HP comes from torque and rpm and rpm breaks things and increases wear. But this also makes me wonder what you did for the O2 sensor. For the most part each engine wants a bit of its own timing set-up IMHO, you boat owners with a 270HP 350 (or any other config) may want 350HP but upgrading it to that level will reduce or eliminate reliability. 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. Was in marine engineering for years. When the Sniper EFI System received USCG approval at the end of 2018 this presented some hope for boat owners. I'm looking for some more practical and scenario-specific advice; that's one small piece of it. I am a competent mechanic and I have checked all the usual suspect items. George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. I have a 74 bronco, 302, mild cam. Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish. 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. 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. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. If the indicator reads "LOW Err" double check the connection to the CTS. Sent unit back to Holley. 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. 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. Late to the party but here's where mine are installed. Are you running the latest software? #1. I installed a holley sniper kit. EFI Systems based on Holley's world-class Dominator and HP ECU's. In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey! Are you holding your RPMs back with the MSD for some reason? It's hallmark is its simplicity--but in this case it is also it's shortcoming. so simple check first, whats the fuel pressure? Visit their website for more details. Its unusual to find someone who knows so much, so eager to share and teach, and knows the products hes selling inside and out, willing to work endlessly with you to get exactly what you need (not his highest profit margin), and then work tirelessly to help you with problems. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . Right now I'm just using the AEM Wideband sensor to monitor Air/Fuel ratio but hope to use it in an EFI system soon. I mounted it here attempting to protect it from the deep water I play in and from lots of branches I encounter. So please, If you have problems registering or can't log into your account, please. I've seen O2 sensors in water jacketed headers that have worked fine for years. Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Yes, this is going to be an added expense, however, it will help guarantee your success. I installed a holley sniper kit. You really want a bigger engine. You will still get some water on the engine side of the snails, mainly at low Rs. All sensors are tested to ensure they accurately report critical engine data to the . Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Tech Resources. The test run was great, they have never run so well even when they were new with carbs. Still needs a EFI pump and return line. A third option would be to run your EFI system without an O2 sensor at all. . It has about 18 hrs to date and is working great. CTS (Coolant Temperature Sensor) - Reads engine temperature. I tried holley tech support, no answer and put on hold for hours. The wide band O2 sensor is required for initial running and calibration. Aug 17, 2013. All times are GMT-6. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! JavaScript is disabled. May 1, 2018 They want you to angle it to keep it from fouling. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. EFI EFI kit electronic fuel injection. PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. Some parts are not legal for use in California or other states with similar regulations. -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? Idle and off-idle performance (particularly as the engine goes into gear.) Is Holley working on a complete marine package or planning to in the future? In Stock. Warranty Information. To close this one out, below is a photo of where I installed the O2 bung. Features: . Wondering how you are progressing with this? The ones in the Bosch box come without warranty. I also capped off the regulated return line with a hose, clamps, and chamfering bit. 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. The World's largest You must log in or register to reply here. I would prefer to run this brand new Holley EFI system in a closed loop, not set the fuel map, and use the O2 sensor as only a sensor. But it is going to be a little tricky. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. 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. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. Who knows. Shop Oxygen Sensors at Summit Racing. . 10 min read Video. However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. The Fora platform includes forum software by XenForo. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. The Sniper EFI throttle-body drops in place of your . Sponsored Links (REGISTERED USERS DO NOT SEE THIS POST/AD! 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. Other countries likely have simmilar approval processes for marine engines. I am happy with Holleys no hassle replacement of the parts. Staff Writer. Welcome to Club Cobra! Super helpful and knowledgeable. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Marc, you don't mention which system you installed but the Holley systems are fully configurable. Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. 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. The Sniper EFI master kit contains the most complete EFI fuel system on the market. 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. From there, the idea is that it will self-tune to the requirements of the engine. It will flood itself out and won't start back, just crank and crank. If you let it cool down again, does it start up fine? My bet based on longer pump run, to make pressure, you have a leaking injector. 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. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Spray a rag down pretty good with brake cleaner. Replaced O2 sensor but continued to have AFR issues running too rich. Bosch 17025 Oxygen Sensor #1 Best Seller . 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. 