Miami, FL. My first install was on a stock manifold and I installed it in about the same spot Steamer (above) did, except 180 degrees the other way, facing towards the front of the vehicle. The wiring was a bit of a mess. 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. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. 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. YES! Pricing was reasonable, shipping was prompt and Chris helped me with a wiring question during my install. Part# 550-511. 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. 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. Phil is right. I am happy with Holleys no hassle replacement of the parts. 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. $102.95. Yeah, it may sound hokey to some, but is just one option to solve the issue where you are and with what you have. 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. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! 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. Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. I'm using the NTK sensor. They are about 4 inches long, in-line between the log and manifold. Are you holding your RPMs back with the MSD for some reason? Let me know how I can be of assistance. Then dialed back the cranking fuel quite a bit and that seemed to help some, but still having ongoing issues. Q2. I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. Sniper throttle body linkage opens all four barrels evenly when you depress the throttle. Other? Still needs a EFI pump and return line. Brand: Holley EFI Emission Code: 5: Material: . A third option would be to run your EFI system without an O2 sensor at all. MAP Sensors. It will flood itself out and won't start back, just crank and crank. Add to Cart . blue doberman puppies. I want to register an account for free right now! I recently installed the sniper setup on my stock 71 duster 340 4 speed. If I am reading your post correctly you are using two separate o2 sensors when using headers ? The truck started fine after install, and ran down the road ok. As far as packaging goes, one comes in a Bosch box, the other in a Holley package. 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.. 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). Found out that it was due to rfi/emi. Currently has 2 bbl carburetor and mechanical distributor, mechanical fuel pump for 165hp. Note, that is not a crack in the exhaust manifold, just a shadow from a casting flaw. I would back-burner the ignition control questions until you get the fuel injection working. Finally, do you also recognize that the self-tuning feature of the Sniper EFI may not result in an acceptable configuration for your boat and, as such, may require you to seek professional tuning? Oxygen sensor: It's perfectly OK to share narrow band oxygen sensors with the stock ECU. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. 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. In this case, the prime shot is good for cold, but too much for warm. Phil said water would still get up over the snail and knock out the sensor. You'll also notice that the firing order is 1-6-5-4-3-2. After discussing it in this thread and talking with Holley's tech support, I decided . I want to register an account for free right now! This was for MPFI. Have engine apart and head checked and cleaned at machine shop. #3. But MAP sensors are very easy to physically implement and are inexpensive. When either of these operating temperature ranges is exceeded, the sensor can no longer be . 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. . non biased Shelby Cobra related site! Part# 534-199. Boats don't cruise at 60mph up and down hills. The boat underway acts very much like a water brake dyno I strongly believe that a well broken in engine in good condition can stand a much more critical tune w/o issues and deliver almost the same fuel economy as the proposed EFI conversion. I have searched thru the forum as much as I can, with not much luck. The O2 sensor burned out immediately. The light shines in the darkness, and the darkness has not overcome it. 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. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. Posted By : / actual instructions in flowcharting are represented in /; Under :nose exercise before and afternose exercise before and after Bolt-on carburetor style EFI for your classic car or truck. Add to Cart . Find a lower price anywhere and we'll beat it by 5%! 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. Replaced O2 sensor but continued to have AFR issues running too rich. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. The problem is with the Holley computer when you turn on the keyit squirts a prime for a split second. The throttle body has a built in fuel pressure regulator set at 58.5 psi. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Did you use the Holley fuel pump and have you had any issues with it? My boat is still in winter storage. - You are currently viewing the forums as a GUEST. Wideband Oxygen Sensor Extension Cable. Are you running the entire system? well I have installed the Sniper on my 460 KEM (Ford) marine motor. 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. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. EFI EFI kit electronic fuel injection. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. Late to the party but here's where mine are installed. Sniper EFI Quadrajet Marine. I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. KAYAK searches hundreds of travel sites to help you find and book the hotel deal at O2 Hotel Taipei Main Station that suits you best. away. 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. I installed a holley sniper kit. He had one there that was run on a dyno then the fuel map was set and shipped back. Why? Seems to LEARN much faster than the Fitech did. In the case of the car, you can generally get out and walk (run?) I had the pink ecu signal wire connected to a bullet connector on the passenger side . 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. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. Staff Writer. Had to replace the oxygen sensor on my car for the terminator x after the original one failed and this fixed all my problems. I hope that the next F/2F header is more O2 sensor friendly. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. 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. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. Prime cannot be adjusted on this old unit. . It's a compact HP pump and cooler assembly. Advanced throttle body injection systems capable of transmission control and more. You must log in or register to reply here. I have a boat with twin 3.7 Mercruisers. Maybe this one has a shorter cable? quick fuel. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Bolt-on carburetor style EFI for your classic car or truck. No prime, but a second later it's ready to crank 'normally'. New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. Has been since the 80's. 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. QFI-500 Oxygen Sensor. Can anyone share their experiences with this type of setup? . The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. GA - As close to the lake as I can afford A powerful, MICRO BlueTooth in dash audio solution! Full time feedback from the sensor is what the computer uses to refine the fuel table. After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. So much it could be. If you're not running one (or if you are and the water has killed it) then it is not surprising that you are running rich. It may not display this or other websites correctly. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. 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. Plug into the coolant temperature sensor. I will keep the in-line pump for a spare. pull the sensor out of the exhaust. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. Holley EFI. Staff Writer. All of the wiring begins at the throttle body and connects outward from there. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. Part# 554-155. You really want a bigger engine. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. Sort. 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. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. They have been working out well for a few years now. They are the only ones got me a holley usb to can cable fast. *Possible delays due to Covid-19 click for more information. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. 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. 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. I was thinking aluminum heads would run it up closer to 5,000 rpm. Sniper EFI 4bbl Marine. All sensors are tested to ensure they accurately report critical engine data to the . Systems that were already designed for marine efi. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. It has about 18 hrs to date and is working great. That sounds like one solution. I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. I just discovered that was the case with my Fitech. Note the temperature sensor mounted on the back of the driver side head in the above photo. So far so good. I will let you know what happens. Sponsored Links (REGISTERED USERS DO NOT SEE THIS POST/AD! 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. $5 Off Your $100 Mobile App Purchase . 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. Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. 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. The first option is to just buy the injector body and the controller with the wiring harness and sensors. He knows his stuff, gets back quickly to you, etc. I had a blue wire coming out of the firewall that met this need, but it was already hooked-up to the + side of the coil and the Duraspark box. It's hallmark is its simplicity--but in this case it is also it's shortcoming. 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. Air-Fuel Ratio (AFR) - The most common reference term used for mixtures in internal combustion engines. In the end I ended up using a Fuel Control cell made by Pleasure Craft Marine for their 351W engines. Sniper EFI Releases new Stealth 4150 Models! Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. 100% identical. Having selecting USCG-approved components, and sourced your O2 sensor adapter, there is but one more challenge--tuning. Replaced and gapped to .45 all spark plugs. In a horizontal or if pointed upwards it can collect exhaust condensation liquids upon start up. When buying the Holley Sniper EFI kit, you've got two basic options. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? There are five significant plug connections to make from the throttle body: Plug into the oxygen sensor. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. You will still get some water on the engine side of the snails, mainly at low Rs. Be sure to disable autotune and remove the O2 sensor before it dies. What motor is this on? Register now for free!) One of the most common causes of poor idle is improper O2 sensor placement or trying to run closed loop at idle . The Tech Tips and discussions are also great! While the Sniper has an absolutely outstanding internal ECU, the current model does not offer any laptop programmability. I have about 30 hrs on the unit and it just keeps getting smoother with every hr of run time. Holley Sniper O2 sensor replacement. For now I have a genuine bosch O2 and Standard Automotive TPS installed. 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. By bypassing the built in pressure regulator in the fuel module(allowing full flow and pressure), using 3/8 hard lines to/from the sniper to meet CG rules( no soft lines on the engine block)using the snipers fuel pressure regulator, This is as close as I can come to safe. In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey! EFI Systems based on Holley's world-class Dominator and HP ECU's. I was mocking it up at the time. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. 29. May 19, 2021. But you have to get it tuned. Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. I am considering the Daytona Sensors Ignition module. Do you offer a USCG fuel pump kit? Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . 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. Thanks for that, Danny. you don't want to read that loss. I will be calling around to see if I can find someone to help that has experience. Have you visually verified that all your injectors are spraying? EFI EFI kit electronic fuel injection. I installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. Sniper EFI Installation Guide. Holley Sniper Installation Supplement Please note, a Holley Sniper instruction manual, as well as some small parts that come with the . For a better experience, please enable JavaScript in your browser before proceeding. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). I've been building a TBI system from GM parts to use on a 1987 Wellcraft with the Mercruiser 4 cylinder engine. An update from Al:After installing them I used the auto tune program on the Holly HP V4 software and they are working great. Each engine has the Holley marine 2 barrel carburetor. From there, the idea is that it will self-tune to the requirements of the engine. 5. Are you running the latest software? I think installing a wide band O2 sensor in the manifold(s) is a great idea. Welcome to ClassicBroncos! 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. 10 min read.
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