so simple check first, whats the fuel pressure? A replacement clamp on would be an easy change out. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Add to Cart . In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey!
suspect bad o2 sensor with Holley efi | Yellow Bullet Forums 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. Next, the new unit was installed onto the manifold. Are you holding your RPMs back with the MSD for some reason? This really applies to any O2 sensor regardless of EFI system. You have to angle it to help the throttle cable get around the booster. Sort. . JavaScript is disabled. It flows 850 cfm and can support up to 650 horsepower.
Is this a viable upgrade for my boat?
Holley Sniper EFI System is Easy, Budget-Friendly Path to Fuel 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. They have been working out well for a few years now. Holley EFI Oxygen Sensor. For now I have a genuine bosch O2 and Standard Automotive TPS installed. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. But it is going to be a little tricky. The ones in the Bosch box come without warranty. Thanks for the feedback on this adapter, Donald. CUSTOM ART FOR CUSTOM NEEDS. Also the progressive link. Q2. I'm about to embark on the same type of project.
Description. It will not fit on round or oval risers without a suitable flat area. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. When buying the Holley Sniper EFI kit, you've got two basic options. Whether you're engine swapping your classic car or need to manage 4000 horsepower in your twin-turbocharged drag radial race car, Holley EFI has the solutions you need to get your project up and running better than ever! Sniper EFI 2300 Marine. Put an end to cold start issues, hesitations, vapor . Throttle body mounted ECU - no extra boxes to mount. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. Copyright 2022 Holley Performance Products, Inc. All right reserved. The plan is to 'learn' a fuel\Timing curve with a closed loop. Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. Capability Range: Moderate 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.
Converting Marine Engines to EFI | EFI Pro Hangout | General Studies Mike. Part# 534-199. Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. Sniper EFI Releases new Stealth 4150 Models! 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.
Engine Startup Tuning for Sniper and Terminator X Stealth Owners WARNING: It is against the law to install this part on an Emissions Controlled Vehicle, By Corey A on June 4, 2021 | Verified Owner. MAP Sensors. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps.
Wideband Realities: The Truth About Oxygen Sensors - EngineLabs It only runs rich on start up for a second due to the prime, after start it runs great.
PDF Holley Sniper Installation Supplement Holley Sniper EFI Oxygen Sensors 554-155 The new Exhaust manifolds will have wideband O2 bungs for tuning. A third option would be to run your EFI system without an O2 sensor at all. 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.
I'm guessing by snail, that's another name for the riser? Maybe going all the way to the front is the way to go? If you have a manual tranny starting off without squealing the tires can be tricky because all four barrels open up at the same time. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. 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. I'm using the NTK sensor. A forum community dedicated to performance boat owners and enthusiasts. George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. . Sort. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. Has anyone run an O2 sensor in an EFI on a marine engine? I've got the Howell EFI adapter installed in the riser of some standard Inboard Manifolds and it works great. 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. Dec 28, 2016. Sadly, no. They have mods that help. Visit their website for more details. Seems to LEARN much faster than the Fitech did. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. In Stock. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. I don't have enough experience with marine applications to know exactly what it will take to solve this. I installed a holley sniper kit. When the Sniper EFI System received USCG approval at the end of 2018 this presented some hope for boat owners. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? Bolt-on carburetor style EFI for your classic car or truck. 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)? I have installed the Holley hp efi MPFI on my twin inboard mercruiser 350ci 270 hp. The O2 sensor burned out immediately. *Possible delays due to Covid-19 click for more information. As far as a sensor goes, absolutely nothing. quick fuel. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? 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. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. 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. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Here's the pic of the location with my header. 2014 FJ Cruiser - White - 4X4 - Loaded - . I thought about adding some sort of extra protection but never did. 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. It does this every time..when you start a warmed up engine, its too rich and starts poorly without throttle. 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. It works fine. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. When it did keep running, the headers all started to smoke. #1. No one cares about your buddies old antiquated garden hose technology. Increasing efficiency is always a good idea. That is defacto step one in trouble shooting fuel injection systems. Other? May 1, 2018 They want you to angle it to keep it from fouling. All times are GMT-6. Are you running the entire system? Attempted to make a parts run in my 1990 Third gen Chevy Camaro with a small block chevy 350 with flowmaster mufflers.I believed the issue in this video to b. 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. The problem is with the Holley computer when you turn on the keyit squirts a prime for a split second. You can selectively provide your consent below to allow such third party embeds. The truck started fine after install, and ran down the road ok. Brand: Holley EFI Emission Code: 4 . Capability Range: Moderate For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. Joe, where did you end up installing the o2 sensor on your setup? I've seen O2 sensors in water jacketed headers that have worked fine for years.
Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 Bolt on 4150 Flange Carburetor Replacement. Only a few hours on the motor but so far so good. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. Incense-veiled temples with exquisite carvings and paintings dating back to dynastic times blend seamlessly in streets of the modern city. Purely coincidence about the '2300' number.
If this is a first time effort, find a tuner in your area with marine experience. 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. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. Just a rumor. I recognize that it would be an absolutely tremendous investment, but based on the overwhelming response we get to this post I am pretty confident that the market is there. This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right? John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity.
