running holley sniper without o2 sensor

by on April 8, 2023

This doesn't mean it can't be done. Perfectly Taipei - 25 Must-See City Highlights | Taipei Travel I tried holley tech support, no answer and put on hold for hours. Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. Are you holding your RPMs back with the MSD for some reason? 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. YES! Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. 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. Sniper EFI Releases new Stealth 4150 Models! Holley EFI 534-199 Wideband Oxygen Sensor Extension Cable PS, Once someone has a good 270/350 tune, everyone can use it. #1. It will not fit on round or oval risers without a suitable flat area. I recently installed the sniper setup on my stock 71 duster 340 4 speed. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. Initial Calibration in Basic Configuration. Product Q&A . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. So please, If you have problems registering or can't log into your account, please. This really applies to any O2 sensor regardless of EFI system. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Let me know how I can be of assistance. I installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. Vega$69. Other countries likely have simmilar approval processes for marine engines. Holley EFI Sniper O2 Sensor Install - YouTube Follow USCG rules about materials and fittings. Specs. 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. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. Tech Resources. 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. Douglas Cline. 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. So far so good. I've got the Howell EFI adapter installed in the riser of some standard Inboard Manifolds and it works great. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. Each engine has the Holley marine 2 barrel carburetor. I will change and be using an in-tank pump when I install the new 120 gallon tank this winter. Capability Range: Professional 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. Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. 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. Thanks for the heads up. *Possible delays due to Covid-19 click for more information. They are the only ones got me a holley usb to can cable fast. They have been working out well for a few years now. It has about 18 hrs to date and is working great. holley sniper efi Holley Sniper EFI Self-Tuning Master Kit - Black Ceramic Finish $1,475.95 Part# 550-511K holley efi 100 PSI Stainless Pressure Sensor $155.95 Part# 554-102 Are you waiting to convert your carbureted vehicle to Sniper EFI, but don't like the idea of mounting an external fuel pump? Holley Sniper EFI Oxygen Sensors 554-155 - Summit Racing Equipment Holley EFI has the solutions you need to get your project up and running better than ever! They have mods that help. Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. Miami, FL. Holley Sniper EFI Oxygen Sensors 554-155 Systems that were already designed for marine efi. Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Replacement Sniper and Terminator X O2 Sensor. Find a lower price anywhere and we'll beat it by 5%! Mine is right where Steamers is, and works well with my AFI TBI. If it's working to prolong the life of the sensor in the AEM Wideband kit then there is no reason to believe it wouldn't work with any other sensor. If he wants to run in closed loop and have the system adapting to conditions at all times, the minute he fouls he is dead in the water. 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. $43 per night (Latest starting price for this hotel). Anti-Seize pre-applied to sensor threads. Sort. Engine Startup Tuning for Sniper and Terminator X Stealth Owners 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. One workaround was to leave it in gear and slow to a stop and push the clutch as RPMs drop . I think I could run more boost but it's a real hand full right now. Having selecting USCG-approved components, and sourced your O2 sensor adapter, there is but one more challenge--tuning. That sounds like one solution. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues. Some logs have water up to just short of the port. 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. Spray a rag down pretty good with brake cleaner. http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to Sniper EFI Installation Guide. I also capped off the regulated return line with a hose, clamps, and chamfering bit. The first option is to just buy the injector body and the controller with the wiring harness and sensors. The Sniper EFI throttle-body drops in place of your . Do you offer a USCG fuel pump kit? I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! I am just now ready to do the tuning this weekend. O2 sensor failure on a Holley Sniper EFI - YouTube However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. All times are GMT-6. Prime cannot be adjusted on this old unit. May God's grace bless you in the Lord Jesus Christ. The clamp-on that came with mine wasnt a good fit on my 2" pipe. Do you recommend in-tank or external fuel pump? i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. Add to Cart . May 19, 2021. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Sent unit back to Holley. I will keep the in-line pump for a spare. You can selectively provide your consent below to allow such third party embeds. I have searched thru the forum as much as I can, with not much luck. Maybe this one has a shorter cable? I really dont want any issues on the whitewater lol Innovate Motorsports HBX-1 Bung Extender. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. AFR was 19 area. 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. . The included fuel system places a 340LPH fuel pump in the tank, which can easily be . The new Exhaust manifolds will have wideband O2 bungs for tuning. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I received my replacement TPS and O2 sensor. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. Thinking about this I think this will work very fine! *Possible delays due to Covid-19 click for more information. Have engine apart and head checked and cleaned at machine shop. 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! 2. 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. Will I be able to control my ignition timing with the Sniper? EFI System Pro also has a good bit of tech info on their website. is donald smith still alive; julie grant court tv cheerleader Increasing efficiency is always a good idea. B/c what it sometimes perceives as a lean spike is actually raw fuel with no oxygen. Thanks. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. There are drawbacks to that (as your tuner can explain in more detail) but it is doable, provided the system is correctly tuned initially. Note the temperature sensor mounted on the back of the driver side head in the above photo. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. 2 Reviews. If you find that please let us know. It should be pretty straight forward what each of these values do. Wideband Realities: The Truth About Oxygen Sensors - EngineLabs I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. Good luck! By Joshua C on August 10, 2021 | Verified Owner, Worked right out of the box. My question is concerning what happens a year later, when I have a top-end swap . As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. - Do you know of a Carburetor Builder who has addressed the Coast Guard certification issues with the Sniper EFI? A third option would be to run your EFI system without an O2 sensor at all. Supports up to 650hp with Four 100 Lb/Hr Injectors! A 90-degree V-6 has three shared crankpins set 120 degrees apart. In order to do this, it heavily relies on proper O2 sensor placement. Copyright 2022 Holley Performance Products, Inc. All right reserved. 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. "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. But this also makes me wonder what you did for the O2 sensor. $119.95. Holley sniper help!!!! | ClassicBroncos.com Forum Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. 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. I have installed the Holley hp efi MPFI on my twin inboard mercruiser 350ci 270 hp. I have a 74 bronco, 302, mild cam. 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. Maybe going all the way to the front is the way to go? As far as a sensor goes, absolutely nothing. suspect bad o2 sensor with Holley efi | Yellow Bullet Forums Bolt-on carburetor style EFI for your classic car or truck. #HM206 - ADAPTOR, O2 SENSOR for Marine use - Howell EFI Conversion I found this in the instruction manual for the older commander 950 system. This is great information that can only get you closer to an ideal solution. It's a compact HP pump and cooler assembly. Shop Oxygen Sensors at Summit Racing. Have you visually verified that all your injectors are spraying? Only show this user. In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey! Seemed to be getting too much fuel on hot starts and flooding out, could get it to go by putting it to the floor while cranking as Action mentioned. Holley efi behavior with bad o2 sensor, safety feature I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. Other than the constraints provided in the article above I see no reason why this wouldn't be a great upgrade. Sniper EFI - Holley In the case of the car, you can generally get out and walk (run?) Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. 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. Replaced and gapped to .45 all spark plugs. This is the 02 sensor adapter I used. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? You'll also notice that the firing order is 1-6-5-4-3-2. 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. For the most part, the small harness is plug-and-play. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). An adapter harness is available to connect this distributor directly to the Sniper EFI throttle body. If I am reading your post correctly you are using two separate o2 sensors when using headers ? Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. 02/25/2020. You must log in or register to reply here. Newer ECMs have all the options to configure these functions. 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. The Sniper EFI could very well be one of the easiest to set-up fuel injections systems ever. How To Properly Place and Install an O2 Sensor - Holley Thanks for that, Danny. Purely coincidence about the '2300' number. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. It could be an instant fix. Fine tuned the timing to 12-15 degrees. replaced my original terminator x sensor that was mounted in an exhaust that took on some water and killed the original sensor. My hand is holding the connector to the sensor. I have also picked up another .5 gallons per hr to about 9.25 gph. Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Hello Chris,Ontario's boating season is about to launch for another year.Do you have any good news to add to your above article, any new marine friendly TBI products?In '08,I installed a Holley 21-700 TBI with the o2 mounted in the manifold to Holly specs. running holley sniper without o2 sensor - plural.works Holley Sniper EFI Wideband Oxygen Sensor. If you have long tube headers, mount the sensor approximately 6-10" after the collector. (probably with the edelbrock marine 2506 intake). 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. Advertising . Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Hi all, i'm contemplating doing a sniper quadrajet swap onto my volvo penta 5.7 GL 2bbl holley motor in my 1997 cobalt 200 with the DP-S outdrive. away. Stay up to date with the latest releases, events, promotions and more. 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. I did--- Save your money and piece a fuel it together. I just discovered that was the case with my Fitech.

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