Part# 534-199. 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. 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. I'm 3" down from the bottom of the flange to center of bung. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Sorry for the late reply. 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! All sensors are tested to ensure they accurately report critical engine data to the . I installed a holley sniper kit. Everyone else was backordered several months. A 90-degree V-6 has three shared crankpins set 120 degrees apart. The target A/F value based on load or MAF cfm, and engine speed. 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)? replaced my original terminator x sensor that was mounted in an exhaust that took on some water and killed the original sensor. Fuel prices at the marina are usually about a dollar a gallon more than at the local Racetrac/Wawa/wherever, and even more if you wisely opt for ethanol-free fuel. Add To Cart. Next, the new unit was installed onto the manifold. They have been working out well for a few years now. 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? If the indicator reads "LOW Err" double check the connection to the CTS. Sniper EFI Installation Guide. Vega$69. 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. EFI Systems based on Holley's world-class Dominator and HP ECU's. . For a better experience, please enable JavaScript in your browser before proceeding. It's a compact HP pump and cooler assembly. The truck started fine after install, and ran down the road ok. Good luck to all. You should then have at least 18-24" of pipe after the sensor. But you've found the right one for your Holley Sniper EFI System OR your Terminator X EFI System. Affiliate. You really want a bigger engine. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. 2 Reviews. That sounds like one solution. The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. Still needs a EFI pump and return line. . 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. Bolt on 4150 Flange Carburetor Replacement. I had an o2 sensor fail on a pass yesterday, and flatline at 11.5afr. Marc, you don't mention which system you installed but the Holley systems are fully configurable. Did you use the Holley fuel pump and have you had any issues with it? 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). Staff Writer. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. YES! Service Oxygen Sensor for Sniper EFI Systems, Service Oxygen Sensor for Terminator X Systems. 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. No worse than taking the reading in the intake manifold cross over. One of the most common causes of poor idle is improper O2 sensor placement or trying to run closed loop at idle . turn on the ignition.but do not start the engine. PS, Once someone has a good 270/350 tune, everyone can use it. 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. Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. running holley sniper without o2 sensor - dowdcreative.com The wiring was a bit of a mess. Part# 554-155. 3. Bolt-on carburetor style EFI for your classic car or truck. 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. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. I have not gone back in to try to fine tune them. We may earn a small commission from affiliate links and paid advertisements. Douglas Cline. Full time feedback from the sensor is what the computer uses to refine the fuel table. AFR was 19 area. Stock manifolds? After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . If you call, they usually let you put in your name and they get back to you. I purchased the Holley HP MPFI system and went to the lake with it. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. 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. Increasing efficiency is always a good idea. 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. Sniper EFI Quadrajet Marine. To take advantage of all the site features, please take a moment to register. test the sensor.. for a basic pass/fail of the sensor. In order for it to work as designed the O2 sensor has to be installed in a dry exhaust system and needs to be placed 1-10in from the collector in the headers. Is Holley working on a complete marine package or planning to in the future? It is better to remain silent and be thought a fool than to open one's mouth and remove all doubt. Mark Twain, The goal in life: To die young as late as possible. Capability Range: Advanced Can anyone share their experiences with this type of setup? When it did keep running, the headers all started to smoke. 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. The spark must be manually tuned. The Ford 2300 engine uses a Holley carburetor, but it is in fact a licensed copy of a 32/36 Weber. The O2 sensor burned out immediately. Innovate Motorsports HBX-1 Bung Extender. Q2. It will flood itself out and won't start back, just crank and crank. The sniper fit perfectly on the intake. the motor has the following mods, Aluminum heads, Performer intake, Sniper and MSD ignition module. Maybe going all the way to the front is the way to go? 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. Pink switched power wire, this needs to be connected to a point that is 12V in run and while cranking. I want to register an account for free right now! You must log in or register to reply here. They are about 4 inches long, in-line between the log and manifold. Emissions. Then if you are do you just wire the o2 sensors in parallel or do these EFI kits have inputs for more than one sensor. This free oxygen is picked up by the O 2 sensor and determined to be indicative of a lean AFR condition when, in reality, the engine could potentially be running slightly rich. Holley EFI Sniper O2 Sensor Install - YouTube quick fuel. Has anyone run an O2 sensor in an EFI on a marine engine? The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. Not always the case with a boat. 1985 fj60 (sold back to Toyota), 1997 fzj80, 1971 fj40 with 75 2F. 