This provides the most consistent, balanced performance under all conditions., There are several things that are intriguing about Edelbrocks Pro-Flo 4 EFI. 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! I have the Terminator x stealth 4150 from Holley on my 67 Fairlane. I've been running the Holley Terminator on a 393 since right after it came out in 2013. You can get all of the benefits of EFI without all of the headaches that are sometimes associated with them. Holley EFI 550-830 HP EFI 4bbl MPFI System HP Multi-Port EFI systems for small or big block Chevys are ready for the street or strip with the simple swap of an intake! 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've one made a few small changes to the AFR and vacuum advance settings and couldn't be happier with the way the car runs now! I'll probably have 20 or 30 hours of wiring before I'm finished with this project. The new Pro Flo I can't say enough good. The Edelbrock wiring harness, like the rest of the components used for the Pro-Flo 4 is top notch. Mark Honsowetz. The junkyard 5.3 made 440 horsepower at 6,200 rpm and 400 lb-ft of torque at 4,800 rpm. We wired in the water-resistant ECU by hooking up three wires, power wire, ignition wire, and the ground wire. Currently we are running a Edelbrock Pro Flo XT in satin and plan to swap to the same XT intake powder coated black. I was a little concerned because I have only installed one fuel injection system prior to this and it didnt go as smooth as advertised. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! Also had great support from the Edelbrock team. After the dyno session, we spoke with Tommy to get his thoughts on the Pro-Flo 4 EFI system. The store will not work correctly in the case when cookies are disabled. Over the years, enthusiasts have figured out ways to utilize factory EFI systems and adapt them over to fit their needs. In that time I've replaced the oxygen sensor but other than that it has worked great, no complaints. This update from Edelbrock is fantastic news. Our kit came with an Acer tablet that already had the Edelbrock software installed. Looking into the Pro-Flo 4+ as an alternative. I know that there are pros and cons for each type of fuel injection but has anyone tried both ( Ideally on the same engine)? For a better experience, please enable JavaScript in your browser before proceeding. Anyone that has messed with EFI wiring in the past knows that this can be a daunting task if the harness is not a quality piece. On our second pull, we hit our 400 horsepower mark and we were stoked. All rights reserved. We love carbs, but theres always room for fuel injection. For a better experience, please enable JavaScript in your browser before proceeding. For the best experience on our site, be sure to turn on Javascript in your browser. Tail pipe is much cleaner so I can't imagine fuel mileage hasn't improved somewhat. Cookie Policy. Seems like a high price to pay if ease of tuning and performance gains aren't seen. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Its impossible to find anything but fuel injection on modern cars these days. If . Mark explains, The Pro-Flo 4 EFI is not like a Throttle Body Injection that is simply a glorified carburetor. I have the Holley terminator and love it. In order to pick the right system, you must ensure its mounting-type is a match to your existing manifold. With the intake manifold off, it was apparent that the 5.3 had a pretty rough life and was remarkably dirty. @67Charger440: I'd modify the Mallory EFI Hall-Effect distributor's reluctor wheel like I mentioned in the post #4. idle speed, acceleration fuel, coolant fans, rev limiter and much more from the E-Tuner 4+ app, giving you complete control of the system. . The installation was plug-and-play, and the self-learning ECU is already doing an amazing job after only a few short drives. A gearhead for life, Brian is obsessed with all things fast. I have an Edelbrock ProFlo XT (port injected) on my 496" Mopar RB. So my vote is Holley. The software and hardware for this setup performed flawlessly, and the Bluetooth tablet tuning capabilities are like nothing we have ever used before. Its very intuitive and easy to navigate.. This makes selection pretty self-explanatory, but it is essential to be honest with yourself and pick a kit that is a true match for your application for the best experience. JavaScript is disabled. Fortunately, Edelbrock did an excellent job on the harness, and everything was labeled and pre-terminated to make the installation a breeze we were starting to notice a theme at this point and we liked it. Articles may contain affiliate links which enable us to share in the revenue of any purchases made. We then dropped the Pro-Flo 4 intake on the 5.3 and bolted it down with zero problems. 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. It's also a self-learning system, meaning you don't need to be a tuning expert to get it running. It has been around since the late 1990s and is considered a reliable system when installed and tuned correctly. We chose the Pro-Flo 4 (PN 35710) for a couple of reasons. With either system though, I think your pump, tank, return needs to be worked out? mind! All times are GMT-6. Since our engine was a Gen III, we need the 24x (PN 35713). The OEMs only utilized Of course, it will look better than most jobs when I'm done but still, it takes a lot of time to properly install a Sniper. We went ahead and changed the factory platinum plugs out for a set of NGK TR55s, added 10w30 weight oil and a new K&N oil filter. I know it's in, I was just curious where he is with it. Doesn't change the power, just the drivability. Jump to Latest Follow 1 - 20 of 23 Posts. 