Standalone EFI Systems Hot Rod Network. Lets just get this out of the way up front. For the average street machine, EFI isnt about making more horsepower. Ram Jet 350. 5450. You may recall the Ram Jet brand from the GM mechanical fuel injection systems of the 1950s. Back then everyone wanted a fuelie and. B001HQLU78.jpg' alt='Accel Calmap Software' title='Accel Calmap Software' />Its not about simplicity or saving money either. The good ol carburetor has had that covered for more than a century. Even those of us whove picked our knuckles up off the ground would agree. Warhammer Rulebook Pdf Torrent'>Warhammer Rulebook Pdf Torrent. To top it all off, the ugliness of errant wires and sensors requires innovative solutions on the OE levellike slapping on engine covers. So why go EFI Despite its higher initial cost of entry and reputation for fussiness, once EFI is set up properly, no Dominator or Q jet can come close to the driveability, reliability, lack of maintenance, and consistent performance EFI delivers. EFI also offers reduced emissions and improved gas mileage for those of you who care about that sort of thing. Whether youre looking to trade in your carb for a computer, want to step up from a factory PCM to a standalone, or just train your stock computer to play nice with big cams and blowers, the options are many, and getting started isnt as hard as you may think. Since consumer intimidation is inversely proportional to profits, the aftermarket has taken great measures to make the transition from carb to EFI as painless and simple as possible. Heres a look at some of the more popular EFI systems on the market plus some tips on how to get started. Follow along as we build a 1,000hp twinturbocharged 383ci smallblock Chevy engine to install in a latemodel Chevy Impala SS Super Chevy Magazine. Purple/v4/bd/7a/92/bd7a929b-3d7b-7c42-5379-570d47317430/mzl.vuagbyxi.png' alt='Accel Calmap Software' title='Accel Calmap Software' />STANDALONE EFI SYSTEMSDespite the amazing potential for tuning factory computers afforded by relatively inexpensive software, these programs still have their limits. The inability to use low impedance injectors caps power, and only an aftermarket computer offers real time tuning capability while the motor is running. The biggest disadvantage is the most obvioustuning software for factory computers is not available for all engine types. If thats the case, the only option is going to a standalone aftermarket EFI system. Kits usually include a PCM box computer, a wiring harness, sensors, tuning software, and a cable that interfaces with a laptop computer. The end user typically supplies the remaining fuel system components, and less popular applications may require custom hardwiring of a generic wiring harness. These systems can also be used to convert carbureted induction to EFI as long as you dont mind the onus of piecing parts together and doing some minor fabrication work. Edelbrock. From vapid 3. Edelbrock can manage them all with its multiple EFI system offerings. One of the most user friendly of all carb to EFI upgrades, Edelbrocks semi sequential fire Pro Flo EFI system is available for small block Fords, AMCs, Jeeps, and small and big block Chevys and Mopars. The system bundles together an intake manifold, fuel rails, injectors, fuel pressure regulator, a high pressure fuel pump, a carb style throttle body, a wiring harness, an ECU, and all necessary sensors. To help even the most clueless users get started, Edelbrock supplies a plug in chip for your ECU custom calibrated to engine specs you provide your friendly Edelbrock tech support rep after the time of purchase. Once a baseline program is established, fuel and timing maps and idle speed are fully adjustable with a handheld calibration module. Prices start at about 2,0. Edelbrocks new Pro Tuner EFI system, designed in conjunction with Moto. Tron, boasts serious hardware for extreme competition motors producing up to 1,5. Kits are based on either a Victor or Super Victor single plane manifold converted for EFI use and include fuel rails and injectors. The heart of the system is a Moto. Tron ECU and Windows based tuning software, complemented by all necessary wiring, sensors, and a distributor. A four barrel throttle body, a fuel pressure regulator, and a high flow external fuel pump complete the package. Pricing is yet to be announced, but look for small block Ford, Pontiac, and small and big block Chevy systems to hit the shelves later this year. Holley. For the more audacious, Holleys batch fire Commander 9. The kit boasts the potential to support 9. ECU, and sensors. The Windows based software includes a plethora of baseline programs for a vast range of applications. Waverly After School Program'>Waverly After School Program. Uploading a program for a combo similar to yours gets you up and running, and more files are regularly added to Holleys Web site and are available for downloading. Hard core streetstrip warriors will appreciate the optional race software upgrade that features data logging up to 2. O2 sensor upgrade. Systems are available for small and big block Chevys and small block Fords. Prices start at 2,3. Accel DFIWhen ACCEL replaced its venerable Gen VI DFI system with the new Gen VII, critics balked that its software was too cumbersome to navigate. Interfata Limba Romana Pentru Windows Xp there. In response, ACCELs Cal. Map software has been refined, and certain tuners swear by the Gen VII as the high end system of choice. After you enter bore and stroke dimensions, compression ratio, cam specs, fuel pressure, injector size, and cylinder head specs, Cal. Map automatically generates a custom baseline program to get you up and running. Tweaking the fuel maps is simply a matter of entering a target airfuel ratio. The PCM takes that figure and adjusts injector pulse width accordingly. Additional features include the choice of batch or sequential fire injection, nitrous control, torque converter lockup functions, a two step rev limiter for turbo cars, and separate fuel and spark maps for starting line launches. The bottom line is that it may take some practice to master, but the Gen VII is a very powerful piece of equipment. Prices start at 1,4. FASTThough we dont have the capacity to conduct an official survey, FASTs EFI system is probably the most popular on the market, and with the introduction of the companys newest system, its sure to continue to be. Previously, you had to choose between one of two systems a bank to bank PCM that fires four injectors at a time every 1. The new system, called XFI, allows either setup in the same box. In fact, unlike previous versions, the new FAST box comes only one way, eliminating the pesky additional and extra cost options. In a nutshell, the FAST PCM can control every aspect of the engine, from fuel to spark to fans and other accessories, and it even has controls for an electronically controlled transmission. Thanks to the added accuracy the wideband O2 sensor affords, the system can run in closed loop under WOT. That means the PCM still reads the input from various sensors to adjust the ignition and fuel even when under full steam instead of relying on preprogrammed maps. The results are greater adaptability to changing atmospheric conditions and more leeway for the end user in dialing in the tune. Prices start at 1,0. Electromotive. Whereas most aftermarket EFI systems use time based calculations to determine spark and ignition phasing, the Electromotive TEC3 measures crank position with a trigger wheel for purportedly greater accuracy. The patented Direct Fire ignition system features a separate coil pack for every pair of companion cylinders, which according to Electromotive, provides more energy and 1. How much all thats worth on your average streetstrip motor is difficult to quantify, but many demanding small displacement forced induction applications prove its not all just a marketing myth. Tuners can also control turbo boost, nitrous, torque converter lockup, shift lights, cooling fans, and a three step rev limiter.
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