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. I also capped off the regulated return line with a hose, clamps, and chamfering bit. Sorry for the late reply. Price Point: $, Advanced throttle body injection systems capable of transmission control and more. See Details. Specs. turn on the ignition.but do not start the engine. They have been working out well for a few years now. 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. 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. Sniper throttle body linkage opens all four barrels evenly when you depress the throttle. 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.
Holley Sniper EFI - Page 3 - Offshoreonly.com I'm 3" down from the bottom of the flange to center of bung. I installed the adapter and elbow so it's at an angle above the entry point. excessively rich mixtures), Mechanical shock (e.g. I am a competent mechanic and I have checked all the usual suspect items. He knows his stuff, gets back quickly to you, etc. This is great information that can only get you closer to an ideal solution. I want to register an account for free right now! The included fuel system places a 340LPH fuel pump in the tank, which can easily be . Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. Are you running the entire system? 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? Holley part number 554-155. 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. Capability Range: Advanced It may not display this or other websites correctly. YES! EFI is the wave of the future. Now the lower cost Holley Sniper advertised for March 31 2016. Thanks for the compliment--we look forward to your feedback! For complete information about the cookies we use, data we collect and how we process them, please check our, actual instructions in flowcharting are represented in, Why Is Dave Blankenship Not On Oak Island Season 8, rhode island groundwater classification map. I think I could run more boost but it's a real hand full right now. Holley's self learning system is a blessing and a curse. For a better experience, please enable JavaScript in your browser before proceeding. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. 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. .
We Test It: Holley's New Sniper EFI - MotorTrend Sensors: Fitting: Threaded O2 . 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. I thought about adding some sort of extra protection but never did.
EFI Swap | Shamrock Boat Owners' Club Increasing efficiency is always a good idea. This doesn't apply to race boats.
Holley EFI Sniper O2 Sensor Install - YouTube 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. It just means that if you are thinking you'll install this, crank it, and pull away from the dock with complete success you might be in for some disappointment. 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. If you find that please let us know. Register now for free!) Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. 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 . Currently has 2 bbl carburetor and mechanical distributor, mechanical fuel pump for 165hp. I'm guessing by snail, that's another name for the riser?
Holley sniper help!!!! | ClassicBroncos.com Forum 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.
Using the throttle body's fuel pressure regulator will require a 5/16" fuel return line to the tank. And it is timing that is equally critical to best performance and fuel economy. 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. CUSTOM ART FOR CUSTOM NEEDS. Sponsored Links (REGISTERED USERS DO NOT SEE THIS POST/AD! Innovate Motorsports HBX-1 Bung Extender. Installed the sniper/MSD combo on my mildly built 460 KEM. As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. 10 min read. I know from some of the other posts, there have been WBO2 sensor issues. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace.
Holley Sniper O2 sensor replacement - Club Cobra Holley sniper efi error 21 - bqfoki.lesthetiquecusago.it WBO2 Sensor 17025 Bosch 554-155 Holley - EFISystemPro.com From there, the idea is that it will self-tune to the requirements of the engine. Then they had it repaired and back to me in 5 business days. Sorry for the late reply, Douglas. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. It flows 850 cfm and can support up to 650 horsepower. Ref: https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/I heard of the new Sniper EFI from some chatter on OffshoreOnly.com. Other? Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. I do agree if he can get it tuned prior to fouling he can lock that tune and run in open loop. quick fuel. For a better experience, please enable JavaScript in your browser before proceeding. It will crank and run great for 2-15 seconds then die. Boats don't cruise at 60mph up and down hills. the engine not running. Part Number: 510-554-155. The Tech Tips and discussions are also great! The light shines in the darkness, and the darkness has not overcome it.
