The Sniper EFI throttle-body drops in place of your . . I really dont want any issues on the whitewater lol http://s621.photobucket.com/albums/tt291/Mark11530/?action=view¤t=MAH05771.mp4, http://www.holley.com/data/Products/Technical/199R10226.pdf. One comes in the form of a Marine O2 Sensor Adapter from the folks at Howell EFI. About your only location is in that short area from the log to the port face. 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. This Video Shows Ideal O2 Sensor Placement! You are using an out of date browser. 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. Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! If you find that please let us know. Since the Sniper install, I encountered my second O2 sensor failure so I thought I would try the "Innovate Bung Extender" recommended by a few folks here. So please, If you have problems registering or can't log into your account, please. It turns out that this is a common problem with the Sniper EFI install on vehicles with a manual transmission. Perfectly Taipei - 25 Must-See City Highlights | Taipei Travel For now I have a genuine bosch O2 and Standard Automotive TPS installed. Its the Holley Pro Jection TBI mentioned by the above poster. What Is Pinion Offset, And How Does That Affect You? 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. Ive got a set of bassett headers for a BBC, ill see if they can fit under the transom. ), https://www.ebay.com/sch/i.html?_froensor&_sacat=0, https://www.amazon.com/Bosch-Automot1296929&sr=8-3, https://www.efisystempro.com/wbo2-seer-tbi-554-155, https://forums.holley.com/showthread2927#post82927. The in tank pump is quieter, will normally run cooler and should last longer. Holley Sniper EFI Wideband Oxygen Sensor. Had to replace the oxygen sensor on my car for the terminator x after the original one failed and this fixed all my problems. 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. In Stock. I tried holley tech support, no answer and put on hold for hours. When it did keep running, the headers all started to smoke. Put an end to cold start issues, hesitations, vapor . Items 1 - 21 of 21 Items. Systems that were already designed for marine efi. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. If you call, they usually let you put in your name and they get back to you. I am a competent mechanic and I have checked all the usual suspect items. 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. No matter what I do, it will not start. They are about 4 inches long, in-line between the log and manifold. *Possible delays due to Covid-19 click for more information. 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, Adam. (probably with the edelbrock marine 2506 intake). My hand is holding the connector to the sensor. In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey! Sadly, no. Went with around .525 lift, 270 duration on a 114 LSA and the car was sucking vacuum like a new hoover. The engine RPM when closed loop o2 will begin. Only a few hours on the motor but so far so good. 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. 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. Super helpful and knowledgeable. Ran about 5 seconds and died. watch the values in the software for the o2.. once is is done "Heating" and starts to show AFR, wrap the rag round it. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Currently has 2 bbl carburetor and mechanical distributor, mechanical fuel pump for 165hp. From there, the idea is that it will self-tune to the requirements of the engine. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. Followed all the instructions to the letter. May 19, 2021. The World's largest 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. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 Got a picture? I don't have enough experience with marine applications to know exactly what it will take to solve this. Part# 534-199. He knows his stuff, gets back quickly to you, etc. Add to Cart . Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. I was thinking aluminum heads would run it up closer to 5,000 rpm. The Fora platform includes forum software by XenForo. Holley Sniper Installation Supplement Please note, a Holley Sniper instruction manual, as well as some small parts that come with the . Anything else is going to be a frustrating recipe for for failure. I mounted it here attempting to protect it from the deep water I play in and from lots of branches I encounter. 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. Look at the bottom.. 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. In order to do this, it heavily relies on proper O2 sensor placement. 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. The fuel module is self contained with water jacket cooling and contains the low and high pressure pumps. . Product Q&A . Yes, this is an old thread, but it's an old unit. Maybe this one has a shorter cable? Some logs have water up to just short of the port. Holley EFI Usb/Can Harness, Sniper Tbi. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. 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. Yes, this is going to be an added expense, however, it will help guarantee your success. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. Copyright 2022 Holley Performance Products, Inc. All right reserved. The ones in the Bosch box come without warranty. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. 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.. Shop Oxygen Sensors at Summit Racing. In Stock. 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. 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. 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. When buying the Holley Sniper EFI kit, you've got two basic options. 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 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. is donald smith still alive; julie grant court tv cheerleader Capability Range: Professional #HM206 - ADAPTOR, O2 SENSOR for Marine use - Howell EFI Conversion Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. It does this every time..when you start a warmed up engine, its too rich and starts poorly without throttle. . The Sniper EFI could very well be one of the easiest to set-up fuel injections systems ever. 