Douglas Cline. Homemade body parts replace the originals as they rot away but it's a 40 on the inside. Sniper EFI Releases new Stealth 4150 Models! The Sniper EFI could very well be one of the easiest to set-up fuel injections systems ever. This is great information that can only get you closer to an ideal solution. In a horizontal or if pointed upwards it can collect exhaust condensation liquids upon start up. Will I be able to control my ignition timing with the Sniper? Sniper EFI 4500 Marine.
Holley sniper issues - 1969-70 Technical Forum - 69stang.com and The sniper fit perfectly on the intake. All sensors are tested to ensure they accurately report critical engine data to the .
Holley Sniper EFI Returnless Master Kit - Black Ceramic The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. Will I be able to run both systems off of one fuel pump? He knows his stuff, gets back quickly to you, 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. 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. 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. CTS (Coolant Temperature Sensor) - Reads engine temperature. 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. p.s. Using the correct length carb stud and nuts, tighten the Sniper EFI throttle body down progressively in a "criss-cross" pattern (60-80 in.lbs.). Free ground shipping regardless of order size! . The spark must be manually tuned. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. I was thinking aluminum heads would run it up closer to 5,000 rpm. It flows 850 cfm and can support up to 650 horsepower. *Possible delays due to Covid-19 click for more information. Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. I would send an Email to Chris at EFIsystempro.
Welding in an O2 Sensor Bung for a Holley Sniper EFI System 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. While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. 29. You will still get some water on the engine side of the snails, mainly at low Rs. Aug 17, 2013. Installed the sniper/MSD combo on my mildly built 460 KEM. Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. Free ground shipping regardless of order size! And who can blame them? Bolt-on carburetor style EFI for your classic car or truck. Sent unit back to Holley. Affiliate.
Holley EFI 534-49 Holley Oxygen Sensor O2 Bung Weld-In Style Any word on this? This completes the basic installation of the Holley Sniper EFI 4150 Super Sniper 1250/650 kit. See Details. functioning controller during engine operation. Did you use the Holley fuel pump and have you had any issues with it? Greatest struggle is the shift interrupt. What Is Pinion Offset, And How Does That Affect You?
Wideband Realities: The Truth About Oxygen Sensors - EngineLabs This requires removing the plug with a breaker bar, and using a 1/2 NPT to 3/8 NPT adapter to mount the Sniper sensor.
temporarily running without WBO2 sensor? - Holley For a better experience, please enable JavaScript in your browser before proceeding. Prime cannot be adjusted on this old unit. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. holley efi. After discussing it in this thread and talking with Holley's tech support, I decided . O2 sensor placement is critical for getting your engine to read the oxygen in the exhaust correctly and can directly impact the performance of your new EFI installation. You should then have at least 18-24" of pipe after the sensor. 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. 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. Sniper EFI Installation Guide. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Add to Cart . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. 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)? The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval.
Holley EFI 534-199 Wideband Oxygen Sensor Extension Cable Once the tune is complete, the O2 sensor can be defeated or . I have not gone back in to try to fine tune them. They have mods that help. blue doberman puppies. replaced my original terminator x sensor that was mounted in an exhaust that took on some water and killed the original sensor. You have to angle it to help the throttle cable get around the booster. As far as packaging goes, one comes in a Bosch box, the other in a Holley package. If you have long tube headers, mount the sensor approximately 6-10" after the collector. 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. 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. Stay up to date with the latest releases, events, promotions and more. 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. Categories. Replacement Sniper and Terminator X O2 Sensor. It appears that its a tuning issue. From time to time we receive phone calls from individuals who are interested in converting their carbureted boat motor to fuel injection. . The fuel module is self contained with water jacket cooling and contains the low and high pressure pumps. 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.. Ran about 5 seconds and died. I want to register an account for free right now! MAP Sensors. Yes, this is going to be an added expense, however, it will help guarantee your success. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? : For registered members this ad will NOT show. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. EFI Systems based on Holley's world-class Dominator and HP ECU's. running holley sniper without o2 sensorplymouth township mi police scanner. 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. My hand is holding the connector to the sensor. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. The original Holley Sniper instructions are available on the Holley website if you have misplaced them. The light shines in the darkness, and the darkness has not overcome it. Full product line and accessories at excellent pricing. I have tried several different settings to get it going, no luck. In the case of the car, you can generally get out and walk (run?) Yes, this is an old thread, but it's an old unit. I put mine after the collector only because I have a new exhaust and muffler going in and Ill use a weld in bung and placement will be different. but I'm finding when running engines with holley sniper kits the the engines are very eratic ,the air fuel numbers are always changing drastically from one pull to . 