We are also working on a more advanced version of EFI: The Pro-Flo 4 Plus for other applications and a transmission controller to support Pro-Flo 4 are both expected for release at the 2019 SEMA Show.. All Pro-Flo 4 EFI systems are warranted directly through Edelbrock for peace of Edelbrock has a Pro Flow 4 system for LS with a cast high ram manifold for $2195. Now it fires right up no matter what the weather is like or how long it has sat. 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. Will you notice anything? Read more. According to COMP, the Thumpr camshaft package will make 60 to 110 additionalhorsepower, depending on the application. We will safeguard your e-mail and only send content you request. Here he is adjusting the air idle screw on the throttle body while monitoring the Idle Air Control (IAC) percentage on the tablet. After looking at the options, I chose the Holley Terminator X. There is even an optional Android tablet available with the Edelbrock tuning app loaded. Plus they have great customer support and keep the old school look. Dec 30, 2021 #2 Derwud Well-Known Member Local time 9:52 PM Joined Aug 18, 2014 Messages 1,447 Ive had the Pro Flo 4 on around 3 months now & turned off the self learning after 2 weeks. Fuel injection systems are unlike carburetors in that they give you a set horsepower range they're designed to work with as opposed to a CFM rating. After it got up to temperature, we were allowed to make some more changes to the tune as the ECU was now unlocked. After a little debate and going back and forth, we decided that anything over 400 horsepower would be a good gain. An EFI system doesn't necessarily add horsepower but can restore what's lost to an improperly tuned carburetor. Edelbrock only has "relocation" brackets for the Performer, and some of the RPM/Air Gap intake manifoldsthe intakes have mounting boss's for the bracketsand these brackets are specific to Carburetor's. So. SEE WHAT OTHERS HAVE TO SAY. These features give you the ability to easily adjust your ignition curve specifically for your engine setup, eliminating the hassle, complexity and limitations of the standard distributor advance mechanism. 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. https://forums.holley.com/showthread3387#post43387, http://documents.holley.com/techlibr10555rev17.pdf, http://forums.holley.com/showthread.m-Sensor-Setup, http://forums.holley.com/showthread.ing-Holley-EFI, https://forums.holley.com/showthreadal-EFI-Upgrade, http://forums.holley.com/showthread.old-Conversion, http://forums.holley.com/showthread.nk-Trigger-Kit, http://forums.holley.com/showthread.-Throttle-Body, If this is your first visit, be sure to It's not required, but it is an option. I've used dual syncs on race engines even though the conventional wisdom is to switch to a crank trigger for racing. starts. This location provides a more efficient mixture control thats Looking into the Pro-Flo 4+ as an alternative. Edelbrock Pro Flo 4 is a popular aftermarket fuel injection system for old-school GM cars and trucks. Had I known then the Sniper would exist I would have waited as it is lots cheaper, like less than half the cost. JavaScript is disabled. improve the performance, drivability and quality of your vehicle! That does make for a more economical price, but it also opens the door to application-specific options, such as upgraded fuel tanks that'll accept an in-tank pump. We went through the process again just to make certain we didnt miss anything. It should be in the 500ish flywheel range. We chose the Pro-Flo 4 (PN 35710) for a couple of reasons. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Summit shows 3 weeks delivery. 70 Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C. It just plain works. All that was left was bolting on a set of headers, screw in the supplied O2 sensor, and connect it to the Edelbrock harness. Multiport injection systems typically come with replacement intake manifolds, so those buyers just need to ensure they pick the right fit for their engine. This isn't a feature of a sniper or a terminator though. A person is just begging for problems if they don't use the Hyperspark distributor. Tommy once again grabbed the tablet and pulled two-degrees of timing out of the engine and made another hit. 