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. 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. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. Thanks for the feedback on this adapter, Donald. 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. So please, If you have problems registering or can't log into your account, please. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. *Possible delays due to Covid-19 click for more information. . Bolt-on carburetor style EFI for your classic car or truck. 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. I am a competent mechanic and I have checked all the usual suspect items. I am interested in upgrading both engines with Pertronix Ignitor or Ignitor II ignition and the Holley Sniper EFI 2300 and the Howell EFI marine O2 sensor adapter. 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. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. And it is timing that is equally critical to best performance and fuel economy. I installed a holley sniper kit. I'm guessing by snail, that's another name for the riser? This doesn't apply to race boats. I have a 74 bronco, 302, mild cam. Capability Range: Moderate When problem-solving this type of issue, consider when and how you could use a work-around. Holley EFI has the solutions you need to get your project up and running better than ever! 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. The Sniper EFI throttle-body drops in place of your . A forum community dedicated to performance boat owners and enthusiasts. The fuel lines and fittings are 3/8s with 8AN fittings and everything on the 60 requires 5/16 fuel line with 6AN fittings) Holley Sniper EFI 550-849 Holley Sniper EFI 2300 Self-Tuning Kit - Shiny Finish. As far as a sensor goes, absolutely nothing. The first option is to just buy the injector body and the controller with the wiring harness and sensors. Also the progressive link. You'll also notice that the firing order is 1-6-5-4-3-2. About your only location is in that short area from the log to the port face. Other than the constraints provided in the article above I see no reason why this wouldn't be a great upgrade. . Pay close attention to the instructions on O2 sensor placement. $43 per night (Latest starting price for this hotel). This page was generated at 08:35 AM. Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. It's fast, simple and absolutely free. But MAP sensors are very easy to physically implement and are inexpensive. (probably with the edelbrock marine 2506 intake). Features: . Maybe this one has a shorter cable? 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. Sponsored Links (REGISTERED USERS DO NOT SEE THIS POST/AD! Is this a viable upgrade for my boat? Have to replace head gasket. I was mocking it up at the time. You can selectively provide your consent below to allow such third party embeds. Put an end to cold start issues, hesitations, vapor . Do you recommend in-tank or external fuel pump? Dec 28, 2016. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. Part# 550-511. However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. By bypassing the built in pressure regulator in the fuel module(allowing full flow and pressure), using 3/8 hard lines to/from the sniper to meet CG rules( no soft lines on the engine block)using the snipers fuel pressure regulator, This is as close as I can come to safe. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. Price Point: $$$. EFI is the wave of the future. Option 1 is to purchase and install one of the Holley EFI Dual-Sync Distributors on your engine. 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? Perfectly Taipei - 25 Must-See City Highlights | Taipei Travel That's great--we look forward to your results! 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. Holley Sniper EFI Self-Tuning Kit - Shiny Finish, Holley Sniper EFI Self-Tuning Kit - Black Ceramic Finish, Holley Sniper EFI Self-Tuning Kit - Classic Gold Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Shiny Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Black Ceramic Finish, Holley Sniper EFI 2300 Self-Tuning Kit - Classic Gold Finish. RPM going up and down , miss firing and backfiring. I installed one also on mercruiser 260 hp. Then if that doesn't work call the tech line they are great! running holley sniper without o2 sensor - plural.works The wide band O2 sensor is required for initial running and calibration. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. Holley EFI Usb/Can Harness, Sniper Tbi. But this also makes me wonder what you did for the O2 sensor. Do you offer a USCG fuel pump kit? O2 Hotel Taipei Main Station - KAYAK Advertising . My hand is holding the connector to the sensor. Car runs perfect . Parts List: 1) Holley Sniper 2300 EFI Kit (Do not buy the kit with fuel lines and pump etc. Without Headers Steamers location (above) is perfect, up close to the engine where you . Everything about the fuel prime shot can be adjusted. I will change and be using an in-tank pump when I install the new 120 gallon tank this winter. The truck started fine after install, and ran down the road ok.
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