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. The truck started fine after install, and ran down the road ok. This doesn't mean it can't be done. $132.95. I have not yet got it figured out. Your talking flames at that point, and it will definitely have an effect on the reading. The engines are rated at 170 hp each. All times are GMT-6. Taipei has dozens of world-class restaurants where gourmets can sample the most authentic Chinese cuisines. Without the engine running, AFR will read 35.6 The fuel pump will run off a relay in the sniper harness (blue wire) pink wire gets switch/run power to the relay. View Holley Sniper EFI Self-Tuning Kit - Shiny Finish. Sadly, no. 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. Capability Range: Advanced looking at doing the same. Other? 100% identical. The Fora platform includes forum software by XenForo. Look at the bottom.. Phil is right. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. If I am reading your post correctly you are using two separate o2 sensors when using headers ? Part# 50-5009QFT. And the relay and fuse were mounted along the firewall. This doesn't apply to race boats. 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. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. Sort. A third option would be to run your EFI system without an O2 sensor at all. quick fuel. 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. Below are the most common sensor usages in a Holley EFI system, however pressure transducers can be applied to any form of pressure in an automotive system, from oil pressure, to exhaust back pressure, and the data gathering usages in racing can get quite creative. I have a 74 bronco, 302, mild cam. Add To Cart. Sep 14, 2021. Part # HM206. Apr 13, 2017. with the extension. Make sure to put anti seize on the threads. The new Exhaust manifolds will have wideband O2 bungs for tuning. That's great--we look forward to your results! Full time feedback from the sensor is what the computer uses to refine the fuel table.
Holley Sniper Marine EFI | Bloodydecks You are using an out of date browser. After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position.
Holley Sniper EFI System is Easy, Budget-Friendly Path to Fuel We Test It: Holley's New Sniper EFI - MotorTrend GA - As close to the lake as I can afford A powerful, MICRO BlueTooth in dash audio solution! Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. (REGISTERED USERS DO NOT SEE THIS POST/AD! Or maybe I could just use a piece of spare/junk exhaust tubing, and bolt it to the manifolds and add a weldless O2 bung to it. Holley EFI has the solutions you need to get your project up and running better than ever! 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.
Holley Sniper - Oxygen Sensor Location | IH8MUD Forum Capability Range: Moderate The in tank pump is quieter, will normally run cooler and should last longer. I installed a holley sniper kit. It will flood itself out and won't start back, just crank and crank. . Replacement Sniper and Terminator X O2 Sensor, This part is legal for sale or use on Racing Use Only Vehicles. Bolt-on carburetor style EFI for your classic car or truck. EFI EFI kit electronic fuel injection. If you've done some automotive fuel map tuning before, you can likely overcome this challenge. Some parts are not legal for use in California or other states with similar regulations. However, there's a good chance you will want to add a wideband O2 sensor at some point, in order to give the MegaSquirt more tuning information. I'm looking for some more practical and scenario-specific advice; that's one small piece of it. I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. Anti-Seize pre-applied to sensor threads. There are five significant plug connections to make from the throttle body: Plug into the oxygen sensor. One comes in the form of a Marine O2 Sensor Adapter from the folks at Howell EFI. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. $108.95. Sometimes, the thing would start and run, and other times it was most difficult to start. 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. 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. It may not be enough to cause problems with the way the engine runs aor even make into the cylinders, but it is enough of a mist to take out a O2 sensor. #1. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! Then if that doesn't work call the tech line they are great! Dec 28, 2016. PS, Once someone has a good 270/350 tune, everyone can use it. 2023 Holley Performance Products, Inc. All Rights Reserved. . Previously, none of Holley's throttle body injection (TBI) systems, such as the Terminator EFI were USCG approved (even though the HP and Dominaor ECU's themselves are.) 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. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. Have engine apart and head checked and cleaned at machine shop. Purely coincidence about the '2300' number. I was mocking it up at the time. 92 YJ 4.0, AX-15 5spd, np231, dana 30 front, dana 35 rear. Thanks for the heads up. Everyone raving about customer service is telling the truth! 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. This motor would probably turn the berk to 6 grand and blow it out from a stop.Motor dyno'd on a carb @389 hp @ 4700rpm and 497 tq @3500. Replaced and gapped to .45 all spark plugs. Yeah, it may sound hokey to some, but is just one option to solve the issue where you are and with what you have.
If you're thinking that you've read everything above and are ready to toss the carb on your marine engine then take this handy quiz to make sure! They are the only ones got me a holley usb to can cable fast. 3.
Installing MegaSquirt in Parallel With the Stock ECU Sniper EFI 4bbl Marine. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Seems to have more low end tq and is much smoother power through out the rpm range. Follow USCG rules about materials and fittings. I did--- Save your money and piece a fuel it together. Good luck! 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. Is this a good upgrade?
It's hallmark is its simplicity--but in this case it is also it's shortcoming.