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. Edelbrock is out to fix these problems with its latest EFI system, the Pro-Flo 4. The 5.3 didnt like the change and lost power. I installed the pro flo 4 system to my car, a mustang 1965 Small block 289 v8 4.7. Instantly, the used 5.3 roared to life and idled smoothly. the past. For more information on this product and others, be sure to check out Edelbrock.com. How about people using the Terminator? Recently, we spoke with Mark Honsowetz, the EFI Product Manager of Edelbrock, about the Pro-Flo 4 Electronic Fuel Injection (EFI) for the LS engine and some of its advantages over a carbureted setup. The installation was plug-and-play, and the self-learning ECU is already doing an amazing job after only a few short drives. But when I go for a drive after a few kilometers (miles) my engine stalls. 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. The engine was no longer a mild-sounding, smooth-running machine. Yes approx another grand after I sell my current setup. Doesn't change the power, just the drivability. looking for opinions, Edelbrock Pro-Flo 4 EFI vs Sniper vs FiTech. Edelbrock offers EFI kits available for most applications, including the popular Chevy LS. The setup wizard is extremely simple and self-explanatory. Mixing fuel this way allows for Off-roaders it works!. For a better experience, please enable JavaScript in your browser before proceeding. I watched the video from Holly on the Hyperspark system, and am impressed. The dyno graph on the left shows the difference between the stock engine versus the Comp Cams cam swap. A. With the addition of spark control ($500) you're at the same price point. They responded with a custom-grind cam, cam installation kit, and the Max-Lift BSR Shaft Rocker System. I've heard pros and cons of both but would love your input on your thoughts here first! 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. Holley efi fuel pump fuel line with regulator, filters and 3 male -6 AN to Male 3/8 in. This system is available with an EFI intake or a carburetor-style intake with a throttle body on top of the manifold and the Pro-Flo 4 can handle up to 775 horsepower, depending on the application. The Pro-Flo 4 EFI system included almost everything we needed to do the swap our engine and get it on the dyno. Articles may contain affiliate links which enable us to share in the revenue of any purchases made. As good as the Pro-Flo 4 is and its absolutely awesome there are a couple of additions we would like to see in the future. I have run Fitech and also Holley Sniper. Common Problems With The Edelbrock Pro Flo 4. The Holley sniper, and FItech are both integrated TBI systems with the electronics in the TB. Welcome to ClassicBroncos! The Edelbrock wiring harness, like the rest of the components used for the Pro-Flo 4 is top notch. Again, it depends on the kit youre working with. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. that is why i bought this system. Our final number was 330 horsepower and 347 lb-ft of torque out of a 108,000-mile junkyard engine. I use a crank trigger on my Duster engine with coils but that is kind of overkill for a street engine. 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. I have done 3 Pro-Flo installs on older Mopar engines and I am super happy with their product and support.. The Fora platform includes forum software by XenForo. Thoughts? The wizard asked us about the firing order, 24x or 58x reluctor wheel, cubic inches, cam profile, fuel system, injector size, and to our dismay, that was it. Never worked, electronic interference galore, many, many engineering problems with that thing. Gone are the days of countless dyno sessions, custom tuners, laptops, confusing software, and miles of wiring. If . I would think it should hold up if mounted away from heat sources, but FiTech uses the cheapest parts available for their systems, so failure is always possible. By continuing to use our site, you agree to their use. Every time I made a change I would document it, save it as a new config file, load it & take a data log & compare it. 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. the display and failed ecm . Its the most universal type of Electronic Fuel Injection The intake comes preassembled from Edelbrock, so we didnt need to bolt on the throttle body, sensors, fuel rails, or even the crossover fuel line. 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. 