EFI Conversion Explained: Everything You Need to Know

Dive into the world of EFI (Electronic Fuel Injection) conversions with Pat and Frankie, the experts from Engine Power! We're exploring everything EFI, starting with Throttle Body Injection (TBI) that mimic a carburetor to the nitty-gritty of port fuel injection for that precise fuel control. Then learn about fuel systems, the importance of various sensors, and the sometimes-daunting task of wiring. Worried about tuning? Fear not! Pat and Frankie break down the tuning process and explain EFI software. Whether you're looking to improve your fuel efficiency, power output, or just enjoy new automotive tech, hit play and prepare to tackle your own EFI conversion project.

0:00 - EFI Conversion Tips
0:22 - Types of EFI Conversions
3:33 - EFI System Requirements
6:49 - Wiring EFI Systems
8:48 - Tuning EFI Systems

Watch Junkyard Ford 445

Watch Boosted 4.3L V6 (Pt 1)

Watch Boosted 4.3L V6 (Pt 2)

Watch AMC 304

Watch Turbocharged Mopar Slant 6

[hobronco]

Are frankie and pat having a competition who can have more stuff in their shirt pockets? Lol

[icemanification]

I'd love to see you guys build an air-cooled VW engine someday. Been a fan since the days of TNN. Glad too see you guys are still around. Haven't been seeing any new videos and I've been worried the show was canceled. Keep up the good work. You guys rock!! 💪🔥

[Garage]

Solid overview. Most of the off the shelf systems now are easy to install and work great. Even if you want to do a fully custom conversion, there are a lot of resources out there to walk you through it.

[Axrhave]

Great vid guys. I purchased a Fitech efi for my sb ford project. Looking forward to seeing it run.

[angryyankee]

Just bought a FiTech system for the 350 in my jeep. Excited for the improved drivability.

[lancefitzpatrick]

awesome information as always ! keep up the great work!

[davidbiddy]

I’m building a 72 Charger Rally with a stroked 440 (512) cu in with a Fi tech six pack on top. I’ll be putting the engine in soon

[mhmadgenious]

Pat your looking good man keep doing what your doing

[johnniehunter]

Loving the videos guys if it’s possible could you do some more videos on straight 6 builds like you guys have done in the past 😊

[turbocoupe]

Megasquirt makes EFI easy. Can run almost any engine. Initial setup is easy and building maps is automatic. Then is self tunes. For $400, it's all you need. My 452 cu.in. FE Ford with 8 stacks runs on a Megasquirt. So does my twin turbo 4.6 Cobra motor in my '32 coupe. The wiring harness tells you were everything goes. Don't pay big bucks for a Holley or other aftermarket system, use the money for other parts of your project.

[cameracamera]

The biggest part fpr me and others is making a high pressure fuel system on older cars. Pump in/out of tank, filters in/out of tank, regulators in/out of tank, fuel /return lines, connections, power to all etc. If I was power nation/engine power I commit a whole episode or several to setting up fuel systems for several common setups so people see how to do it. We learn massive indepth engine building techniques from ypu guys but I seem to miss the fuel stuff. So an example one of my boys 1998 vortec roller cam 350 rebuilds. NO hole for m3chanical pump. My children want an old school hotrod with some minor new stuff like roller cam. Now they are stuck with an electric fuel pump. Takea the fun out of it not knowing what to do there for them. Fuel systems! Please.

[LukeEdward]

Frankie & Pat, please continue these wonderful videos. #Powernation - please do not squash these wonderful videos and personalities.
Could y’all do some older 4cyl EFI conversions? I’m talking 60’s & 70’s ignored and forgotten 4 cylinder engines into the modern era. Pontiacs, AMCs, the “off” stuff.

[royandrade]

I definitely need this in Colorado high altitude

[JimmyMakingitwork]

I saw a video where a Carburetor Guru was saying F.I. gives the engine the fuel regardless of what the engine wants based on software but a Carb once tuned correctly gives the engine what it asks for.
Made it really clear they didn't understand fuel injection at all. And it was an "Expert" carb tuner. lol

[MrLukealbanese]

I'd love to see you guys do an ITB build 😊

[BillMulholland]

Iv always wanted to see a full build and find max horse power on a 455 with just a single carb, the biggest carb. No boring. Thanks

[therocketz]

For any application you should run port EFI if there's a dual runner intake manifold available for the engine that meets your power, and emissions, goals. Historically that has been the greatest obstacle, particularly with port injection, because port injection needs a dual length runner manifold to take full advantage of its capabilities. If you have that manifold, you can run a wide LSA, that allows it out perform as well as run cleaner and smoother than a dual plane carb or tbi setup with a narrow LSA from idle to peak torque. It can also be set up to outperform a dual plane carb setup past 7000rpm at the same time. All of that isn't possible with a carb because the fuel won't distribute properly through a dual runner intake, and you have to run a narrower lsa to get the power.

[allencampbell]

At 1:00 where the "Boosted 4.3L V6" is shown running up, you can see fuel dripping off the throttle body linkage.

[normandocaban]

good vic explaining how the after market EFI components work and what can be done, but the title of the video gives the impression that you would cover the pros n cons of the EFI conversion . It would have been much better, if a comparison between a carburetor and EFI engine had been included, as well as when the cost is worth the effort.

[jamesgrantom]

I need to see a Straight 8 build and an EFI Ford 300 inline 6 build from mild to turbo monster and I've got one I'd love to let yall build for me.