I do agree if he can get it tuned prior to fouling he can lock that tune and run in open loop. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. 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. To take advantage of all the site features, please take a moment to register. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! 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. 74 FJ40 confined to the swamp. Sponsored Links (REGISTERED USERS DO NOT SEE THIS POST/AD! Wiring the Holley Sniper EFI system is equally easy. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. test the sensor.. for a basic pass/fail of the sensor. Search for O2 Hotel Taipei Main Station discounts in Taipei City with KAYAK. If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. Conditions when closed loop o2 should be turned off. 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 . However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. 4. Holley recommends a 3/8" fuel supply line. To simplify . The Holley Sniper EFI Quadrajet is a self-contained throttle-body injection system that's a direct replacement for spreadbore Quadrajet carburetors found on many classic GM vehicles.
Holley Sniper - Oxygen Sensor Location | IH8MUD Forum I have not yet got it figured out. I would send an Email to Chris at EFIsystempro. I have a 74 bronco, 302, mild cam. I hope that the next F/2F header is more O2 sensor friendly. I installed a holley sniper kit. 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. Fuel economy went from 12.5 to 13.5 gph to 10 gph. Affiliate. - You are currently viewing the forums as a GUEST. The test run was great, they have never run so well even when they were new with carbs. And the relay and fuse were mounted along the firewall.
Holley EFI 534-49 Holley Oxygen Sensor O2 Bung Weld-In Style New 100 owner, long time cruiserhead - https://forum.ih8mud.com/threads/new-100-owner-long-time-cruiserhead.1300238/. I have a local customer with a pair of big blocks in his offshore boat that is eager to get started on this. Bolt-on carburetor style EFI for your classic car or truck. 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. On my system, I machined in the O2 sensor right between the snail and the manifold of a BBC. 3. What motor is this on? the motor has the following mods, Aluminum heads, Performer intake, Sniper and MSD ignition module. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. While these base maps are generally quite good for cars they are going to be pretty far off in the case of marine applications. I installed a holley sniper kit. 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 spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. Does an yone have a pic of the O2 sensor in their exhaust? - The sales brochure refers to Integrated Ignition Timing Control and Coil Driver. 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. Then dialed back the cranking fuel quite a bit and that seemed to help some, but still having ongoing issues. 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. But MAP sensors are very easy to physically implement and are inexpensive. This page was generated at 08:35 AM.
Installing MegaSquirt in Parallel With the Stock ECU OT pipes may be out of the question, but with the water dumps put in at the transom, ala Gil or Rewarder OT pipes, you could get dry readings with bungs a little above where they bolt onto the logs, I would think. Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish. Marc, you don't mention which system you installed but the Holley systems are fully configurable. Replaced and gapped to .45 all spark plugs. 02/25/2020. Find a lower price anywhere and we'll beat it by 5%! So much it could be. Advertising . 29. 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. Douglas Cline. The clamp-on that came with mine wasnt a good fit on my 2" pipe. This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues. I've dunked mine lots of times. Also some tips on preventing O2 sensor damage Can more detail be provided? (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. 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). Price Point: $$$. 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. Yes! Sep 14, 2021. Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. Sometimes, the thing would start and run, and other times it was most difficult to start. 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. Holley Sniper EFI Wideband Oxygen Sensor Part Number: 510-554-155 Click image to zoom $125.99 More than 10 available Lowest Price Guarantee Sniper EFI Wideband Oxygen Sensor Replacement Part for Holley Sniper EFI and Terminator X Systems Bosch LSU 4.9 See more product details Free Shipping - Ships Today QTY Add To Cart Add to Wish List The Sniper needs a "clean" 12V wire that is hot in Start and Run. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. Systems that were already designed for marine efi. Holley part number 554-155. You'll also notice that the firing order is 1-6-5-4-3-2. Still needs a EFI pump and return line. As far as packaging goes, one comes in a Bosch box, the other in a Holley package. 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. If you've done some automotive fuel map tuning before, you can likely overcome this challenge. After discussing it in this thread and talking with Holley's tech support, I decided . The included fuel system places a 340LPH fuel pump in the tank, which can easily be . *Possible delays due to Covid-19 click for more information. As far as spark control, the Sniper will let you tune those 4 points, nothing else will. I will get a new 02 sensor before I swap back to the orange box. The first thing to consider here (if you are in the USA) is US Coast Guard (USCG) Safety Approval. . Part # 554-155. Could show a lean condition when in fact it really isn't. Did you use the Holley fuel pump and have you had any issues with it? is donald smith still alive; julie grant court tv cheerleader Not sure how well the sensor likes being that close to the port. 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. I am a competent mechanic and I have checked all the usual suspect items. Find a lower price anywhere and we'll beat it by 5%! 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, 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? Stay up to date with the latest releases, events, promotions and more. I think I could run more boost but it's a real hand full right now. EFI Systems based on Holley's world-class Dominator and HP ECU's. Greatest struggle is the shift interrupt. 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. 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. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. EFI System Pro had everything I needed for my EFI upgrade. If you are not running the latest software stop guessing and go download it. May 19, 2021. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. pull the sensor out of the exhaust. It turns out that this is a common problem with the Sniper EFI install on vehicles with a manual transmission.
O2 sensor failure on a Holley Sniper EFI - YouTube I only have a stick welder and didn't trust myself on the thin pipe so I brazed it in.
Wondering how you are progressing with this? Jun 7, 2021. 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. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Only show this user. Maybe my manifolds leaked the inside between the snail and the log?? He also explains how to properly install them. That's great--we look forward to your results! These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. 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. In order to do this, it heavily relies on proper O2 sensor placement.