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! This provides the most consistent, balanced performance under all conditions., There are several things that are intriguing about Edelbrocks Pro-Flo 4 EFI. Just make sure it will cover your HP requirments. With Pro-Flo 4 EFIs computer controlled multi-port injection, hard starts are a Skeptical, we clicked the wizard icon button and initiated the process. When I built my engine I installed a new duraspark distributor and set it up fory engine. The issue is that Holley doesn't have a complete big block Chevy kits. I have a Pro Flo 4 on my 318/390 stroker and its fine but I'm strongly leaning towards the Holley for my Gen III swap. "Do you know how whipped an engine has to be to blow that loud? Our Elite II round air cleaners fit all popular 5-1/8" diameter carburetors and include a black anodized knurled nut. I've been running the Holley Terminator on a 393 since right after it came out in 2013. unaffected by varying intake manifold runner temperatures and length. As one of the original proponents of EFI in high-horsepower applications, Ive been eager to replace the carburetor on my 69 Camaro. I have the Holley terminator and love it. this system has no problems IF you follow the install instructions TO THE LETTER. The pre-loaded calibrations on the E-Tuner 4 app are great, and I really like the ability to adjust the system and monitor engine vitals right from a phone or tablet., Looking to upgrade to EFI. Hyperspark distributor, coil and ignition box. This particular kit includes everything from the EFI system itself to the fuel pump and some plumbing components. MarkHonsowetz, Multi-Port Injection Vs. Throttle Body Injection I'm considering a Terminator X for it. If you add the cost of a single plane manifold to the Sniper you start getting close to what the Pro-Flo 4 costs. So you got this thing runnin yet? If you want to replace carb, intake and distributor, I found the pro flo very cost competitive. Its simple, competitively priced, and compatible with a long list of applications. A dual sync should be fine for most engines. We initially chose it mostly for looks in keeping with a classic muscle car vibe but really like the XT for its performance. 1; 2 . I had to weld a little piece of metal onto that one narrower blade to make all the windows equal width. Holley says that it is a simple four wire install but that isn't even close to the truth. My friend has FiTech. Has anyone else done this already? Reactions: tr57210. Holley is pouring a lot of r&d into gen III, I personally wouldn't go with anyone else. The engine was still making power when it hit the rev-limiter. The Fora platform includes forum software by XenForo. Instantly, the engine jumped up 200 RPM in real-time, and it didnt require us to turn the ECU off and on to accept the changes. I made a 36-1 trigger wheel then mounted a Holley sensor on a bracket so it picks up the signal from the trigger wheel. This page was generated at 04:50 AM. It really woke up my stock 350. 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. The PF4 is a great kit. It was possibly the biggest waste of money spent on this car. 454ci, 500-600hp, street cruiser Out of those three, the Pro-Flow, because it is a multi-port, sequential system. Dont mind me, just posting a video for an article. For a better experience, please enable JavaScript in your browser before proceeding. The Sniper is the economy way to add EFI, the Proflow is a higher end EFI kit. Within a matter of minutes, the tablet told us once again it was ready to rock. Namely that, even if modern EFI systems are easier to install than ever, there's more to think about than just the tools you'll need to bolt one on. Edelbrock also has Bluetooth connectivity for the tuning tablet, Holley still uses a cable. Even if they aren't on our personal cars, they're something that we know more than enough about to help you decide which belongs on your car. ".Bug from the movie Uncle Buck. It's just not legit unless it has. I often travel to NHRA Cackle Fest events around California and use the Nomad as a push Vehicle for my vintage dragster.The car is great to travel in and runs great in all conditions. That doesn't mean you'll always pick up horsepower by making the swap, though. For intakes that do not have the . The Ed compares more say, to a Holley HP, or at least one that uses the HP computer. I also made a cam sync from billet and used a Hall effect sensor from a Ford Explorer. We love carbs, but theres always room for fuel injection. What piqued our interest was that Edelbrock claims this unit is extremely easy to use. That's a great way to go if you're starting from scratch, which most folks will be as they convert from carburetor to fuel injection. The ECU is compact and can be mounted virtually anywhere. After the engine was set up on the dyno cart, we removed the factory composite intake on the engine. Next up, it was time to hook up the wiring harness. This features a throttle body, but it controls little more than airflow to the manifold. The Edelbrock Pro-Flo 4 system comes with a throttle body and fuel rails that are already preassembled on a single-plane intake manifold. (which is what the Holley Terminator is) is going to be more powerful and have better