This was for MPFI. While those work great on an automobile, you likely won't begin to get these marine installations setup with a handheld. 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. 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 2300 Marine. 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. Wherever you go, the cultural kaleidoscope of Taipei showcases exhilarating diversity. O2 Hotel Taipei Main Station - KAYAK But it is going to be a little tricky. We may earn a small commission from affiliate links and paid advertisements. This step is only for those installing their Super Sniper EFI on top of a draw-through or Roots-style blower. 3. i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. Wideband Oxygen Sensor Extension Cable. away. I have a boat with twin 3.7 Mercruisers. Wondering how you are progressing with this? Those "flames" are still consuming O2 that would otherwise not be read by a sensor in the correct location. But MAP sensors are very easy to physically implement and are inexpensive. It flows 850 cfm and can support up to 650 horsepower. Capability Range: Moderate In Stock. looking at doing the same. Holley EFI 534-49 Holley Oxygen Sensor O2 Bung Weld-In Style Staff Writer. 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! Price Point: $$$. John 1:5, 1969 FJ40 2F with Holley Sniper EFI, Power Disk Brakes Front & Rear, Downey, Your post has peaked my curiosity. Replacement Sniper and Terminator X O2 Sensor. Marc, you don't mention which system you installed but the Holley systems are fully configurable. 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. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. 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. This page was generated at 08:35 AM. Put an end to cold start issues, hesitations, vapor . 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, 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. Bolt on 4150 Flange Carburetor Replacement. 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. Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. I thought the clamp on style mount was a good idea in case the threads got buggered up when a sensor change might occur, and the threads are rusted up by then. Spray a rag down pretty good with brake cleaner. QFI-500 Oxygen Sensor. 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? Features: . I thought about adding some sort of extra protection but never did. Purely coincidence about the '2300' number. - The sales brochure refers to Integrated Ignition Timing Control and Coil Driver. You have to one big hole in the riser, then you reach the cooling water, and one little hole in the next part of metal: now you reach the exhaust gasses. Q3. They have mods that help. The Tech Tips and discussions are also great! Installed the sniper/MSD combo on my mildly built 460 KEM. Running? Thanks. 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. So I bought the progressive linkage but you then have . Previously, none of Holley's throttle body injection (TBI) systems, such as the Terminator EFI were USCG approved (even though the HP and Dominaor ECU's themselves are.) Affiliate. For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. . I had questions on the suggested "Marine O2 Sensor Adapter" from Howell EFI (https://howellefi.com/product/adaptor-o2-sensor-for-marine-use/), but when I look to the pictures, I understand how it will work. Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Capability Range: Advanced In the end I ended up using a Fuel Control cell made by Pleasure Craft Marine for their 351W engines. The opposing pistons share a crankpin the way they do in a V-8, but the fact that there are only three cylinders on each bank means that the plugs fire at 90-150-90-150-90-150 intervals. The Holley Sniper system sells for $999.95, installs in under 2 hours, and requires only an O2 sensor, a temp sensor (both included), an electric return-style fuel pump, and four-wires to connect.. Quote Reply Topic: Holley Sniper Posted: Jan/05/2022 at 2:01pm . Holley Sniper - Oxygen Sensor Location | IH8MUD Forum Price Point: $$$. the motor has the following mods, Aluminum heads, Performer intake, Sniper and MSD ignition module. 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. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. PDF Holley Sniper Installation Supplement You'll also notice that the firing order is 1-6-5-4-3-2. (Assuming it actually releases in November and there are enough units for me to purchase and receive one in December). Maybe going all the way to the front is the way to go? Holley Sniper EFI System is Easy, Budget-Friendly Path to Fuel I recommend popping for the Master . How To Properly Place and Install an O2 Sensor - Holley Holley sniper help!!!! | ClassicBroncos.com Forum The clamp-on that came with mine wasnt a good fit on my 2" pipe. Sorry for the late reply, Douglas. 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 . 4. I have not gone back in to try to fine tune them. I have a 74 bronco, 302, mild cam. Miami, FL. Boats don't cruise at 60mph up and down hills. It could be an instant fix. 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. I only have a stick welder and didn't trust myself on the thin pipe so I brazed it in. Innovate Motorsports HBX-1 Bung Extender. Yes! Add to Cart . Fuel economy went from 12.5 to 13.5 gph to 10 gph. If you have long tube headers, mount the sensor approximately 6-10" after the collector. It should be pretty straight forward what each of these values do. It flows 850 cfm and can support up to 650 horsepower. 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. Everything about the fuel prime shot can be adjusted. Items 1 - 21 of 21 Items. About your only location is in that short area from the log to the port face. 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. Holley EFI Oxygen Sensor. The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. HP comes from torque and rpm and rpm breaks things and increases wear. I tried holley tech support, no answer and put on hold for hours. This Video Shows Ideal O2 Sensor Placement! 10 min read. Your talking flames at that point, and it will definitely have an effect on the reading. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! I myself will convert my 2 302's (Volvo Penta 5.0 l AQ231A) from carbs to EFI; I must find out everything before I start work on the engines, then I am satisfied to start. I am a competent mechanic and I have checked all the usual suspect items. 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. An adapter harness is available to connect this distributor directly to the Sniper EFI throttle body. Categories. I have tried several different settings to get it going, no luck. 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. Holley efi behavior with bad o2 sensor, safety feature The World's largest I will let you know what happens. Welding in an O2 Sensor Bung for a Holley Sniper EFI System Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. For the most part, the small harness is plug-and-play. Only a few hours on the motor but so far so good. Not always the case with a boat. In order to do this, it heavily relies on proper O2 sensor placement. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? With a bad TPS you will have to manually prime to try and get it . Holley EFI Sniper O2 Sensor Install - YouTube All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. EFI is the wave of the future. . Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. Held finger over IAC and it ran better, the thing was just wide open all the time and had nothing to suck. 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 installed a Holley sniper system on my car and I've been fighting it for 2 weeks now. Has been since the 80's. For gourmands, night markets not only offer scrumptious small . My bet based on longer pump run, to make pressure, you have a leaking injector. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. This really applies to any O2 sensor regardless of EFI system. 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. Thanks for that, Danny. (REGISTERED USERS DO NOT SEE THIS POST/AD! non biased Shelby Cobra related site! The Sniper will do that. We also use content and scripts from third parties that may use tracking technologies. #3. (If I am incorrect I heartily invite your comment at the bottom of this article!) Are you holding your RPMs back with the MSD for some reason? I'm looking for some more practical and scenario-specific advice; that's one small piece of it. EFI EFI kit electronic fuel injection. Dec 28, 2016. #HM206 - ADAPTOR, O2 SENSOR for Marine use - Howell EFI Conversion In this case, the prime shot is good for cold, but too much for warm. A 90-degree V-6 has three shared crankpins set 120 degrees apart. 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. 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).
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