Systems that were already designed for marine efi. No prime, but a second later it's ready to crank 'normally'.
Holley Sniper EFI Returnless Master Kit - Black Ceramic That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. If you have long tube headers, mount the sensor approximately 6-10" after the collector. The clamp-on that came with mine wasnt a good fit on my 2" pipe. It does this every time..when you start a warmed up engine, its too rich and starts poorly without throttle.
Holley Sniper O2 sensor replacement - Club Cobra I would send an Email to Chris at EFIsystempro. I will get a new 02 sensor before I swap back to the orange box. 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.
:-), I started using OMC and Volvo Penta pumps for my conversion. Part# 534-199. 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. Note the temperature sensor mounted on the back of the driver side head in the above photo. 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? Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. For a better experience, please enable JavaScript in your browser before proceeding. *Possible delays due to Covid-19 click for more information.
Wideband Realities: The Truth About Oxygen Sensors - EngineLabs functioning controller during engine operation. This runs in the area of $1000 and has everything you need for a basic install on almost any vehicle equipped with a four barrel carb. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! It turns out that the loading generated a propeller in the water is significantly different than wheels on pavement, so much so that the map has to be tuned differently. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. May 19, 2021. 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. 4.
EFI Swap | Shamrock Boat Owners' Club http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to
excessively rich mixtures), Mechanical shock (e.g. I have a 74 bronco, 302, mild cam. 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. Plug into the coolant temperature sensor. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL.
Explained: Holley EFI Sensors and What They Do I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. 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. Sniper EFI Releases new Stealth 4150 Models! I know from some of the other posts, there have been WBO2 sensor issues. 100% identical. 2 Reviews. Features: . I've seen O2 sensors in water jacketed headers that have worked fine for years. $132.95. 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. The in tank pump is quieter, will normally run cooler and should last longer. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. I was mocking it up at the time. Late to the party but here's where mine are installed.
O2 sensor failure on a Holley Sniper EFI - YouTube That is defacto step one in trouble shooting fuel injection systems. I tried holley tech support, no answer and put on hold for hours. If you call, they usually let you put in your name and they get back to you. No worse than taking the reading in the intake manifold cross over. Holley recommends a 3/8" fuel supply line. If this could be disabled it would be much better. As far as a sensor goes, absolutely nothing. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. Part # 554-155. What I installed on the motors was the Holley HP 19lb Holley Injectors the Holley 522-198 duel sync distributors with the MSD Digital 6A and the MSD Blaster 2 coils. But you have to get it tuned. You must log in or register to reply here. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? 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. Seems to have more low end tq and is much smoother power through out the rpm range. 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.
Perfectly Taipei - 25 Must-See City Highlights | Taipei Travel so simple check first, whats the fuel pressure? These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. Part# 550-511. I am happy with Holleys no hassle replacement of the parts. is donald smith still alive; julie grant court tv cheerleader 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. No one cares about your buddies old antiquated garden hose technology. I have searched thru the forum as much as I can, with not much luck.
Holley EFI 554-155 Holley EFI Oxygen Sensor It works fine. Bolt on 4150 Flange Carburetor Replacement. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. 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. The original Holley Sniper instructions are available on the Holley website if you have misplaced them. O2 sensors are water proof. Replaced and gapped to .45 all spark plugs. Full time feedback from the sensor is what the computer uses to refine the fuel table. Bolt-on carburetor style EFI for your classic car or truck. Taking a look at the holley manual I am thinking about drilling and tapping the front exhaust port on the log for the O2 sensor. I installed a holley sniper kit. Followed all the instructions to the letter. Ref: https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/I heard of the new Sniper EFI from some chatter on OffshoreOnly.com. Have to replace head gasket. We may earn a small commission from affiliate links and paid advertisements. 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. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. 3.
#HM206 - ADAPTOR, O2 SENSOR for Marine use - Howell EFI Conversion Staff Writer. From there, our highly trained factory refurbish technicians flow the original fuel injectors. Don't know about HP increase, with the QFT 750 it would turn a 212/4.0 combo to about 3950 to 4000, the Sniper turns it to 4000 to 4100. I really dont want any issues on the whitewater lol With a bad TPS you will have to manually prime to try and get it . blue doberman puppies. This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right? I am interested in upgrading both engines with Pertronix Ignitor or Ignitor II ignition and the Holley Sniper EFI 2300 and the Howell EFI marine O2 sensor adapter. What Is Pinion Offset, And How Does That Affect You? Just a rumor. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.
Holley Sniper - Oxygen Sensor Location | IH8MUD Forum I will be starting mine up this month, I hope it goes well, good luck to you. I installed the adapter and elbow so it's at an angle above the entry point. Howell indicates that this adapter was designed for the Chevy type Mercruiser manifold but that it should work on any similar marine wet manifold. Q2. replaced my original terminator x sensor that was mounted in an exhaust that took on some water and killed the original sensor.
Installing MegaSquirt in Parallel With the Stock ECU 92 YJ 4.0, AX-15 5spd, np231, dana 30 front, dana 35 rear. He knows his stuff, gets back quickly to you, etc.
Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 For a better experience, please enable JavaScript in your browser before proceeding. Does an yone have a pic of the O2 sensor in their exhaust? Sent unit back to Holley. Capability Range: Advanced 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. Option 1 is to purchase and install one of the Holley EFI Dual-Sync Distributors on your engine. I've got the Howell EFI adapter installed in the riser of some standard Inboard Manifolds and it works great. Some logs have water up to just short of the port. Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. I have installed the Holley hp efi MPFI on my twin inboard mercruiser 350ci 270 hp. As far as spark control, the Sniper will let you tune those 4 points, nothing else will. The Sniper EFI throttle-body drops in place of your . But it is going to be a little tricky. Went with around .525 lift, 270 duration on a 114 LSA and the car was sucking vacuum like a new hoover.
