EFI Conversion Explained: Everything You Need to Know

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

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

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

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

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.

awesome information as always ! keep up the great work!

Good stuff. Thanks guys

Great episode, thanks!

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!! 💪🔥

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.

I got that exact dual quad system and it never ever worked. No one, but no one, could ever get it to work either. Took it to 2x dyno tuners and both of those were just left scratching their heads. Tried to return it and they said it was an installation error for which they can't be held responsible and they won't accept any returns. I'm a qualified mechanic the installation was 100% perfect. So fast forward turns out all the onboard ECUs were faulty subject to a class action in California. They try and sell you a new ECU even though the EFI system never ever worked, they knew there were problems and they treated me like I was the problem. Completely unethical in my view. Also the manufacturer never mentions that their dual quad system doesn't fit on latest SBC dual quad manifolds - apparently that isn't their fault either but mine. The anger is coming back, a very bitter experience.

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.

I definitely need this in Colorado high altitude

I fit a A/F gauge to my 360 engine with a 750 holley. I was shocked at the readings. Once you drive about part throttle, backing off with high vacuum situations, throttle roll on's I couldnt believe what the carb was doing. Looked good at full throttle but its those other situations. I went EFI after that because I knew I'd never get the carb the way I want it.

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 😊

Would like to see a complete conversion of a sniper or equivalent put on a stock efi Ford 300

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.

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

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.

Guys I absolutely love your informative show!! I recently converted my 1972 mustang to a throttle body style efi. It’s a 4 bolt main 4v Cleveland engine with original iron open chamber heads 9:6:1 compression. What is a good afr for light cruising?? Thank you very much