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. I just installed a Sniper on a 67 GTO and it was pretty straightforward, the end result was a much better starting/smother running car, than can adapt to elevation changes better, But we also installed the Holley Dual sync distributor for a complete system that adjusts timing as well. The test run was great, they have never run so well even when they were new with carbs. Holley EFI has the solutions you need to get your project up and running better than ever! (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. I think installing a wide band O2 sensor in the manifold(s) is a great idea. Conditions when closed loop o2 should be turned off. Bolt on 4150 Flange Carburetor Replacement. Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. Are you running the entire system? Q2. Seems to have more low end tq and is much smoother power through out the rpm range. It may not display this or other websites correctly. 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. My Lightnings have a bung welded through the water and into the dry exhaust area at the collector. QFI-500 Oxygen Sensor. Holley recommends a 3/8" fuel supply line. Bolt-on carburetor style EFI for your classic car or truck. What is your fuel pressure at the carb during crank? Get fast, Free Standard Shipping on orders over Summit Racing Equipment from $99 -- no shipping, handling, or rural fees! Does an yone have a pic of the O2 sensor in their exhaust? Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. View Holley Sniper EFI Self-Tuning Kit - Shiny Finish. Maybe my manifolds leaked the inside between the snail and the log?? Thanks. It's a compact HP pump and cooler assembly. He also explains how to properly install them. check out the. I will be starting mine up this month, I hope it goes well, good luck to you. It could be an instant fix. 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. It flows 850 cfm and can support up to 650 horsepower. Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. There can be leftover debris from manufacturing that have been washed down and are now clogging one. 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? My question is concerning what happens a year later, when I have a top-end swap . This step is only for those installing their Super Sniper EFI on top of a draw-through or Roots-style blower. Everyone else was backordered several months. As a follow up, I ended up using an eBay type anti fouler elbow for the O2 sensor to try and get it out of the water in the manifolds. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). . If I am reading your post correctly you are using two separate o2 sensors when using headers ? Idle and off-idle performance (particularly as the engine goes into gear.) 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. 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. Apr 13, 2017. with the extension. Great Article. Will I be able to control my ignition timing with the Sniper? The engine floods and it is embarrassing when leaving a lock. For a better experience, please enable JavaScript in your browser before proceeding. 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. Wideband vs Narrowband sensors - A narrowband O2 sensor is only calibrated to . Other? Stock manifolds? I would send an Email to Chris at EFIsystempro. The wiring was a bit of a mess. This is the 02 sensor adapter I used. . so simple check first, whats the fuel pressure? Holley EFI requires several pressure inputs in order to run an engine. If the indicator reads "LOW Err" double check the connection to the CTS. I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. Add to Cart . Staff Writer. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. I will let you know what happens. The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. . Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. A 90-degree V-6 has three shared crankpins set 120 degrees apart. Runs like a champ now. 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)? Sniper EFI - Holley Then if that doesn't work call the tech line they are great! Full product line and accessories at excellent pricing. How To Properly Place and Install an O2 Sensor - Holley Have engine apart and head checked and cleaned at machine shop. 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). John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity. Now the lower cost Holley Sniper advertised for March 31 2016. Also some tips on preventing O2 sensor damage 4. Q3. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle, By Corey A on June 4, 2021 | Verified Owner. He had one there that was run on a dyno then the fuel map was set and shipped back. But it is going to be a little tricky. HP comes from torque and rpm and rpm breaks things and increases wear. Price Point: $$$. This was for MPFI. Purely coincidence about the '2300' number. Plug into the coolant temperature sensor. running holley sniper without o2 sensor - plural.works 29. PDF Holley Sniper Installation Supplement Brand: Holley EFI Emission Code: 4 . 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? George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. (REGISTERED USERS DO NOT SEE THIS POST/AD! I will be calling around to see if I can find someone to help that has experience. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. Part# 554-155. You must log in or register to reply here. Without Headers Steamers location (above) is perfect, up close to the engine where you . If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. 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? Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. CUSTOM ART FOR CUSTOM NEEDS. The plan is to 'learn' a fuel\Timing curve with a closed loop. Restore or update your Holley Sniper EFI System with this WBO2 Sensor 17025 Bosch 554-155 Holley. EFI Systems based on Holley's world-class Dominator and HP ECU's. Terminator X O2 sensor Off the shelf replacement? Sort. 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. Find a lower price anywhere and we'll beat it by 5%! 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. 92 YJ 4.0, AX-15 5spd, np231, dana 30 front, dana 35 rear. Holley Sniper EFI - Page 3 - Offshoreonly.com Warranty Information. Holley EFI 554-155 Holley EFI Oxygen Sensor However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. 2023 Holley Performance Products, Inc. All Rights Reserved. Otherwise I have to check for a place in my gasoline tank to put the lines in. Are you running the latest software? 5. Well an update on the Sniper install. Replaced and gapped to .45 all spark plugs. Much of the system is encased right inside the throttle bodyand that includes the ECU.