Banging gears, turning wrenches, and praying while spraying are just a few of his favorite things. Each Sniper setup will support different power ranges, but this is capable of feeding engines turning out up to 650 horsepower. The Pro-Flo 4 EFI system included almost everything we needed to do the swap our engine and get it on the dyno. Yep, I know that Mallory EFI Hall-Effect distributor well. After we installed all of the goodies from COMP in the 5.3-liter, it was time to do something with the factory rockers. This type works by placing the fuel injectors in the throttle body, creating a situation where a controlled mixture of fuel and air is pulled through the manifold. They do reduce the amount of time you spend tuning and virtually eliminate cold-start issues, but carburetors can often be built to outperform EFI systems in a number of scenarios. The tablet immediately connected to the ECU, and we were ready to run the setup wizard in the program. Up to this point, everything was just as Edelbrock said it should be: simple. We use cookies to provide you with the best possible user experience. Terminator X and X Max Stealth 4150 - Holley. Thank you for the feedback. i took a year looking at all the bolt on f.i systems and saw a lot of problems with fitech . The fuel rails and individual injectors provide such smooth drivability and effortless, instantaneous cold startup. It's fast, simple and absolutely free. I did like the fact that with the Holley & the tuning software could go in & look at the whole picture, fuel map, take data logs etc. MarkHonsowetz, Multi-Port Injection Vs. Throttle Body Injection I'd suggest it over a sniper in the Holley brand even though it's a few hundred more dollars. ? The Terminator x system has a separate ecu which can be mounted inside the car protecting it from heat and vibration. The E-Tuner 4 App is available to download for Android and Apple iOS powered devices. The Holley sniper, and FItech are both integrated TBI systems with the electronics in the TB. Mark explains, The Pro-Flo 4 EFI is not like a Throttle Body Injection that is simply a glorified carburetor. On behalf of every manufacturer, delivery drivers, supply chain representatives, and workers of the world, "We're Sorry.". It may not display this or other websites correctly. This update from Edelbrock is fantastic news. It really woke up my stock 350. This type of control will result in a smoother idle, faster acceleration, better peak power, improved fuel economy and the ability to control detonation, all with the touch of your finger in the E-Tuner 4 app. JavaScript is disabled. Tommy Keeter. The Driveand its partners may earn a commission if you purchase a product through one of our links. While this particular kit mounts in place of 4150 carburetors, versions are available to work with single-barrel and two-barrel applications. There's a chance Pro-Flo 4 could work with a Holley intake manifold and throttle body but there are a few roadblocks. All times are GMT-6. A gearhead for life, Brian is obsessed with all things fast. The ECU is compact and can be mounted virtually anywhere. The Pro Flo 4 performed flawlessly no matter what we through its way. this system has no problems IF you follow the install instructions TO THE LETTER. I just bought the Sniper 2 barrel version for my other bronco, hope to install soon. Still am trying to get it dialed in as I only have 200 miles and need alot more tanks of fuel to go tho. The next step in the process was to set up the ECU. that is why i bought this system. Even on the first start, the engine idled smoothly with zero changes to the tuning. Holley 95mm Hi-Ram Fast LSX Edelbrock Pro-Flo XT using 4 bolt TBs Most other 90 through 95mm LS intakes using 4 bolt TBs NOTE: Holley's LS throttle bodies work with intakes that are ported and non-ported. improve the performance, drivability and quality of your vehicle! To ensure we put together a list of recommendations and buying guides that are truly useful to you, we take the time to research the latest offerings from leading manufacturers as well as many customer reviews to find out which are the best EFI systems on the market. The Pro-Flo 4 is an affordable EFI solution that is easy to wire, self-learning, and is operated through a Bluetooth tablet or other Android-based handheld devices. The engine was still making power when it hit the rev-limiter. Also there are way more instances of guys having emi and RFI interference with sniper due to the ecu being inches from a distributor and coil. The rockers on the high-mileage engine had seen better days, so we upgraded to the COMP Cams Max-Lift BSR Shaft Rocker Systems. How about people using the Terminator? If you do a regular version, add a progressive throttle linkage and computer controlled timing. Thoughts? Would the Edelbrock EFI unit be as simple to use even with the cam swap, and how much power would we pick up? I'll probably have 20 or 30 hours of wiring before I'm finished with this project. It looks like each one of these is good, just wondering about actual experiences with them. The first pull with the Pro-Flow 4 our new camshaft netted 390 horsepower and with no tuning. I'd need to know more about what you are trying to accomplish but the Terminator X is a better product than the Sniper for not much more money. I wont settle for anything but the best, and thats the Edelbrock Pro-Flo 4 system. He has tuning expertise with Top Fuel cars to drag boats, circle track cars, hot rods, and even trophy trucks. 