running holley sniper without o2 sensor

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. 74 FJ40 confined to the swamp. Make sure to put anti seize on the threads. 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. 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. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. Sniper EFI 2300 Marine. I've installed several of these adaptive EFI's on cars with great success. This is great information that can only get you closer to an ideal solution. FWIW, I called Holley to confirm the part number and they say the Bosch part number if 17212 (also available on Amazon for $64.78). Holley EFI Oxygen Sensor. . Only show this user. 10 min read. Sadly, no. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. It does not look like anything particularly superior in concept. 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. The first option is to just buy the injector body and the controller with the wiring harness and sensors. Free ground shipping regardless of order size! Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. Sniper EFI 2300 Marine. Did you use the Holley fuel pump and have you had any issues with it? 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). Everything is included to completely plumb your fuel system including; 20 feet of 3/8" EFI Hose, in-line fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. If this is a first time effort, find a tuner in your area with marine experience. 100% identical. 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. the engine not running. Here is one on start up tuning. 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 wide band O2 sensor is required for initial running and calibration. John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity. Free ground shipping regardless of order size! Your talking flames at that point, and it will definitely have an effect on the reading. Will I be able to control my ignition timing with the Sniper? Thinking about this I think this will work very fine! The target A/F value based on load or MAF cfm, and engine speed. $108.95. 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. I want to remove the old fuel injected Mercruiser factory EFI on both engines because they have begun to be troublesome. Once the tune is complete, the O2 sensor can be defeated or . Distributor and ignition box? I installed the adapter and elbow so it's at an angle above the entry point. Doesn't look like it will have an O2 sensor. Specs. Initial Calibration in Basic Configuration. turn on the ignition.but do not start the engine. Have you visually verified that all your injectors are spraying? Then if that doesn't work call the tech line they are great! Conditions when closed loop o2 should be turned off. They are the only ones got me a holley usb to can cable fast. Then they had it repaired and back to me in 5 business days. Still needs a EFI pump and return line. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. Holley Sniper - Oxygen Sensor Location Thread starter GA Architect; . *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. Prime cannot be adjusted on this old unit. Brand: Holley EFI Emission Code: 4 . I am a competent mechanic and I have checked all the usual suspect items. Sniper EFI Releases new Stealth 4150 Models! Not always the case with a boat. My bet based on longer pump run, to make pressure, you have a leaking injector. Add to Cart . Having selecting USCG-approved components, and sourced your O2 sensor adapter, there is but one more challenge--tuning. Can anyone share their experiences with this type of setup? I have not yet got it figured out. 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. Installed the sniper/MSD combo on my mildly built 460 KEM. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. 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. Thanks for that, Danny. All sensors are tested to ensure they accurately report critical engine data to the . For gourmands, night markets not only offer scrumptious small . I recommend popping for the Master . If this could be disabled it would be much better. In order to do this, it heavily relies on proper O2 sensor placement. *Possible delays due to Covid-19 click for more information. In a horizontal or if pointed upwards it can collect exhaust condensation liquids upon start up. The Holley Super Sniper High Performance EFI kit comes with a coolant temperature sensor and an O2 sensor, both of which must be used for the EFI to work properly. Was told by holley tech support to make adjustments to the fuel prime percent and multiplier settings, played with those with no major improvement. I have installed the Holley hp efi MPFI on my twin inboard mercruiser 350ci 270 hp. 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. He knows his stuff, gets back quickly to you, etc. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. With the sniper as long as you locate the o2 sensor where it gets good feedback and stays dry long enough to get a good tune you could lock it so even if the o2s get wet it still runs good. 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. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. http://s621.photobucket.com/albums/tt291/Mark11530/?action=view¤t=MAH05771.mp4, http://www.holley.com/data/Products/Technical/199R10226.pdf. 29. Part# 554-155. And who can blame them? As far as spark control, the Sniper will let you tune those 4 points, nothing else will. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. I will be calling around to see if I can find someone to help that has experience. I will change and be using an in-tank pump when I install the new 120 gallon tank this winter. 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. And the relay and fuse were mounted along the firewall. Apr 13, 2017. with the extension. Marc, you don't mention which system you installed but the Holley systems are fully configurable. is donald smith still alive; julie grant court tv cheerleader It may not display this or other websites correctly. Add To Cart. If I am reading your post correctly you are using two separate o2 sensors when using headers ? George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. Capability Range: Advanced Supports up to 650hp with Four 100 Lb/Hr Injectors! 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. If you've done some automotive fuel map tuning before, you can likely overcome this challenge. I have a boat with twin 3.7 Mercruisers. 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 installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. Jun 7, 2021. Do you offer a USCG fuel pump kit? 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.. I have tried several different settings to get it going, no luck. There are drawbacks to that (as your tuner can explain in more detail) but it is doable, provided the system is correctly tuned initially. I just discovered that was the case with my Fitech. Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery. If you call, they usually let you put in your name and they get back to you. 5. 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. I have searched thru the forum as much as I can, with not much luck. 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. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. 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. It only runs rich on start up for a second due to the prime, after start it runs great. The original Holley Sniper instructions are available on the Holley website if you have misplaced them. Given the traditionally poor fuel economy of carbureted marine engines, we feel your pain. 2023 Holley Performance Products, Inc. All Rights Reserved. The O2 sensor burned out immediately. non biased Shelby Cobra related site! The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. . See Details. I think installing a wide band O2 sensor in the manifold(s) is a great idea. I hope that the next F/2F header is more O2 sensor friendly. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. Followed all the instructions to the letter. In the end I ended up using a Fuel Control cell made by Pleasure Craft Marine for their 351W engines. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. I received my replacement TPS and O2 sensor. Find a lower price anywhere and we'll beat it by 5%! $132.95. Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. . I have also picked up another .5 gallons per hr to about 9.25 gph. Add to Cart . Full product line and accessories at excellent pricing. Part # 554-155. Otherwise I have to check for a place in my gasoline tank to put the lines in. 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 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. He had one there that was run on a dyno then the fuel map was set and shipped back. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. Holley part number 554-155. The plan is to 'learn' a fuel\Timing curve with a closed loop. 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. Homemade body parts replace the originals as they rot away but it's a 40 on the inside. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. One of the most common causes of poor idle is improper O2 sensor placement or trying to run closed loop at idle . I had an injector fail after a month of running and called the tech line who helped me figure that out. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. This completes the basic installation of the Holley Sniper EFI 4150 Super Sniper 1250/650 kit. OP, the Edelbrock system looks to use the same basic sensors as the Holley sniper system: TPS, MAP and O2, plus a few supporting sensors. 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 hos. Have to replace head gasket. However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. Followed all the instructions to the letter. Anything else is going to be a frustrating recipe for for failure. This doesn't mean it can't be done. I took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. $102.95. Wiring the Holley Sniper EFI system is equally easy. Ive got a set of bassett headers for a BBC, ill see if they can fit under the transom. Just a rumor. Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. Bolt-on carburetor style EFI for your classic car or truck. There can be leftover debris from manufacturing that have been washed down and are now clogging one. Price Point: $$$. Pay close attention to the instructions on O2 sensor placement. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. When problem-solving this type of issue, consider when and how you could use a work-around. I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. You should then have at least 18-24" of pipe after the sensor. When it did keep running, the headers all started to smoke. Q3. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. I have a 74 bronco, 302, mild cam. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. Thanks again for writing! I've seen O2 sensors in water jacketed headers that have worked fine for years. 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. No prime, but a second later it's ready to crank 'normally'. Can more detail be provided? 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. so mine has been pretty good but 1 out 20 starts you can hear the fuel pump run longer then normal..when it does that it will light off then diebut if i put my foot to the floor it will start..still working on that 1..timing i am running 12 cranking.20 idle.40 cruze.35 wotstill playing with all of this..Mine is also a sniper stealth. Having the same problem with my sniper as well, intermittent hot (and cold) start issues. But you've found the right one for your Holley Sniper EFI System OR your Terminator X EFI System. You must log in or register to reply here. http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to Advanced throttle body injection systems capable of transmission control and more. Runs like a champ now. Fuel economy went from 12.5 to 13.5 gph to 10 gph. I purchased the Holley HP MPFI system and went to the lake with it. Systems that were already designed for marine efi. Not sure how well the sensor likes being that close to the port. check out the. Newer ECMs have all the options to configure these functions. While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. I would send an Email to Chris at EFIsystempro. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. I thought about adding some sort of extra protection but never did. Holley EFI Usb/Can Harness, Sniper Tbi. test the sensor.. for a basic pass/fail of the sensor. Thanks for the feedback on this adapter, Donald. I want to register an account for free right now! I think I could run more boost but it's a real hand full right now. Mine is right where Steamers is, and works well with my AFI TBI. Taipei has dozens of world-class restaurants where gourmets can sample the most authentic Chinese cuisines. YES! Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish. (REGISTERED USERS DO NOT SEE THIS POST/AD! 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)? Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Will I be able to run both systems off of one fuel pump? There are five significant plug connections to make from the throttle body: Plug into the oxygen sensor. The very front would be the safest place. It appears that its a tuning issue. Get fast, Free Standard Shipping on orders over Summit Racing Equipment from $99 -- no shipping, handling, or rural fees! I'll let you know how it works out. 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. #3. Visit their website for more details. For a better experience, please enable JavaScript in your browser before proceeding. It's a compact HP pump and cooler assembly. Capability Range: Advanced Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. If you have long tube headers, mount the sensor approximately 6-10" after the collector. (probably with the edelbrock marine 2506 intake). Seems to have more low end tq and is much smoother power through out the rpm range. JavaScript is disabled. Vega$69. Each engine has the Holley marine 2 barrel carburetor. He also explains how to properly install them. Note the temperature sensor mounted on the back of the driver side head in the above photo. 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. 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. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. Sensors: Fitting: Threaded O2 . I was thinking aluminum heads would run it up closer to 5,000 rpm. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. Super helpful and knowledgeable. 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 will keep the in-line pump for a spare. Are you running the latest software? So far so good. 3. . Specs. No one cares about your buddies old antiquated garden hose technology. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. Maybe my manifolds leaked the inside between the snail and the log?? It will flood itself out and won't start back, just crank and crank. Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . They have been working out well for a few years now. The Sniper EFI throttle-body drops in place of your . Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas. About your only location is in that short area from the log to the port face. 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. Wondering how you are progressing with this? My boat is still in winter storage. Price Point: $$$. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. 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.

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