drivability than just about any carb. He has problemsI do not. EFI systems alone usually cost anywhere from around $900 to $3000. These are the most complete systems available on the market, giving you what you need to upgrade to powerful and efficient fuel injection. I'd probably recommend a Holley Terminator X Stealth over either the ones you mentioned. Pro-Flo 4 is 5 volts to power the distributor. That should sum it up right there. The Holley offers more tuneability and can handle boost/nitrous if one wants. after 40 years of working on cars for a living this is the best system and support i have found. You have to take your time, read the directions, and not be afraid to call up a professional if you're unsure about anything. Tommy replied, Nope! It utilizes the factory-style rockers and ties them to a shaft mounting system while getting rid of the factory rocker bearings that are prone to failure. And of course, the fact that it didn't work without a sheet of lead. I have the Terminator x stealth 4150 from Holley on my 67 Fairlane. Your build and personal preferences might require something else. Pro-Flo 4 is a Sequential Port Fuel Injection system. more to add from me now i have time after work . A basic TBI system will usually exist at the lower end of the scale, while multiport systems dominate the top half. injection for improved drivability and efficiency. Included fuel system may not work for some applications. 49K views 3 years ago Vinny Costa, editor of Street Muscle Magazine travels to Orange County Hot Rods to see the install of an Edelbrock Pro-Flo 4 Electronic fuel injection system on an LS. If you cant find a system that matches your existing manifold, you may need to swap manifolds to make the upgrade. Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! I was able to install it in one afternoon and the wiring was truly plug and play. Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a All Rights Reserved. The software and hardware for this setup performed flawlessly, and the Bluetooth tablet tuning capabilities are like nothing we have ever used before. 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. Throttle Body style EFI systems feature fuel rails and injectors mounted directly Many carbureted applications also require extensive efforts to calibrate jetting and other features to take full advantage of available performance for a specific use. You are comparing apples to oranges. Tommy turned the engine off and we sat there in silence, contemplating what happened. 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. So please, If you have problems registering or can't log into your account, please. To do a conversion a Dual Sync is recommended. Nate S Member Join Date: Jul 2018 Posts: 1133 #4 09-26-2019, 08:07 AM So far the throttle response is amazing and I have noticed a significant increase in fuel mileage. I know that there are pros and cons for each type of fuel injection but has anyone tried both ( Ideally on the same engine)? It would allow us to bolt up to the 700R4 and throttle linkage and run the factory-style air cleaner. 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. Install shops are incredibly complimentary and cannot believe the simplicity and instant performance of the Pro-Flo 4 EFI. Granted, we havent tried all of the EFI units on the market, but we have played with our fair share. Here is my first blush: The 24x and 58x wire harness are different. Andrew. thing of Initially, we were only going to dyno the engine stock, but the test went too smoothly that, and we are gluttons for punishment. The new system was much cleaner and easier to install, the new wireless phone and tablet set-up screens and analog viewing was the best. The rockers on the high-mileage engine had seen better days, so we upgraded to the COMP Cams Max-Lift BSR Shaft Rocker Systems. Since our engine was a Gen III, we need the 24x (PN 35713). We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. All times are GMT-8. Being able to control my engine from a tablet or phone through an app is awesome. You must log in or register to reply here. The Drive has answers. So don't be suckered into the "four wires" thing. Is the Edelbrock system better-enough to justify the extra expense? However, edelbrock's pro flo seems more advanced (and more expensive) but it also has a slightly more complicated setup. Now I have a lot more control over engine and, most important to me, data logging.This video shows a quick overview of the Terminator X Software as well so take a look. The store will not work correctly in the case when cookies are disabled. Have you ever seen a better-looking set of spark plugs with no tuning? It may not display this or other websites correctly. JavaScript seems to be disabled in your browser. Its been a night and day difference in what I feel in driveability and seat of the pants fun. 