If you are planning on running the factory LS fuel injection, you can purchase the Pro-Flo 4 EFI – ECU & Engine Harness Kit for GEN III 24x LS Engines, for only $1,173.95. The single plane went on and supposedly ran flawlessly. We were not as trusting and asked if he was going to ease into it a few times to let adjust before we made any dyno pulls. This is by far one of the best and easiest EFI systems that we have had the experience of testing to date. ... Leaves some to be desired, but the biggest reason I went with Fitech Vs Holley was the ability to run two widebands. According to COMP Cams, this bolt-in bushed-shaft rocker system that increases valvetrain stiffness allowing your engine to obtain more performance. Convinced that we had to give this unit a try, we headed down to Wichita Falls Motorcars and picked up a well-used 2004 5.3-liter out of a Chevrolet Avalanche. Holley Sniper vs Stealth. The one sir tech that is the only one handling this model. The junkyard 5.3 made 440 horsepower at 6,200 rpm and 400 lb-ft of torque at 4,800 rpm. This system was developed by Bendix back in 1957. Carburetor Vs. Electronic Fuel Injection We called COMP Cams and told them what we were up to and asked them to recommend a cam for our particular application. The unburned fuel does not register at all with the O2 senor but the unused oxygen that bypasses the cylinders DOES get seen by the O2 sensor and makes it looks like the engine is burning lean, when it is actually not. By now, Tommy had gained some confidence in the Pro-Flo 4 unit. 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This update, which will be available in July, will support boosted applications. Although, in under two minutes, we arrived back at the same screen telling us to “prepare to start the engine.” Tommy glanced over, but this time, he didn’t pause and immediately hit the starter on the dyno. Depending on the year of the engine you will either need a 24x or a 58x reluctor wheel harness. There are several things that are intriguing about Edelbrock’s Pro-Flo 4 EFI. When we said the engine was dirty, we weren't joking. If you’re doing a conversion, either need to stick with a manual or mechanical-type transmission, or use a stand-alone transmission controller. We reached back out to Mark Honsowetz of Edelbrock to see what the company had to say about these additions for the Pro-Flo 4 EFI system. After the dyno session, we spoke with Tommy to get his thoughts on the Pro-Flo 4 EFI system. We went through the process again just to make certain we didn’t miss anything. Don't want to catch fire lol LMK anyone's thoughts with these earlier units? This process took less than two minutes and then told us to “prepare to start your engine.” Puzzled, I looked at Tommy and said, “prepare to start the engine?” Tommy glanced back in disbelief and said, “Are you sure?” At this point, we were not. After a little debate and going back and forth, we decided that anything over 400 horsepower would be a good gain. If you have an Android device, you can download the software from the Google store for free. Holley Sniper vs Edelbrock Pro Flo 4. I don't have dominator money :-( '69 SS396 - FiTech L33 swapped w/Muncie, 3.31 TrueTrac - VHX Gauges. He said, “This unit is ideal for carbureted guys that are hesitant about EFI and don’t want to tune on the engine with a computer and software. The Bluetooth feature offered seamless changes when tuning and the gauge display shows you the engine vitals with the touch of the screen. I’ve heard pros and cons of both but would love your input on your thoughts here first! I’m looking for options from the experienced Pro Flow owners. Edelbrock offers EFI kits available for most applications, including the popular Chevy LS. Holley’s HP ECU is standard equipment on the 2013-2016 Chevrolet COPO Camaro and Holley’s EFI throttle body powers every NASCAR Sprint Cup Series™ team. With the addition of boosted support and transmission control, the Pro-Flo 4 is only going to get better and even more dynamic. It is not clear to me why having port injection would make any difference in how the sensors operate or how well the fuel-air maps are set up, selected, or used. We will safeguard your e-mail and only send content you request. The big cam overlap will give erroneous O2 readings at low RPM's where a lot of unburned fuel-air mixture goes straight from intake to exhaust and completely bypasses the cylinder and the burn process. Edelbrock pro flow 4 any issues or advice? The Pro-Flo 4 ECU sends the engine data via Bluetooth, which allows us to monitor the engine vitals on the tablet even though there are no cables hooked up. The ECU is the old Gen VI system with a small cap HEI distributor and the transmission is using a TCI ECU. Granted, we haven’t tried all of the EFI units on the market, but we have played with our fair share. So the ECU makes the wrong mixture adjustments. You will need to order the Ignition/IAC Harness harness, but we we’ll into that later. The stock engine was locked and loaded for our first round of dyno pulls. The next step in the process was to set up the ECU. Tommy once again hit the ignition switch and the 5.3 roared to life. Tommy once again grabbed the tablet and pulled two-degrees of timing out of the engine and made another hit. Banging gears, turning wrenches, and praying while spraying are just a few of his favorite things. The junkyard LS still picked up some power but not near as much as the previous pull, which told us were about done with the timing table. Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a 1,000 cfm throttle body, fuel rails and individual injectors for each cylinder. With our junkyard test engine on the stand, we started removing everything we didn’t for the Edelbrock Pro-Flo 4 EFI system. Any issues or tips to share? With plans to swap the engine into a ’91 Suburban at a later date, we could run the carb-style throttle body with ease. The intake comes preassembled from Edelbrock, so we didn’t need to bolt on the throttle body, sensors, fuel rails, or even the crossover fuel line. It’s impossible to find anything but fuel injection on modern cars these days. © 2017 Power Automedia. The Edelbrock wiring harness, like the rest of the components used for the Pro-Flo 4 is top notch. All eight rocker arms are tied together on a shaft that fits in the stock rocker stand, improving valvetrain dynamics, stiffness, and reduces deflection. Does anyone have any experience with it. As good as the Pro-Flo 4 is — and it’s absolutely awesome — there are a couple of additions we would like to see in the future. Our kit came with an Acer tablet that already had the Edelbrock software installed. The Edelbrock EFI system does not currently allow you to run an electronically-controlled transmission like the 4l80E or 4l60E. Tommy Keeter, owner of KPE Racing ran the dyno and monitored all of the vitals. It’s very intuitive and easy to navigate.”. We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. First post, sorry if it's in the wrong place. Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a 1,000 cfm throttle body, fuel rails and individual injectors for each cylinder. Shops are making more money because expensive and time-consuming dyno sessions and tuning are not necessary with the Pro-Flo 4 EFI and E-Tuner 4 app.”, Most customers are surprised with the simplicity of the E-Tuner 4 app. Over the years, enthusiasts have figured out ways to utilize factory EFI systems and adapt them over to fit their needs. Top racers are making the switch to Holley … The Pro-Flo 4 EFI system included almost everything we needed to do the swap our engine and get it on the dyno. Tommy made some idle adjustments on the throttle body to get the Idle Air Control (IAC) sensor parameters in check, and we were ready to make some noise. It offers a high-revving 376-inch combination that represents generations of small block V8 development and engineering. Mopar/Chrysler | Product categories | Affordable Fuel Injection, MOPAR / CHRYSLER Complete TBI System | Affordable Fuel Injection, (You must log in or sign up to reply here.). One additional item that you will need to order with the kit is the Ignition/IAC harness. The multi-port design is so superior that, in 2017, Edelbrock discontinued production of their E-Street TBI kits in order to fully concentrate on the continued development of its Pro-Flo multi-port EFI product line. Since that time, fuel injection has gained popularity as it increases an engine’s efficiency as well as drivability. Many carbureted applications also require extensive efforts to calibrate jetting and other features to take full advantage of available performance for a specific use. We resisted the urge to clean the engine off and just wiped down the cylinder heads to ensure we had a good seal between them and intake manifold. This adjustment the engine wanted, and it revved up effortlessly. Mark states, “Most customers are surprised with the simplicity of the E-Tuner 4 app. Superchargers and turbos are all the rage these days, and we were surprised that the Pro-Flo 4 was not able to accommodate for a boosted environment. The rockers on the high-mileage engine had seen better days, so we upgraded to the COMP Cams Max-Lift BSR Shaft Rocker Systems. The Pro-Flo 4 is easy to install, and tuning it could not be any more simple. Leaning toward Pro Flo 4. After it got up to temperature, we were allowed to make some more changes to the tune as the ECU was now unlocked. Up to this point, everything was just as Edelbrock said it should be: simple. Pro-Flo 4 EFI functions much like modern fuel injected cars today utilizing eight injectors, one at each cylinder that injects fuel on time with the intake valve opening. Yeh, I'm sorta wondering there too.. For more information on this product and others, be sure to check out Edelbrock.com. While this method works, it’s costly. If you’re looking for an easy-to-use EFI system to convert your carbureted hot rod over to the modern era, the Edelbrock Pro-Flo 4 EFI system from Edelbrock is going to be tough to beat. The Bluetooth feature allowed Tommy to carry the tablet and make adjustments to the engine and monitor it in real-time. – Mark Honsowetz, Multi-Port Injection Vs. Throttle Body Injection Trying to decide what would work best with my current application either the Dominator or Terminator X system. Tommy looked at the dyno numbers and said, “Dude, we just made 440 horsepower on a junkyard LS with a cam swap.” He was right! Mark explains, “The Pro-Flo 4 EFI is not like a Throttle Body Injection that is simply a glorified carburetor. As of 2016 Holley EFI is also used to control every NHRA Pro Stock car that goes down the strip! Welcome to our site! I wouldn’t hesitate to drive it across the country, and we plan on beating up as many roads and trails with the updated vehicle as possible. 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