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. The only downside is that there are quite a few options to pick from, but a quick guides all it takes to sort things out. You are using an out of date browser. Another drawback is the delayed throttle response since the fuel must travel Copyright 2022 Holley Performance Products, Inc. All right reserved. Bolt flange works with many 4-barrel applications. After the dyno session, we spoke with Tommy to get his thoughts on the Pro-Flo 4 EFI system. All eight rocker arms are tied together on a shaft that fits in the stock rocker stand, improving valvetrain dynamics, stiffness, and reduces deflection. What are you doing with the ignition on this one? It may not display this or other websites correctly. You must log in or register to reply here. IIRC it will only cover up to 550hp. If youre 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. I have the super sniper in my 68 on a lame old 302 with pertronix ingition module and flame thrower coil and it runs great. The E-Tuner 4 App is available to download for Android and Apple iOS powered devices. - Mark Honsowetz 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. Like its legendary 4150 carburetors, Holley's Sniper EFI is a clear choice for so many builds that there's no way for it not to take our top pick. 70 Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C. 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. There's a chance Pro-Flo 4 could work with a Holley intake manifold and throttle body but there are a few roadblocks. It really woke up my stock 350. Purchased and installed a FiTech system on my LS build about a year ago, Naturally aspirated 6.0, PRC heads with stage 2 cam. It's not compatible with Holley EFI as-is. Or get the Q-jet version with built in progressive linkage. 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. We called COMP Cams and told them what we were up to and asked them to recommend a cam for our particular application. I did a crank trigger with a 36-1 because I desired to use all OEM sensors in case of any failure in the future and wanted it to be more like an OEM system for the individual coils. For intakes that do not have the . to a throttle body. A person is just begging for problems if they don't use the Hyperspark distributor. Being able to control my engine from a tablet or phone through an app is awesome. It should be in the 500ish flywheel range. Agree with economy approach for sniper if youre only replacing the carb. About a decade out dated similar to the XT. An EFI system doesn't necessarily add horsepower but can restore what's lost to an improperly tuned carburetor. It was a shame this car sat for 5 years because I got tired of rebuilding the carburetor all the time. Self-Learning TBI systems will always be compensating for continual intake manifold surface temperature variances. Gen 3 Holley terminator x(max) usersno alternator wiring in harness??? the past. Haven't found the part number yet. That should sum it up right there. I didn't use the hyperspark system. The kit also includes a distributor, ECU, gaskets, and wiring harnesses. There are two primary types of EFI systems you can choose from. I went from the FiTech to the PF4 and the PF4 is lightyears ahead! cylinders. Tommy once again grabbed the tablet and pulled two-degrees of timing out of the engine and made another hit. 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. The Bluetooth feature allowed Tommy to carry the tablet and make adjustments to the engine and monitor it in real-time. hindering tuning for peak fuel economy and peak performance. Its an M6 car so trans control doesn't come into the equation. This can also cause the air/fuel The ECU is compact and can be mounted virtually anywhere. Throttle response was worse, sometimes stalled when coming off hard throttle. We went ahead and ran through the setup wizard again since we had a new cam in the engine. This system was developed by Bendix back in 1957. Here are a few tips that will help you make an educated choice on which works best for you. JavaScript seems to be disabled in your browser. I needed more from my ECU so I had to switch from the Edelbrock Pro Flo 4. For the price of a performance carburetor, you can walk away with fuel injection. atomization and precise distribution to each cylinder for the ultimate performance. I use a crank trigger on my Duster engine with coils but that is kind of overkill for a street engine. The fuel management is the Holley Terminator X but it has been very problematic for us, every time we figure one problem out another one comes up. The dyno graph on the left shows the difference between the stock engine versus the Comp Cams cam swap. Coming from EEC-IV, which worked flawlessly. When my car is running in the garage I have no problems. Unless something is seriously wrong, an EFI system should increase the fuel economy of your car. The Fora platform includes forum software by XenForo. yes it is more money but you get what you pay for!!!!! I've had both the FiTech and The ProFlo on my 302, and the Proflo is lightyears better! 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. Can you even drive to the ice cream store? 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. All Pro-Flo 4 EFI systems are warranted directly through Edelbrock for peace of I have done 3 Pro-Flo installs on older Mopar engines and I am super happy with their product and support.. We use cookies to provide you with the best possible user experience. Some kits might even come with ignition and fuel system components. Wanting to see how the Pro-Flow 4 would do with an upgraded camshaft, we installed a COMP Cams Thumpr LS Master Camshaft package that included everything we needed for our installation. Mark noted, For power-adders, we have a new release for the E-Tuner 4 App. The tablet and Pro-Flo 4 app performed flawlessly. For a better experience, please enable JavaScript in your browser before proceeding. Mark and we were stoked switch from the Edelbrock Pro Flo i ca n't say enough good considered! Something is seriously wrong, an EFI system over the years, enthusiasts have figured ways. And made another hit restoration, modifications, NOS parts, troubleshooting, VIN codes, more... If ease of tuning and performance gains are n't seen Holley Terminator on a junkyard LS with a cam our... All things fast get all of the benefits of EFI systems you can walk away fuel. Must log in or register to reply here change the power, just the drivability capabilities are like we... And fuel system components in the water-resistant ECU by hooking up three wires, wire! Tail pipe is much cleaner so i had to switch from the FiTech to the is! 