Terminator X O2 sensor Off the shelf replacement? Its the Holley Pro Jection TBI mentioned by the above poster. Is this a good upgrade? This is the 02 sensor adapter I used. May God's grace bless you in the Lord Jesus Christ. https://www.efisystempro.com/efi-pro-hangout/sniper-installation-tips-holley-tom-kise, https://www.efisystempro.com/efi-prng-engine-startup-sniper-terminator-x-stealth. Capability Range: Professional p.s. Advanced throttle body injection systems capable of transmission control and more. Conditions when closed loop o2 should be turned off. Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. 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 hose, clamps, and chamfering bit.In the settings I chose closed loop disabled (set to open loop) and also set learn mode to disabled. *Possible delays due to Covid-19 click for more information. The test run was great, they have never run so well even when they were new with carbs. The spark must be manually tuned. you don't want to read that loss. There are five significant plug connections to make from the throttle body: Plug into the oxygen sensor. i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. For gourmands, night markets not only offer scrumptious small . In a horizontal or if pointed upwards it can collect exhaust condensation liquids upon start up.
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. 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). Warranty Information. Do you recommend in-tank or external fuel pump? If there's anyone willing to read a bit and offer advice about what to do when doing a top-end swap (when you may be in a scenario with a new top-end that's the EFI isn't calibrated for AND you can't have an WBO2 sensor connected), please let me know. I am a competent mechanic and I have checked all the usual suspect items. Bolt-on carburetor style EFI for your classic car or truck. Tech Resources. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle, By Corey A on June 4, 2021 | Verified Owner. . Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. Add to Cart . Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. Part# 534-199. A forum community dedicated to performance boat owners and enthusiasts. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. In this case, the prime shot is good for cold, but too much for warm. HP comes from torque and rpm and rpm breaks things and increases wear. I've dunked mine lots of times. Advertising . I recently installed the sniper setup on my stock 71 duster 340 4 speed. All sensors are tested to ensure they accurately report critical engine data to the . Fine tuned the timing to 12-15 degrees. 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 - Oxygen Sensor Location Thread starter GA Architect; . Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. 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. Idle and off-idle performance (particularly as the engine goes into gear.) Holley Sniper EFI Wideband Oxygen Sensor. 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. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. Let me know how I can be of assistance. Holley recommends a 3/8" fuel supply line. . Holley EFI Oxygen Sensor. I'm looking for some more practical and scenario-specific advice; that's one small piece of it. Supports up to 650hp with Four 100 Lb/Hr Injectors! 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.
Replaced O2 sensor but continued to have AFR issues running too rich. 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. I installed a holley sniper kit. Any exhaust down at engine level or lower will definitely get at LEAST some steam. 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. When I went to Holley HP, I found an adapter by Innovate that is designed to draw air out the exhaust stream and away to the O2 sensor. I have a 74 bronco, 302, mild cam. No matter what I do, it will not start. Free ground shipping regardless of order size! 2014 FJ Cruiser - White - 4X4 - Loaded - . You are using an out of date browser. Having selecting USCG-approved components, and sourced your O2 sensor adapter, there is but one more challenge--tuning. Sniper EFI 2300 Marine. As far as packaging goes, one comes in a Bosch box, the other in a Holley package. Could show a lean condition when in fact it really isn't. 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. Part# 50-5009QFT. Introducing Sniper EFI Master Kits, with a Returnless Retrofit Fuel Module. For now I have a genuine bosch O2 and Standard Automotive TPS installed. Good luck! Followed all the instructions to the letter. Followed all the instructions to the letter. 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. Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. I am happy with Holleys no hassle replacement of the parts. As far as spark control, the Sniper will let you tune those 4 points, nothing else will. When either of these operating temperature ranges is exceeded, the sensor can no longer be . I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. Master ASE tech since 91. 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.