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. Will I be able to run both systems off of one fuel pump? Douglas Cline. 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. If this is a first time effort, find a tuner in your area with marine experience. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. Copyright 2022 Holley Performance Products, Inc. All right reserved. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. . In order to do this, it heavily relies on proper O2 sensor placement. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. I have a 74 bronco, 302, mild cam. It flows 850 cfm and can support up to 650 horsepower. Specs. the Hamilton 212 pump is maxed out at about 4600 rpms, however it will provide about 10x the thrust that the berkly it is not as fast but haul much more load and work way better in white water. Fuel economy went from 12.5 to 13.5 gph to 10 gph. Have to replace head gasket. Howell indicates that this adapter was designed for the Chevy type Mercruiser manifold but that it should work on any similar marine wet manifold. The O2 sensor burned out immediately. If you are not running the latest software stop guessing and go download it. Taipei has dozens of world-class restaurants where gourmets can sample the most authentic Chinese cuisines. *Possible delays due to Covid-19 click for more information. 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. 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. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. Thanks for the heads up. I didn't read all this, but yes, the EFI system can be run without a WBO2 sensor. http://s621.photobucket.com/albums/tt291/Mark11530/?action=view¤t=MAH05771.mp4, http://www.holley.com/data/Products/Technical/199R10226.pdf. About your only location is in that short area from the log to the port face. If this could be disabled it would be much better. You must log in or register to reply here. Here's the pic of the location with my header. I have a local customer with a pair of big blocks in his offshore boat that is eager to get started on this. The first option is to just buy the injector body and the controller with the wiring harness and sensors. Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. In Stock. 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. 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 TWO YEARS Since installing my Sniper Stealth 4150 (Holley 550-871) on my small block Camaro, I've been chasing hard start cold or hot issues. 2. 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. No prime, but a second later it's ready to crank 'normally'. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. 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. the motor has the following mods, Aluminum heads, Performer intake, Sniper and MSD ignition module. I'm guessing by snail, that's another name for the riser? Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. Purely coincidence about the '2300' number. Master ASE tech since 91. The fuel pump question is the tough one. No one cares about your buddies old antiquated garden hose technology. This combines the Sniper EFI Self Learning Throttle Body, with an easy to install In-Tank Retrofit Returnless Module, 20 ft of Earl's Vapor Guard Fuel Hose, and the required fittings. Part# 534-199. Is this a good upgrade? Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? Capability Range: Professional You can selectively provide your consent below to allow such third party embeds. 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. blue doberman puppies. So I bought the progressive linkage but you then have . I will keep the replacements as spares. It may not display this or other websites correctly. Sorry for the late reply. 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. 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. Mike. While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. Sorry for the late reply, Douglas. Increasing efficiency is always a good idea. I would send an Email to Chris at EFIsystempro. 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. That's great--we look forward to your results! I installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. Runs like a champ now. The wiring was a bit of a mess. 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. This step is only for those installing their Super Sniper EFI on top of a draw-through or Roots-style blower. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? . (If I am incorrect I heartily invite your comment at the bottom of this article!) Waiting for spring to put back together. The following vehicles are considered Racing Use Only Vehicles: Holley is the new standard in EFI! Q3. Now the lower cost Holley Sniper advertised for March 31 2016. 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. Sensors that are installed in an exhaust must be connected to a properly On a side note: Im getting 4200 rpms at 5000 elevation with stock heads. Has been since the 80's. Sniper throttle body linkage opens all four barrels evenly when you depress the throttle. 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. It does not look like anything particularly superior in concept. Holley Sniper EFI Self-Tuning Kit - Shiny Finish, Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish, Holley Sniper EFI Self-Tuning Kit - Classic Gold Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Shiny Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Black Ceramic Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Classic Gold Finish. 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. Categories. Sniper EFI Quadrajet Marine. Part# 554-155. holley efi. 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. My hand is holding the connector to the sensor. For a better experience, please enable JavaScript in your browser before proceeding. Also, with Headers you loose 600 to 700 degrees between Head and bottom collector, you don't want to read that loss. The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. 