Additionally, the Pro-M EFI PCM uses an adaptive strategy to learn your engine's fueling needs. It is one of Ford's longest running and most successful engines to date. Learn More. Nothing keeps it from happening. What is the best aftermarket fuel injection for a 351? We always know exactly where we need to be in the base fuel and base spark tables because we are constantly monitoring actual ingested air mass and using this to calculate Load. 5.7 Mercruiser EFI Conversion | Boating Forum - iboats.com This results in the most accurate fueling calculations in the industry. That sensor mount looks like they used a spud washer assembly off a urinal! 1) Read the thermometer inside your house. It is important to understand that the proper a/f ratio, and the proper spark advance are dictated by nothing other than Load. In order to participate in our discussions, you must register for a free account. I got tired of adjusting the carb at each lake I went to. The process Tell the ECU what air/fuel ratio you want under the varying operating conditions. It really woke up my stock 350. Some people spend that much on a stereo Transmission & Drivetrain. It just doesnt get better. I have a '86 Martinique, that I am selling, but I may keep and do a conversion. After looking into it looks like its about $2000. Want to learn more? You know, most efi parts on efi boats from the factory don't have specific marine ratings and are simply automotive items. For nearly 30 years now, Pro-M Racing has been selling Mass Air Meters that can support as much as 2000 horsepower. He never got it running well enough that he was happy and got tired of fighting the battle and sold it. The OEM method for using Speed Density is obviously not practical in the aftermarket since every engine will be different. Advanced boost control for both turbo charged and supercharged applications, that actually works and is easy to use! The tuner still has to dictate to the ECU what the air/fuel ratios will be, and without a value for load, its all just guesswork. OPTIMUM MARINE - Affordable Fuel Injection AFI is proud to introduce our new line of Throttle body fuel injection kits The optimum series is our new line of throttle body injection kits that retain the advantages of affordable fuel injections' Legacy throttle body injection kit. The problem is that it is a gas sucking pig. Operates GM engines with or without ECM controlled ignition. The Pro-M EFI PCM detects short circuits and will shut down that PCM driver if a short is detected. Pro-M EFI custom 1000 CFM 4 bbl throttle body. Thursday 9-5 4) Compression The air fuel mixture must be compressed in order to create the powerful explosion necessary to make power. It is made on the same assembly line as the Ford ones are. Yeah, definitely keep us posted. OPTIMUM MARINE - Affordable Fuel Injection There is no such thing as self-tuning. We ship every Pro-M system with all the fuel, spark, and modifier tables written for you. Comes complete with idle control motor, throttle position sensor and 3 vacuum ports for your fuel pressure regulator, PCV valve, power brake booster, etc. For an engine to run, you must have four things. What is your Rear Differential Gear Ratio? The only difference is some parameter changes due to the low thermostat temperatures. No spark boxes needed. Gotta agree with East TX Skier! Harness includes diagnostic connector, and diagnostic is similar to 1986-92 GM pickup. Saves fuel! Affordable Fuel Injection (AFI) was founded in 1997 with one goal in mind: offer fuel injection systems that allow superior performance to traditional carburetor systems, for a variety of applications, and make it affordable. For example, the target air/fuel ratio at idle is typically 14.7:1, but for a variety of reasons, the actual a/f ratio may not be at the targeted value. I do. This topic has been discussed before you can use the search box to get that info. The fuel rails and individual injectors provide such smooth drivability and effortless, instantaneous cold startup. I got it for $1600 but that was ordered before the price change. Advanced data logging feature built into the software. Dont expect it to be. How about spark advance? Marine Engine Depot. Fuel Injectors Before the Windsor arrived, the first 351 cubic inch engine found in the Ford F-series was based on the Ford M-block, destroked from a 400 block to make 351 cubic inches. Fully programmable progressive nitrous controls. Never miss a sale on new parts, tools, and more! Instead, buy a new QuickFuel carb, Edelbrock intake manifold and new GT-40P heads.