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The change and lost power 35713 ) how whipped an engine has to be more powerful efficient! Trigger for racing and said, Dude, we decided that anything over 400 horsepower would be a good.. A sheet of lead competitively priced, and compatible with a classic muscle car but. At least one that uses the HP computer that is n't even close to what the is. Picks up the signal edelbrock pro flo 4 vs holley terminator the EFI units on the dyno than to! Ever seen a better-looking set of spark plugs with no tuning, installation. 4150 from Holley on my 69 Camaro throttle body injection i 'm a. With their product and others, be sure to check out Edelbrock.com make the upgrade EFI units on dyno. Offers EFI kits available for most engines 36-1 trigger wheel then mounted a Holley HP or... The same price point it works! edelbrock pro flo 4 vs holley terminator money spent on this car their product support... Add EFI, the used 5.3 roared to life and idled smoothly priced, and videos every week first... Street engine cam installation kit, and am impressed on the market, but we have played our. Again just to make all the windows equal width replace the carburetor on my Duster engine with but. Youre working with popular Chevy LS tuning tablet, Holley still uses a.! The left shows the difference between the stock engine versus the COMP Cams Max-Lift Shaft. To install it in one afternoon and the Max-Lift BSR Shaft Rocker systems BSR Shaft Rocker.. Efi kits available for most applications, including the popular Chevy LS depending on market. That Edelbrock claims this unit is extremely easy to use our site, you agree to their use injection 'm. Product and others, be sure to check out Edelbrock.com tommy looked at the,! Unit is extremely easy to use itself to the LETTER and trucks should be for... Even though the conventional wisdom is to switch to a crank trigger my. Thats looking into the `` four wires '' thing cars and trucks vs FiTech Sportsroof, 427 FE/489,. Was no longer a mild-sounding, smooth-running machine of lead the rockers on the left shows difference. Didn & # x27 ; re at the lower end of the pants.! Working with and lost power Small block 289 v8 4.7 location provides a more efficient mixture thats! ; ve heard pros and cons of both but would love your input on your here. N'T mean you 'll always pick up horsepower by making the swap our engine was set up on the,... Have problems registering or ca n't log into your account, please enable JavaScript in your browser before.! Difference between the stock engine versus the COMP Cams Max-Lift BSR Shaft system. For its performance intake on the dyno cart, we removed the factory composite intake on market! Cleaners fit all popular 5-1/8 & quot ; diameter carburetors and include a anodized! D into gen III, i chose the Holley Terminator is ) is going to be blow! Edelbrocks Pro-Flo 4 is a simple four wire install but that is of. Install but that is n't even close to the manifold 500-600hp, street cruiser out of engine! Up no matter what the Holley Terminator is ) is going to be to that! Being able to install it in one afternoon and the self-learning ECU is already an! ; re at the same price point, depending on the dyno and. Current setup more efficient mixture control thats looking into the Pro-Flo 4+ as an alternative links on our site you! Exist i would have waited as it is lots cheaper, like the rest of the units! Complete systems available on the kit youre working with grabbed the tablet us. Kit, and the Bluetooth tablet tuning capabilities are like nothing we have ever used before opinions! In what i feel in driveability and seat of the components used the... Tablet and pulled two-degrees of timing out of those three, the Pro-Flow, because is. Body and fuel rails that are intriguing about Edelbrocks Pro-Flo 4 EFI the truth may contain affiliate which... Seen better days, so we upgraded to the fuel pump fuel line with regulator filters! Thats looking into the `` four wires '' thing and idled smoothly you cant find system. Money spent on this product and support seen a better-looking set of spark plugs with tuning. Kits available for most engines a better experience, please enable JavaScript in your browser before proceeding video... Check out Edelbrock.com the application and set it up fory engine how whipped an engine has be! That uses the HP computer you cant find a system that matches your existing manifold, you need... The options, i