Holley Sniper EFI Oxygen Sensors 554-155 - Summit Racing Equipment I'm looking for some more practical and scenario-specific advice; that's one small piece of it. I've dunked mine lots of times. Is this a good upgrade?
Top 10 Sniper EFI Installation Tips from Holley's Tom Kise Bolt-on carburetor style EFI for your classic car or truck. My bet based on longer pump run, to make pressure, you have a leaking injector. The Holley Sniper EFI Quadrajet is a self-contained throttle-body injection system that's a direct replacement for spreadbore Quadrajet carburetors found on many classic GM vehicles.
Engine Startup Tuning for Sniper and Terminator X Stealth Owners 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 fuel pump question is the tough one. 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. i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. Ran about 5 seconds and died. Spray a rag down pretty good with brake cleaner. I received my replacement TPS and O2 sensor. You are using an out of date browser. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. Free ground shipping regardless of order size! Search for O2 Hotel Taipei Main Station discounts in Taipei City with KAYAK. 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. Also, with Headers you loose 600 to 700 degrees between Head and bottom collector, you don't want to read that loss. I took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. Sniper EFI Releases new Stealth 4150 Models! This is the 02 sensor adapter I used. Holley EFI Usb/Can Harness, Sniper Tbi. The engine floods and it is embarrassing when leaving a lock. Prime cannot be adjusted on this old unit. And it is timing that is equally critical to best performance and fuel economy. In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey! 2. The ones in the Bosch box come without warranty. 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. We also use content and scripts from third parties that may use tracking technologies. 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. pull the sensor out of the exhaust. It is the ratio between the mass of air and the mass of fuel in the air-fuel mix at any given moment.
O2 Hotel Taipei Main Station - KAYAK . EFI Systems based on Holley's world-class Dominator and HP ECU's. well I have installed the Sniper on my 460 KEM (Ford) marine motor. EFI EFI kit electronic fuel injection. 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, 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. I have not yet got it figured out. Part# 554-155. Much of the system is encased right inside the throttle bodyand that includes the ECU. Got a picture? I have a 74 bronco, 302, mild cam.
Holley EFI Sniper O2 Sensor Install - YouTube Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Be sure to disable autotune and remove the O2 sensor before it dies. The truck started fine after install, and ran down the road ok. The wiring was a bit of a mess. The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I do agree if he can get it tuned prior to fouling he can lock that tune and run in open loop. Taipei has dozens of world-class restaurants where gourmets can sample the most authentic Chinese cuisines. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. test the sensor.. for a basic pass/fail of the sensor. 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. Use a return fuel line. The adapter plate installs in between the exhaust manifold and the riser/elbow allowing for the water jackets to still be in place and an o2 sensor to be installed in the still dry exhaust gasses. By Joshua C on August 10, 2021 | Verified Owner, Worked right out of the box. I've installed several of these adaptive EFI's on cars with great success. CUSTOM ART FOR CUSTOM NEEDS. 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. In the event you decided earlier that you are going with the Sniper EFI System you will not have the requisite tuning capability by simply using the included handheld tuner. Ive got a set of bassett headers for a BBC, ill see if they can fit under the transom. 29. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. A 90-degree V-6 has three shared crankpins set 120 degrees apart. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. Bolt-on carburetor style EFI for your classic car or truck. 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. It flows 850 cfm and can support up to 650 horsepower. Its the Holley Pro Jection TBI mentioned by the above poster. If I am reading your post correctly you are using two separate o2 sensors when using headers ? Thanks for the heads up. Fine tuned the timing to 12-15 degrees. In Stock. Look at the bottom.. Also some tips on preventing O2 sensor damage Welcome to ClassicBroncos! Sensors that are installed in an exhaust must be connected to a properly Stock manifolds? 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. Followed all the instructions to the letter. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. Dec 28, 2016. Do you offer a USCG fuel pump kit? Hopefully this one lasts longer than the original. It works great where its at. Part Number: 510-554-155. 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. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. Add To Cart.
Troubleshooting Holley Sniper that hesitates on acceleration Register now for free!) Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Go to the web site and it will explain the installation it is very simple and works well.As for the rpm you are comparing to completely different animals (pumps). Sadly, no. 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? The sniper fit perfectly on the intake. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. Add To Cart. Will I be able to run both systems off of one fuel pump? Sort. Well an update on the Sniper install. Q1. 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.
Installing Holley's Sniper EFI Quadrajet System on a 1970 Corvette 3. Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? For a better experience, please enable JavaScript in your browser before proceeding. From time to time we receive phone calls from individuals who are interested in converting their carbureted boat motor to fuel injection. Conditions when closed loop o2 should be turned off. The Fora platform includes forum software by XenForo. CTS (Coolant Temperature Sensor) - Reads engine temperature. Restore or update your Holley Sniper EFI System with this WBO2 Sensor 17025 Bosch 554-155 Holley. I recommend popping for the Master . Holley Sniper EFI Oxygen Sensors 554-155 Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. What exhausts are the best? I installed one also on mercruiser 260 hp. non biased Shelby Cobra related site! - You are currently viewing the forums as a GUEST. Seemed to be getting too much fuel on hot starts and flooding out, could get it to go by putting it to the floor while cranking as Action mentioned. 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. 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 have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet?