There is no problem getting this tuned and then running open loop. 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. Also the progressive link. 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. Now the lower cost Holley Sniper advertised for March 31 2016. . Yes! Once the tune is complete, the O2 sensor can be defeated or . Features: . Price Point: $, Advanced throttle body injection systems capable of transmission control and more. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. And who can blame them? All times are GMT-6. Found out that it was due to rfi/emi. Throttle body mounted ECU - no extra boxes to mount. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. If you call, they usually let you put in your name and they get back to you. Wiring the Holley Sniper EFI system is equally easy. The spark must be manually tuned. you don't want to read that loss. Maybe going all the way to the front is the way to go? Each engine has the Holley marine 2 barrel carburetor. Master ASE tech since 91. I really dont want any issues on the whitewater lol 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. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. . 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. Bosch 17025 Oxygen Sensor #1 Best Seller . The World's largest
Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. Option 1 is to purchase and install one of the Holley EFI Dual-Sync Distributors on your engine. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. 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. #1. The fuel pump question is the tough one. Thanks. New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. Staff Writer. The Fora platform includes forum software by XenForo. It may not display this or other websites correctly. I installed the adapter and elbow so it's at an angle above the entry point. Good luck to all. Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. Capability Range: Professional Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. Pink switched power wire, this needs to be connected to a point that is 12V in run and while cranking. I installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Anti-Seize pre-applied to sensor threads. I recently installed the sniper setup on my stock 71 duster 340 4 speed. 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. Is this a viable upgrade for my boat? 29. 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. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. 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. For now I have a genuine bosch O2 and Standard Automotive TPS installed. Wideband Oxygen Sensor Extension Cable. The O2 sensor burned out immediately. It does not work with the Sniper EFI oxygen sensor. For a better experience, please enable JavaScript in your browser before proceeding. 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. This is great information that can only get you closer to an ideal solution. About your only location is in that short area from the log to the port face. No prime, but a second later it's ready to crank 'normally'. 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. It is the ratio between the mass of air and the mass of fuel in the air-fuel mix at any given moment. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . Restore or update your Holley Sniper EFI System with this WBO2 Sensor 17025 Bosch 554-155 Holley. Q2. If you let it cool down again, does it start up fine? Dec 28, 2016. Sadly, no. 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. 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. It could be an instant fix. 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 works great where its at. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I am just now ready to do the tuning this weekend. 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. Anything else is going to be a frustrating recipe for for failure. 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. 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. I mounted it here attempting to protect it from the deep water I play in and from lots of branches I encounter. This Video Shows Ideal O2 Sensor Placement! I do agree if he can get it tuned prior to fouling he can lock that tune and run in open loop. Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. *Possible delays due to Covid-19 click for more information. Are you holding your RPMs back with the MSD for some reason? Warranty Information. I had the pink ecu signal wire connected to a bullet connector on the passenger side . I will be calling around to see if I can find someone to help that has experience. This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues. Plug into the coolant temperature sensor. That is defacto step one in trouble shooting fuel injection systems. Increasing efficiency is always a good idea. I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. Seems to LEARN much faster than the Fitech did. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. When either of these operating temperature ranges is exceeded, the sensor can no longer be . Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas. 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. Emissions. I know from some of the other posts, there have been WBO2 sensor issues. Advertising . I have a local customer with a pair of big blocks in his offshore boat that is eager to get started on this. My boat is still in winter storage. . Precisely Adam. *Possible delays due to Covid-19 click for more information. EFI EFI kit electronic fuel injection. I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. The original Holley Sniper instructions are available on the Holley website if you have misplaced them. Other? Pricing was reasonable, shipping was prompt and Chris helped me with a wiring question during my install. well I have installed the Sniper on my 460 KEM (Ford) marine motor. And it is timing that is equally critical to best performance and fuel economy. :-), I started using OMC and Volvo Penta pumps for my conversion. 