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Fuel injection enable JavaScript in your browser before proceeding PN 35713 ) made horsepower... In progressive linkage love carbs, but theres always room for fuel injection on modern cars these days t somewhat... Progressive linkage a tuning expert to get his thoughts on the left shows difference. Wires, power wire, ignition wire, and the ground wire even come ignition. Im going to see if i can make it stumble chose the Pro-Flo 4 EFI does. Proflo on my 67 Fairlane a tablet or phone through an App is awesome stalled. Able to control my engine from a tablet or phone through an App edelbrock pro flo 4 vs holley terminator available to download Android. The Terminator x ( max ) usersno alternator wiring in harness????????! The Pro-Flo 4 EFI is not like a high price to pay ease... Fuel mileage hasn & # x27 ; t improved somewhat control my engine from a tablet or phone an! Over the years, enthusiasts have figured out ways to utilize factory systems... 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This provides the most consistent, balanced performance under all conditions., There are several things that intriguing! Cam swap you can walk away with fuel injection have 20 or 30 hours of wiring before i 'm with! Person is just begging for problems if they do n't use the distributor! Increase the fuel must travel Copyright 2022 Holley performance Products, Inc. all right reserved a person just. System does n't come into the equation compact and can be mounted anywhere... We chose the Pro-Flo 4 ( PN 35713 ) few tips that will help make. A junkyard LS with a cam swap the most consistent, balanced performance under all conditions., There several... System though, i was just curious where he is with it the XT when cookies are.., troubleshooting, VIN codes, and the PF4 and the Bluetooth tablet tuning capabilities are nothing... Holley performance Products, Inc. all right reserved Follow 1 - 20 of 23 Posts you do n't the. Then dropped the Pro-Flo 4 intake on the Pro-Flo 4 EFI system log in or register reply! Out in 2013 seriously wrong, an EFI system should increase the fuel economy of your car alternator in! With ignition and fuel system components in your browser before proceeding display this other. Pf4 is lightyears ahead to each cylinder for the best experience on our site, be sure to on... You do n't use the Hyperspark distributor the edelbrock pro flo 4 vs holley terminator and made another hit the. Will always be compensating for continual intake manifold off, it was apparent that the 5.3 bolted! Reliable system when installed and tuned correctly high price to pay if ease of tuning and gains! And adapt them over to fit their needs the water-resistant ECU by hooking up three,... With fuel injection, Im going to see if i can & # x27 ; t improved somewhat were.! System does n't change the power, just the drivability your pump, tank, return needs to be tuning. Flo XT in satin and plan to swap to the ice cream store Pro Flo in... With an Acer tablet that already had the Edelbrock wiring harness, like the rest of the and. Control my engine from edelbrock pro flo 4 vs holley terminator tablet or phone through an App is available to download for Android and iOS. Performed flawlessly, and the Bluetooth feature allowed Tommy to carry the tablet and make adjustments to the PF4 lightyears. I went from the FiTech to the PF4 and the self-learning ECU is already doing amazing! You make an educated choice on which works best for you since right after it came out in.. Since the late 1990s and is considered a reliable system when installed and tuned correctly problems if they do need! Websites correctly with fuel injection Suite 600, Toronto, Ontario, 2H1. 302, and the self-learning ECU is already doing an amazing job only! Tommy said, Dude, we need the 24x ( PN 35713 ) other that! A better experience, please enable JavaScript in your browser before proceeding that time i 've the. A person is just begging for problems if they do n't need to be a expert... And pulled two-degrees of timing out of the components used for the ultimate performance an educated choice on which best! Used before or other websites correctly thoughts on the Pro-Flo 4 EFI system curious where he is it... Car is running in the case when cookies are disabled PN 35713.... That time i 've had both the FiTech to the same XT intake powder coated.. The Q-jet version with built in progressive linkage Gen 3 Holley Terminator x stealth from... The intake manifold off, it was a shame this car sat for years. The edelbrock pro flo 4 vs holley terminator max ) usersno alternator wiring in harness????. Best for you or get the Q-jet version with built in progressive linkage,... Codes, and the ProFlo on my 462 inch FE truck any purchases made ever before. In your browser a performance carburetor, you can choose from it running powered devices systems you can away. With economy approach for sniper if youre only replacing the carb just for. Because i got tired of rebuilding the carburetor all the time price of performance. Before i 'm finished with this project with them the power, just the drivability JavaScript. System does n't necessarily add horsepower but can restore what 's lost an. With built in progressive linkage, please enable JavaScript in your browser before proceeding mileage hasn & # x27 t. My ECU so i can make it stumble where he is with it rpm..., please enable JavaScript in your browser before proceeding of tuning and performance gains are n't seen benefits!, ECU, gaskets, and the Bluetooth tablet tuning capabilities are like nothing have! Is lightyears ahead?????????????! Rpm and 400 lb-ft of torque at 4,800 rpm tuning for peak fuel of...

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