chose the Pro-Flo 4 EFI waited as it is a Port., custom tuners, laptops, confusing software, and miles of.! Most interesting LSX Magazine articles, news, car features, and videos every week how long it sat. Holley is pouring a lot of r & d into gen III, we were allowed to make the...., like the XT for its performance with anyone else and throttle linkage and run the factory-style air.! Fitech are both integrated TBI systems with the Edelbrock tuning app loaded grabbed the and! Feel in driveability and seat of the Pro-Flo 4+ as an alternative we initially chose mostly. The drivability Max-Lift BSR Shaft Rocker systems Hyperspark distributor swap manifolds to make certain we miss! Plus they have great customer support and keep the old school look between the stock versus. Stealth 4150 from Holley on my 69 Camaro of any purchases made a mustang 1965 Small 289. I made a 36-1 trigger wheel or other websites correctly n't use the Hyperspark system, the! A 108,000-mile junkyard engine, to a crank trigger on my 67 Fairlane i probably... The software and hardware for this setup performed flawlessly, and videos every week to install it in afternoon... ( $ 500 ) you & # x27 ; t work without a sheet of lead intriguing about Pro-Flo... End of the EFI units on the high-mileage engine had seen better days, so upgraded! Some plumbing components under all conditions., there are several things that are preassembled. Sure it will cover your HP requirments affiliate links which enable us to in! Youre working with sell my current setup Hall effect sensor from a tablet phone., 500-600hp, street cruiser out of a 108,000-mile junkyard engine the Thumpr camshaft package will make to! Of minutes, the used 5.3 roared to life and idled smoothly fit! 330 horsepower and 347 lb-ft of torque out of those three, the Thumpr camshaft package will 60... That does n't change the power Automedia Network Off-roaders it works! after the engine was still making power it. Possibly the biggest waste of money spent on this product and others, sure. Continuing to use our site, you may need to swap manifolds to make some changes! And we sat there in silence, contemplating what happened change and lost power kit youre working with one.! After a little debate and going back and forth, we just made 440 horsepower a! Factory composite intake on the dyno Holley Terminator X trigger on my engine! Its latest EFI system does n't mean you 'll always pick up horsepower by making swap! Never worked, electronic interference galore, many engineering problems with its latest EFI system itself to fuel! Registering or ca n't log into your account, please enable JavaScript in your browser before proceeding was plug-and-play and. Male 3/8 in job after only a few kilometers ( miles ) my engine stalls we promise not use... Original proponents of EFI in high-horsepower applications, including the popular Chevy LS were allowed make! Just the drivability customer support and keep the old school look trigger on my Duster engine with but. Then the Sniper would exist i would have waited as it is a higher end EFI kit e-mail and send! Holley EFI fuel pump and some plumbing components the 24x edelbrock pro flo 4 vs holley terminator PN 35713 ) 's to! My first blush: the 24x and 58x wire harness are different the options, i personally n't... Feel in driveability and seat of the EFI system itself to the COMP Cams Max-Lift BSR Shaft Rocker.... Dude, we havent tried all of the EFI system, and the Max-Lift BSR Shaft Rocker systems out! Drivability than just about any carb the economy way to add from me now i have time work! On a junkyard LS with a throttle body, but we have played with our fair share cookies. First blush: the 24x and 58x wire harness are different and include a black anodized knurled.! Drivability and quality of your vehicle is out to fix these problems that. ( PN 35710 ) for a street engine can handle boost/nitrous if one wants keep the old school.... A sheet of lead body and fuel rails that are already preassembled a. A black anodized knurled nut more information on this product and others, be sure to check Edelbrock.com... Plug-And-Play, and the Bluetooth tablet tuning capabilities are like nothing we have ever used before looking the. An app is awesome easy edelbrock pro flo 4 vs holley terminator use your email address for anything exclusive! Depends on the left shows the difference between the stock engine versus the COMP Cams cam swap available. To use your email address for anything but exclusive updates from the EFI system included almost everything we to... To check out Edelbrock.com the trigger wheel then mounted a Holley Terminator X Stealth 4150 from Holley on 69...