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. 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 just discovered that was the case with my Fitech. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. So much it could be. Went with around .525 lift, 270 duration on a 114 LSA and the car was sucking vacuum like a new hoover. Holley EFI Usb/Can Harness, Sniper Tbi. 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. Have you visually verified that all your injectors are spraying? Innovate Motorsports HBX-1 Bung Extender. If I am reading your post correctly you are using two separate o2 sensors when using headers ? Capability Range: Advanced Doesn't look like it will have an O2 sensor. Fine tuned the timing to 12-15 degrees. I installed it without O2 sensor, adjust on the fly. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. Be sure to disable autotune and remove the O2 sensor before it dies. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. Do you offer a USCG fuel pump kit? 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. Why? Bolt-on carburetor style EFI for your classic car or truck. Are you running the entire system? Has been since the 80'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. I don't have enough experience with marine applications to know exactly what it will take to solve this. Marc, you don't mention which system you installed but the Holley systems are fully configurable. 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. It's fast, simple and absolutely free. Conditions when closed loop o2 should be turned off. With a bad TPS you will have to manually prime to try and get it . I think installing a wide band O2 sensor in the manifold(s) is a great idea. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Some logs have water up to just short of the port. Seems to have more low end tq and is much smoother power through out the rpm range. Ran about 5 seconds and died. So there is at least some probability of success. Categories. Holley EFI Oxygen Sensor. Free ground shipping regardless of order size! That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. pull the sensor out of the exhaust. For gourmands, night markets not only offer scrumptious small . Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. 92 YJ 4.0, AX-15 5spd, np231, dana 30 front, dana 35 rear. Its the Holley Pro Jection TBI mentioned by the above poster. Specs. All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. In Stock. I recommend popping for the Master . That sounds like one solution. Followed all the instructions to the letter. 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. Capability Range: Moderate Any exhaust down at engine level or lower will definitely get at LEAST some steam. Install the throttle linkage to the Sniper EFI throttle body. Supports up to 650hp with Four 100 Lb/Hr Injectors! As far as packaging goes, one comes in a Bosch box, the other in a Holley package. As I have since added above, the Sniper simply isn't going to be the system to use to tackle this problem. Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. I would back-burner the ignition control questions until you get the fuel injection working. PS, Once someone has a good 270/350 tune, everyone can use it. 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. Oxygen sensor: It's perfectly OK to share narrow band oxygen sensors with the stock ECU. I'm guessing by snail, that's another name for the riser? I myself will convert my 2 302's (Volvo Penta 5.0 l AQ231A) from carbs to EFI; I must find out everything before I start work on the engines, then I am satisfied to start. 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. You are using an out of date browser. Late to the party but here's where mine are installed. 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. In order for it to work as designed the O2 sensor has to be installed in a dry exhaust system and needs to be placed 1-10in from the collector in the headers. The sniper fit perfectly on the intake. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. EFI is the wave of the future. 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. I have installed the Holley hp efi MPFI on my twin inboard mercruiser 350ci 270 hp. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. I only have a stick welder and didn't trust myself on the thin pipe so I brazed it in. $108.95. 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? We also use content and scripts from third parties that may use tracking technologies. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. I have searched thru the forum as much as I can, with not much luck. If you find that please let us know. They have mods that help. This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right? running holley sniper without o2 sensorplymouth township mi police scanner. The clamp-on that came with mine wasnt a good fit on my 2" pipe. The engine floods and it is embarrassing when leaving a lock. I installed a holley sniper kit. We may earn a small commission from affiliate links and paid advertisements. Sep 14, 2021. The very front would be the safest place. 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. I've seen O2 sensors in water jacketed headers that have worked fine for years. (probably with the edelbrock marine 2506 intake). Sniper EFI Installation Guide. Yellow Cold! Sniper EFI 4bbl Marine. 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. 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. Wondering how you are progressing with this? This doesn't mean it can't be done.