . Marc, you don't mention which system you installed but the Holley systems are fully configurable. Fuel economy went from 12.5 to 13.5 gph to 10 gph. $43 per night (Latest starting price for this hotel). Sniper EFI - Holley . Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. Went with around .525 lift, 270 duration on a 114 LSA and the car was sucking vacuum like a new hoover. Replacement Sniper and Terminator X O2 Sensor, This part is legal for sale or use on Racing Use Only Vehicles. You must log in or register to reply here. Capability Range: Professional running holley sniper without o2 sensorplymouth township mi police scanner. I would back-burner the ignition control questions until you get the fuel injection working. Make sure to put anti seize on the threads. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Sniper EFI Installation Guide. 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. Was told by holley tech support to make adjustments to the fuel prime percent and multiplier settings, played with those with no major improvement. It doesn't even mean that you can't do it. 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. 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. It could be an instant fix. 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. 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. It's hallmark is its simplicity--but in this case it is also it's shortcoming. Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 5. I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. *Possible delays due to Covid-19 click for more information. Capability Range: Moderate I found this in the instruction manual for the older commander 950 system. Sniper EFI 4bbl Marine. 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. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. 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. This doesn't apply to race boats. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. 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. Below are the most common sensor usages in a Holley EFI system, however pressure transducers can be applied to any form of pressure in an automotive system, from oil pressure, to exhaust back pressure, and the data gathering usages in racing can get quite creative. When it did keep running, the headers all started to smoke. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. Running? Holley sniper help!!!! | ClassicBroncos.com Forum I will keep the in-line pump for a spare. It works great where its at. Sniper EFI Quadrajet Marine. EFI is the wave of the future. . If this could be disabled it would be much better. Holley sniper issues - 1969-70 Technical Forum - 69stang.com and (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). Categories. (REGISTERED USERS DO NOT SEE THIS POST/AD! That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Brand: Holley EFI Emission Code: 5: Material: . This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Everything about the fuel prime shot can be adjusted. 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. $119.95. I will be starting mine up this month, I hope it goes well, good luck to you. All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. Bolt-on carburetor style EFI for your classic car or truck. It works fine. Holley Sniper Installation Supplement Please note, a Holley Sniper instruction manual, as well as some small parts that come with the . Pink switched power wire, this needs to be connected to a point that is 12V in run and while cranking. Emissions. 2014 FJ Cruiser - White - 4X4 - Loaded - . In the case of the car, you can generally get out and walk (run?) Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. 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. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Full product line and accessories at excellent pricing. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. One workaround was to leave it in gear and slow to a stop and push the clutch as RPMs drop . Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. I am happy with Holleys no hassle replacement of the parts. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. To those who have installed the Sniper EFI units, please post up some photos of where you tapped the exhaust line to install the Oxygen Sensor's weld bung. The first option is to just buy the injector body and the controller with the wiring harness and sensors. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. Holley sniper issue on newly rebuilt motor, Holley Sniper with Duraspark and timing control. Other? Anything else is going to be a frustrating recipe for for failure. Boats don't cruise at 60mph up and down hills. Add To Cart. Fuel prices at the marina are usually about a dollar a gallon more than at the local Racetrac/Wawa/wherever, and even more if you wisely opt for ethanol-free fuel. 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. I will keep the replacements as spares. If you let it cool down again, does it start up fine? Then operate open loop with a fuel map\Timing curve.I am interested in the capabilities of the Sniper product (4 injector) in a Marine application.. Register now for free!) Sorry for the late reply, Douglas. May 19, 2021. 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. Thanks guys. Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . My boat is still in winter storage. Once the tune is complete, the O2 sensor can be defeated or . The included fuel system places a 340LPH fuel pump in the tank, which can easily be . Then they had it repaired and back to me in 5 business days. HP comes from torque and rpm and rpm breaks things and increases wear. We may earn a small commission from affiliate links and paid advertisements. Holley Sniper EFI - Page 3 - Offshoreonly.com I have a 74 bronco, 302, mild cam. I recently installed the sniper setup on my stock 71 duster 340 4 speed. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. 4. Super helpful and knowledgeable. Holley Oxygen Sensor O2 Bung Weld-In Style; Larger Image. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. Sorry for the late reply. the engine not running. Do you also recognize that the O2 sensor that is required for closed-loop operation will not survive in the "wet" manifold used by most marine engines, and that to install a device to protect the O2 sensor from this moisture may require the removal, machining, and replacement of the exhaust manifold? Part# 50-5009QFT. Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. They have mods that help. #3. Do you offer a USCG fuel pump kit? Bolt-on carburetor style EFI for your classic car or truck. Yes, this is going to be an added expense, however, it will help guarantee your success. 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. . quick fuel. Holley Sniper - Oxygen Sensor Location | IH8MUD Forum 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. A third option would be to run your EFI system without an O2 sensor at all. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. :-), I started using OMC and Volvo Penta pumps for my conversion. Much of the system is encased right inside the throttle bodyand that includes the ECU. You are using an out of date browser. Maybe this one has a shorter cable? When problem-solving this type of issue, consider when and how you could use a work-around. I received my replacement TPS and O2 sensor. 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 ones in the Bosch box come without warranty. View Holley Sniper EFI Self-Tuning Kit - Shiny Finish. Part# 550-511. Thanks again for writing! 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. Holley EFI. Who knows. I am a competent mechanic and I have checked all the usual suspect items. Sniper EFI Releases new Stealth 4150 Models! 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! Have engine apart and head checked and cleaned at machine shop. It is the ratio between the mass of air and the mass of fuel in the air-fuel mix at any given moment. Holley EFI 534-49 Holley Oxygen Sensor O2 Bung Weld-In Style 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. YES! 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. Systems that were already designed for marine efi. The spark must be manually tuned. The Sniper EFI throttle-body drops in place of your . For gourmands, night markets not only offer scrumptious small . What exhausts are the best? 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. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! But you've found the right one for your Holley Sniper EFI System OR your Terminator X EFI System. For a better experience, please enable JavaScript in your browser before proceeding. WBO2 Sensor 17025 Bosch 554-155 Holley - EFISystemPro.com But you still risk a little water running back at low Rs. This Video Shows Ideal O2 Sensor Placement! 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. 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.). Precisely Adam. What Is Pinion Offset, And How Does That Affect You? 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. This page was generated at 08:35 AM. Late to the party but here's where mine are installed. 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. When buying the Holley Sniper EFI kit, you've got two basic options. They are the only ones got me a holley usb to can cable fast. -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. To simplify . Stock manifolds? I am just now ready to do the tuning this weekend. 29. 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. Amazon.com: Holley EFI Wbo2 Sensor, Sniper Tbi : Automotive PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. To close this one out, below is a photo of where I installed the O2 bung. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. Why? Holley EFI Oxygen Sensor. Master ASE tech since 91. Use a return fuel line. Pricing was reasonable, shipping was prompt and Chris helped me with a wiring question during my install. I recommend popping for the Master . Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! - You are currently viewing the forums as a GUEST. Sponsored Links (REGISTERED USERS DO NOT SEE THIS POST/AD!