Troubleshooting Holley Sniper that hesitates on acceleration 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. May 19, 2021. Advanced throttle body injection systems capable of transmission control and more. Product Q&A . 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. test the sensor.. for a basic pass/fail of the sensor. Have you visually verified that all your injectors are spraying? 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. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. EFI Systems based on Holley's world-class Dominator and HP ECU's. -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? non biased Shelby Cobra related site! 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. Note, that is not a crack in the exhaust manifold, just a shadow from a casting flaw. Sniper EFI Installation Guide. 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. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Anybody got a good 270hp 350 tune yet?I installed sniper efi on my boat runs good but feel like the wot should be better need to get the sniper controlling spark is my thoughts the old thunderbolt is either not great or timing wasn't right when I bought the boat but she runs great I just think this engine has more in it then I'm getting out of it at this time any tuning and timing advice would be great considering I'm awesome with carb n hei diet but new to efi and boat timing curve but not an idiot so I say. Comes VERY complete.throttle cable bracket, kickdown bracket, base plate studs & nuts, heat shrink type connectors, and pretty decent instructions as well. 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. Holley Oxygen Sensor O2 Bung Weld-In Style; Larger Image. Anything else is going to be a frustrating recipe for for failure. 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. Sent unit back to Holley. I will change and be using an in-tank pump when I install the new 120 gallon tank this winter. Items 1 - 21 of 21 Items. Tips on how to measure the correct location and other considerations when welding in an O2 sensor bung. This was for MPFI. I will keep the replacements as spares. Anyone ever converted a 1987 3.7L 4cyl Mercruiser engine to EFI. This completes the basic installation of the Holley Sniper EFI 4150 Super Sniper 1250/650 kit. Holley EFI requires several pressure inputs in order to run an engine. It is possible for the ECU to have an internal failure that can kill O2 sensors. functioning controller during engine operation. You must log in or register to reply here. They have mods that help. 3. I've seen O2 sensors in water jacketed headers that have worked fine for years. So I bought the progressive linkage but you then have . The oxygen sensor should be mounted at a point where it can read a good average of all the cylinders on one bank. Got a picture?
running holley sniper without o2 sensor - dowdcreative.com Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. Car runs perfect . EFI Systems based on Holley's world-class Dominator and HP ECU's. 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, He is a wizard, might be able to give you some pointers, will ask you what version of the software you are on, whether you're running the progressive adjustable linkage, etc. I installed a holley sniper kit. Phil said water would still get up over the snail and knock out the sensor. The new throttle response was significant,fuel saving and gave me a turn key cold start.Still I can't have an idle speed under load and a turn key warm start. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. $102.95. I want to register an account for free right now! I have about 30 hrs on the unit and it just keeps getting smoother with every hr of run time. One workaround was to leave it in gear and slow to a stop and push the clutch as RPMs drop . We can hear the initial fuel spray into the body, but it appears that its not enough to start the engine while hot. It's a compact HP pump and cooler assembly. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. 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. Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. He had one there that was run on a dyno then the fuel map was set and shipped back.
Sniper EFI - Holley I'm using the NTK sensor. With a bad TPS you will have to manually prime to try and get it . Find a lower price anywhere and we'll beat it by 5%! Given the traditionally poor fuel economy of carbureted marine engines, we feel your pain. holley efi. Get fast, Free Standard Shipping on orders over Summit Racing Equipment from $99 -- no shipping, handling, or rural fees! Much of the system is encased right inside the throttle bodyand that includes the ECU. The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. Incense-veiled temples with exquisite carvings and paintings dating back to dynastic times blend seamlessly in streets of the modern city.
O2 sensor failure on a Holley Sniper EFI - YouTube Amazon.com: Holley EFI Wbo2 Sensor, Sniper Tbi : Automotive How To Properly Place and Install an O2 Sensor - Holley One comes in the form of a Marine O2 Sensor Adapter from the folks at Howell EFI.
running holley sniper without o2 sensor - plural.works O2 sensors are water proof. EFI EFI kit electronic fuel injection. EFI System Pro also has a good bit of tech info on their website. Has been since the 80's. Prime cannot be adjusted on this old unit. 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. Precisely Adam. Are you holding your RPMs back with the MSD for some reason? Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. Add To Cart. $43 per night (Latest starting price for this hotel). But it is going to be a little tricky. PS, Once someone has a good 270/350 tune, everyone can use it. Fortunately, it turns out there are some options. The first option is to just buy the injector body and the controller with the wiring harness and sensors. One of the most common causes of poor idle is improper O2 sensor placement or trying to run closed loop at idle . 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). is donald smith still alive; julie grant court tv cheerleader Sniper EFI Releases new Stealth 4150 Models! Most of Holley's EFI systems provide a Setup Wizard that builds a base configuration file that allows you to start the engine and operate the vehicle. Homemade body parts replace the originals as they rot away but it's a 40 on the inside. I will be calling around to see if I can find someone to help that has experience. Sniper EFI 4bbl Marine. 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. 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. Sniper EFI 2300 Marine. So please, If you have problems registering or can't log into your account, please. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL.