Manley RaceFlo Valves at Competition Products Chev SB, Chev BB, Ford SB. View and Download Edelbrock PROFLO XT 3527 user manual online. The Edelbrock ProFlo XT system interprets overall engine operating. Proflo Quick Tuning. Edelbrocks Pro Flo XT EFI Ford. Muscle. All the way back from the days when raw horsepower dominated the streets, muscle cars have always had their engines topped off with monster four barrel carbs and aftermarket intake manifolds. Every gearhead with a beefy daily driver migrated to this kind of time tested carbureted fuel delivery system because it was reliable, simple to adjust and capable of making high horsepower. Those days have forever been changed with a bolt on, ready to use out of the box electronic fuel injection system from one of the automotive worlds leaders in carbureted fuel systems. Ironic and paradoxical as that sounds, Edelbrock has been a player in the fuel injection market since 1. The Evolution of Edelbrocks Pro Flo Fuel Injection systems. Edelbrock released the original Pro Flo fuel injection system in the early 9. The original Pro Flo system allowed computer management of every aspect of the engines operation to the millisecond, and that control increased the power of the sluggish and stifled pollution controlled engines of that time. The Pro Flo system revolutionized bolt on electronic fuel injection systems as a complete package including everything needed to convert older carbureted motors into an EFI engine. Unique to this early system was a handheld controller that allowed the user to adjust the fuel injection parameters without a laptop computer. The first generation Pro Flo EFI kit is no longer available from Edelbrock and for anyone that owns the Pro Flo and wants to upgrade to the Pro Flo 2, an upgrade kit is available. The Pro Flo 2. Edelbrock expanded and modified the Pro Flo EFI system and released the Pro Flo 2 as a direct replacement for the original Pro Flo system. All the features from the original Pro Flo system were retained or improved, including a new module that was resistant to EMI electrical noise from high energy ignition systems. RS/SR/Alternative/38/32571371~1_L_1c5be0ce.jpg' alt='Edelbrock Pro Flo Tuning Software' title='Edelbrock Pro Flo Tuning Software' />The Pro Flo 2 also allowed laptop tuning using supplied software that allowed calibrations to be saved and loaded. One of the more significant improvements to the Pro Flo 2 system was the ability of the module to read both wideband and narrowband oxygen sensors. The Pro Flo 2 can also be configured to use any available manifold pressure sensor, making it perfect for supercharged or turbo charged applications. Fastest Speed Accelerator Windows 7 on this page. The Pro Flo XTThe Pro Flo XT system is a complete and separate EFI system in the Pro Flo line. Joining forces with EFI Technology, Edelbrock has designed the Pro Flo XT EFI system for higher end applications. EFI Technology is instrumental in designing EFI and data control systems for IRL, F1 and NASCAR series racecars. Utilizing their technology and experience, the Pro Flo XT has the performance characteristics of a cutting edge performance system with a very user friendly interface. Edelbrock Pro Flo Tuning Software' title='Edelbrock Pro Flo Tuning Software' />The Pro Flo XT is a complete package that includes an assembled intake, fuel rails, throttle body, ECU, wiring harness, fuel pump, fuel hose, fuel filter and all sensors and hardware. Final installation requires the use of a PC for first time base calibration. The software program is extremely user friendly and is menu driven. No special computer knowledge is needed to upload or save calibration settings simply follow the instructions onscreen. While the system may be used by custom tuning facilities, there is no requirement to have special tuning skills or advance tuner experience. The system can be loaded and programmed by virtually anyone with basic mechanical knowledge. Highlights of the Pro Flo XT EFI System. The systems intake manifold design is all new with a front mount style throttle body location patterned after late model GM manifolds. Shooting for a custom designed look, the manifold is available in cast aluminum or black powder coat finish. Included is an LSX style 9. Idle Air Control stepper motor. The full sequential injection system allows for individual injector firing of the 2. The ECU is flash programmable, includes several base calibrations, and can be tuned with the handheld controller. In addition to the handheld controller, the ECU can be tuned with a laptop through the included PC software interface and has unlimited calibration storage. Options with the flash controller are MAP N tuning strategy and Alpha N tuning strategy. MAP N, or speed density tuning uses the engine speed in relationship to the MAP manifold absolute pressure to determine the fuel demand and spark requirements throughout the speed range. Speed density tuning can bring out the maximum performance from an engine, especially a highly modified engine. Alpha N tuning uses the engine speed against the throttle position to determine the fuel and spark requirements. This tuning approach can be very desirable when an engine is upgraded with a big, gnarly cam that can cause low speed or idle problems. Tuning Strategy Comparison. MAP NAdvantages. Relatively quick and easy to tune. Base fuel map is graduated in units of injector pulsewidth. Very common tuning method used in many popular aftermarket EFI systems. Works well and easy to tune for boosted applications. Easy to modify calibration if larger injectors are installed. Disadvantages. Does not work well with large overlap camshafts due to low idle vacuum signal. Requires temperature based trim tables. Indirect measurement of load. Calibration can be inconsistent if trim tables are not properly tuned. Alpha NAdvantages. Works well for large overlap camshafts not affected by low idle vacuum signal. Relatively quick and easy to tune. Base fuel map calibrated in units of injector pulsewidth. Easy to modify calibration if larger injectors are installed. Disadvantages. Idle mixture affected by closed throttle TPS voltage drift. Requires temperature based trim tables. Indirect measurement of load. Does not work well with idle air control motors. Calibration can be inconsistent if trim tables are not properly tuned. Like the Pro Flo. Pro Flo XT accepts either a narrowband or wideband oxygen sensor. The difference between a narrowband and wideband sensor is the range over which the sensor is accurate. A narrowband is basically a switch that only tells the ECU if the air fuel ratio AFR is richer or leaner than 1. A wideband sensor typically has a linear voltage output that is accurate over a range of 1. AFR. According to the EFI engineers at Edelbrock, to get the most out of any fuel injection system installation, a proper wideband oxygen sensor installation is hard to beat. At typical cruising conditions, it is difficult to tell by the seat of your pants the difference between an engine running at an AFR of 1. A wideband will tell you instantly exactly what the AFR is under all conditions. Pro Flo XT Additional Specs 46 fuel table 36 spark table Handheld Calibration Module1. RPM tables if using PC software. Closed loop fuel control. Adjustable rev limiter. Two piece EFI harness connects the engine harness and chassis harness at the firewall for quick connection and easy removal. Unlike the earlier generations of fuel injection systems, the current technology in Edelbrocks electronic fuel injection EFI embodies the best of the tried and true carburetion systems the reliability, ease of use, simplicity, and the stand alone design. In addition to becoming even more user friendly, these electronic fuel injection systems meet federal environmental air emission standards while improving engine performance and fuel economy.