2022Recurrent Ventures. Cookie Policy. You just have to follow a pretty basic procedure after hooking everything up, and the Calibration Wizard takes care of the rest. He has problemsI do not. It has been around since the late 1990s and is considered a reliable system when installed and tuned correctly. Amazon.com: Edelbrock 4268 Air Cleaner Elite II 14in . I run an Edelbrock Pro-flo on my 462 inch FE truck. https://forums.edelbrock.com/filedat?photoid=42773, If this is your first visit, be sure to I doubt it. Next up, it was time to hook up the wiring harness. Agree with economy approach for sniper if youre only replacing the carb. Now it fires right up no matter what the weather is like or how long it has sat. I had great performance with the PF1 but this new system was so much better. By now, Tommy had gained some confidence in the Pro-Flo 4 unit. It is sequential multi-port and the ecu controls ignition timing too. Edelbrock allows remote installation of the ecm. For a better experience, please enable JavaScript in your browser before proceeding. That's why we included a list of alternative options below. The Fora platform includes forum software by XenForo. It's still in the mail on the way back. Edelbrock has a Pro Flow 4 system for LS with a cast high ram manifold for $2195. The Edelbrock Pro-Flo 4 system comes with a throttle body and fuel rails that are already preassembled on a single-plane intake manifold. Injectors are DEKA 60's-way oversized we know. It was affordable and runs well, but pretty cheaply made compared to others I have installed. To do a conversion a Dual Sync is recommended. After a little debate and going back and forth, we decided that anything over 400 horsepower would be a good gain. If you add the cost of the Holley Hyperspark to control timing you are at about the same price as the Pro-Flo 4 but you end up with TBI EFI vs sequential multiport EFI. As one of the original proponents of EFI in high-horsepower applications, Ive been eager to replace the carburetor on my 69 Camaro. Dont mind me, just posting a video for an article. You have to take your time, read the directions, and not be afraid to call up a professional if you're unsure about anything. By continuing to use our site, you agree to their use. Pro-Flo 4 EFI has the potential for improved fuel economy when upgrading from a We have used several EFI systems over the years, and we havent found many that are truly effortless. 08-03-2020, 08:54 AM. Benefits of the edelbrock is that it comes with the intank manifold, distributors and its multi point injections along with the fuel rails and injectors. What are you running? Typically, the center cylinders run slightly richer than the outer cylinders, Posted by Brian Havins on Tuesday, July 30, 2019. ", I have a 1971 Z28 Camaro with a Chevy LQ4 thats been stroked to 408 CI. Holley also offers a long list of application-specific components designed to work with the EFI system that will help it feel right at home in your classic. It Only Gets Better After the dyno session, we spoke with Tommy to get his thoughts on the Pro-Flo 4 EFI system. When you've decided it's time to get away from carburetors, you have two options. It may not display this or other websites correctly. 1,000 If you're working with a 4-barrel, be sure that the kit will work with your 4150 or spread bore application some work with both. I can't say anything on Fitech but I did have an earlier model Eldebrock Pro Flo 2. to a throttle body. Manufacturers offer kits to work with single, two, and 4-barrel setups. One better than the other? I needed more from my ECU so I had to switch from the Edelbrock Pro Flo 4. Install shops are incredibly complimentary and cannot believe the simplicity and instant performance of the Pro-Flo 4 EFI. Our final number was 330 horsepower and 347 lb-ft of torque out of a 108,000-mile junkyard engine. In my case with a Megasquirt and some fab work it was less expensive than a dual sync. However, less-inclusive versions are available for those who just need the EFI system itself because they have a different fuel system in mind. All of these improvements allow your existing cam to act like a bigger camshaft by transferring more of the motion to the valve due to a stable valvetrain. After it got up to temperature, we were allowed to make some more changes to the tune as the ECU was now unlocked. Mixing fuel this way allows for injection for improved drivability and efficiency. Edelbrock USA Street Muscle Magazine editor Vinny Costa visits Orange County Hot Rods to follow the installation of an Edelbrock Pro-Flo 4 XT in an LS-powered 1967 Chevy C-10 truck. Tommy Keeter, Owner of KPE, has years of experience with both mechanical injection, carburetors, and electronic fuel injection. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! last round was a dead ecm control in the unit and almost 400 bucks i think ? All Rights Reserved. Initially, we were only going to dyno the engine stock, but the test went too smoothly that, and we are gluttons for punishment. The Pro-Flo EFI 4 was perfect right out of the box. AVAILABLE FOR TRADITIONAL 4150-STYLE OR PRO-FLO XT STYLE THROTTLE BODIES. improved performance of a system like this is the fuel injector location, which is at The setup wizard is extremely simple and self-explanatory. Pro-Flo 4 is a Sequential Port Fuel Injection system. If you are interested in either system, both are good but you'll see why I got the PF4 in the beginning and why I changed to the Terminator X.Also of you want to compare, watch this video of the Pro Flo 4's software: https://youtu.be/TlwW8uh3kRI LIKE - SUBSCRIBE - COMMENT - SHARE!Also connect on instagram, facebook, and tik tok @2WhiteHorse8 I'll say it has been a great system for a street only car, but is WOEFULLY lacking for the strip. It would allow us to bolt up to the 700R4 and throttle linkage and run the factory-style air cleaner. But has it gone to the ice cream shop? 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. npt adapters and 2 90 degree vapor guard fittings. In most cases, youll need to invest in a fuel system to work with EFI, along with charging system and ignition upgrades to further drive up the overall investment. Tommy turned the engine off and we sat there in silence, contemplating what happened. I took the tablet and pushed a few buttons. I thought maybe it would be tough especially because I wasnt putting it on a street car but on a full tube chase rock crawler, to my amazement it really woke up my motor. This design is a simple yet excellent improvement over the factory design. - You are currently viewing the forums as a GUEST. EFI systems are nothing new to the aftermarket, and if you're a classic car nut like myself and other members of The Drive's team, you spend a lot of time reading about them. With the little LS still idling on the dyno, Tommy said, Im going to see if I can make it stumble. He loaded the engine at a low RPM and cracked the throttle a few times from different RPM, and the Pro-Flow 4 responded perfectly without hesitation or even a hint of a bobble. Dec 30, 2021 #2 Derwud Well-Known Member Local time 9:52 PM Joined Aug 18, 2014 Messages 1,447 Multiport injection systems typically come with replacement intake manifolds, so those buyers just need to ensure they pick the right fit for their engine. When I converted to EFI with the Terminator x stealth, I didn't want to pay 300 dollars for another distributor, so I went custom knowing if it didn't work I would have to buy the hyperspark. Tommy once again hit the ignition switch and the 5.3 roared to life. Different kits are available to shorten the shopping process as well. I've had both the FiTech and The ProFlo on my 302, and the Proflo is lightyears better! When my car is running in the garage I have no problems. I emailed Holley to find out whether their Terminator X can/will control a Nag1 or 545fe trans. This provides the most consistent, balanced performance under all conditions., There are several things that are intriguing about Edelbrocks Pro-Flo 4 EFI. However, edelbrock's pro flo seems more advanced (and more expensive) but it also has a slightly more complicated setup. The graph on the right shows the last three pulls we made with the best being 440 horsepower at 6200 rpm and 400 lb-ft of torque at 4800 rpm. I know it pretty much a sniper with comp tuning abilities. Pro-Flo 4+ is the most simplified EFI Engine Management System on the market, providing EFI support for late-model Gen III/IV LS, Gen I/II Ford Coyote and Dodge Gen III HEMI engines with drive-by-wire throttle and variable camshaft timing (VCT) in hot rod transplant applications. Is the Edelbrock system better-enough to justify the extra expense? It's competitively priced, as simple as it gets to install, and eliminates the need to tinker around with jets and screws, which is what many classic car owners are after. Mark Honsowetz. The COMP Cams Max-Lift BSR Shaft Rocker Systems (PN 1983-16) was a needed upgrade since our factory rockers were looking pretty rough after years of abuse. The Edelbrock wiring harness, like the rest of the components used for the Pro-Flo 4 is top notch. Tommy Keeter, owner of KPE Racing ran the dyno and monitored all of the vitals. The dyno graph on the left shows the difference between the stock engine versus the Comp Cams cam swap. ? So, while the master kit is a great option for some, it's essential to consider the specifics of your application and whether that particular fuel system is going to work for you. A dual sync should be fine for most engines. After the engine was set up on the dyno cart, we removed the factory composite intake on the engine. The installation was plug-and-play, and the self-learning ECU is already doing an amazing job after only a few short drives. While this method works, its costly. 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