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. The problem occurs when an excessive amount of oxygen makes its way from the intake port directly into the exhaust at idle and low engine speeds because of overlap. Most of you only need to tune 4 points, idling around the marina, part throttle - pulling the rope tight, 1/2-3/4 throttle - cruise, and YeeHaa - WOT. I recommend popping for the Master . The O2 sensor burned out immediately. Search for O2 Hotel Taipei Main Station discounts in Taipei City with KAYAK. Capability Range: Advanced Install the throttle linkage to the Sniper EFI throttle body. Essentially, when I push the clutch in and ease on the brakes to coast up to a stop light, the AFR goes lean (18:1 or so) and the engine stalls. 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. Stay up to date with the latest releases, events, promotions and more. YES! 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, If you call, they usually let you put in your name and they get back to you. I am considering the Daytona Sensors Ignition module. 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. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. 5. Holley Sniper EFI Wideband Oxygen Sensor. Brand: Holley EFI Emission Code: 5: Material: . Holley Sniper O2 sensor replacement. Affiliate. Holley EFI has the solutions you need to get your project up and running better than ever! Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. The spark must be manually tuned. Dec 28, 2016. 3. I've been building a TBI system from GM parts to use on a 1987 Wellcraft with the Mercruiser 4 cylinder engine. 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. While this is extremely unlikely if you are having immediate, back-to-back O2 sensor failures you should make the effort to rule this 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. 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. For a better experience, please enable JavaScript in your browser before proceeding. What exhausts are the best? 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. . Please consult the Holley Sniper full manual and use this guide for supplemental clarification. RPM going up and down , miss firing and backfiring. Holley EFI Usb/Can Harness, Sniper Tbi. 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. Distributor and ignition box? This really applies to any O2 sensor regardless of EFI system. 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. A forum community dedicated to performance boat owners and enthusiasts. Posted By : / actual instructions in flowcharting are represented in /; Under :nose exercise before and afternose exercise before and after That is defacto step one in trouble shooting fuel injection systems. Not always the case with a boat. The spark must be manually tuned. I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. What I think a lot of folks are missing is correct tuning of their carburetor engines Most inboard systems I worked on were intentionally set up to run rich with minimal timing (mostly to get through the warranty period). To simplify . 3. May 19, 2021. http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to Holley sniper issue on newly rebuilt motor, Holley Sniper with Duraspark and timing control. well I have installed the Sniper on my 460 KEM (Ford) marine motor. Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. For now I have a genuine bosch O2 and Standard Automotive TPS installed. Will I be able to control my ignition timing with the Sniper? I thought about adding some sort of extra protection but never did. THen you have to determine if you want 02 readings from one cylinder, or in the case you just mentioned mostly one cylinder, average of 4 cylinders on one bank or the other, or average of all 8 cylinders. . Yes, this is an old thread, but it's an old unit. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). 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. We may earn a small commission from affiliate links and paid advertisements. Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . Also the progressive link. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? I have not had it on the dyno with the sniper, but would guess probably about 400 to 410 hp and well over 500 tq.I did use the holley pump that came with the sniper. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. So much it could be. Everything about the fuel prime shot can be adjusted. Bolt-on carburetor style EFI for your classic car or truck. quick fuel. Have engine apart and head checked and cleaned at machine shop. What is your fuel pressure at the carb during crank? I would back-burner the ignition control questions until you get the fuel injection working. Oxygen sensor: It's perfectly OK to share narrow band oxygen sensors with the stock ECU. I'm about to embark on the same type of project. Sniper EFI 2300 Marine. 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. Description. 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. Anyone ever converted a 1987 3.7L 4cyl Mercruiser engine to EFI. I am concerned about the O2 sensor consideration, but in the end isn't the carburetor situation open loop? Thanks for that, Danny. running holley sniper without o2 sensorplymouth township mi police scanner. 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. Full time feedback from the sensor is what the computer uses to refine the fuel table. The Sniper will do that. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. The truck started fine after install, and ran down the road ok. They have been working out well for a few years now. Sniper EFI 2300 Marine. Q2. B/c what it sometimes perceives as a lean spike is actually raw fuel with no oxygen. Holley EFI. With a bad TPS you will have to manually prime to try and get it . Sniper EFI 4500 Marine. Holley 554-100 NTK Wideband Oxygen Sensor. One workaround was to leave it in gear and slow to a stop and push the clutch as RPMs drop . Newer ECMs have all the options to configure these functions. Yes! Incense-veiled temples with exquisite carvings and paintings dating back to dynastic times blend seamlessly in streets of the modern city. I was mocking it up at the time. Have you visually verified that all your injectors are spraying? . 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. turn on the ignition.but do not start the engine. The problem is with the Holley computer when you turn on the keyit squirts a prime for a split second. The original Holley Sniper instructions are available on the Holley website if you have misplaced them.

Kingdom Come: Deliverance How To Knock Someone Out Pc, Suffolk County Police Contract 2019, Articles R