Just found this in one of my car mags. Old issue. I actually only have one of the articles left, due to a water pipe-bursting incident at my uncle's. The article is about painting your own car (neat article), and one of the ads is for this EZ-EFI system. It actually looks pretty darn nifty. I'm assuming it would work for our trucks, although I didn't see anything disclaiming it wouldn't. The site says Ford 302, and that's what I have. They also have another system called XFI.

Personally, although it's out of my budget by far (at least in comparison to other things I need to fix/take care of), if I were to ever go EFI on my truck, this looks like the way to go. Rather than mod the engine or swap out for one, pop this thing o where the carburetor goes. What do you guys think??


Master kit

Base kit

 

Easiest thing may be to Google reviews on it. Could be smoke & mirrors.





John

 

yeah i kinda agree with jo on that but something i seen on twoguys garage was a throttlebody fuel injection kit for carburated vehicles from edelbrock im not sure how much it is but it mounts up smoothly and gives you some of the benifits of fuel injection

 

One of the Mustang magazines has an article about the Fast system this month. Either Mustangs and Fast Fords or 5.0 Mustangs.

 

Anyone ever see massfloefi.com for FE engines,looks like the real thing.I think Chip Foose used one of these on an Overhaulin episode and it did everything it said it could do.Price is kind of high though but I am thinking about trying it sometime down the road.

"bowties in the rearview mirror"

 

In general, fuel injection systems provide big gains in power and/or fuel efficiency when they have individual injectors right in the ports in the heads, and the amount of fuel released each time is tightly controlled by sensors and electronics. That's what modern EFI engines do, and why we get a lot more power per gallon from a 2010 engine than we did from a 1967 engine.

One of these aftermarket throttle-body type fuel injection systems is kind of a cross between a carburetor and a modern EFI system. It's effectively an electronically controlled carburetor. The point of injection isn't as optimal as a modern EFI system, so it may never reach that level of efficiency.

But the big advantage is that it's much easier to fine tune the fuel curves on a system like this than it is on a carburetor. It's done with software and buttons, which is a lot faster than pulling a carb apart 20 times swapping jets and making mechanical adjustments. So, if you simply bolt this system onto a stock FE engine, don't expect miracles. It may not be any better than the carb. But, if you work with the adjustment curves, then you may get significant gains. If you have a modified engine, with headers, longer-duration cam, etc, then you can dial in the fuel curves for it much faster and easier.

That's what you're really paying the money for: easy fine tuning capability.

But, it costs twice as much as I paid for my whole truck......and I kinda like carburetors, just because I grew up with them.

 

Right! what XSTRANGE said!!! Holy crap. 4G'S for the system. I'm sure it's worth it quality wise but I'll stick with my carburated beast.

 

I have been also thinking of EFI for her truck as well. Going woth the 390 build. But all I find are systems for 3,000 or more. Hell thats a GOOD chunk of chain. I did find this one......seems to be true injection not just TBI.

Ford Complete MPFI System

 

Now that system looks interesting. It's a multi-port system with a manifold machined to take the individual injectors. Theoretically, that should have more potential for power/mileage improvement. But my advice above still applies; you'd have tune the fuel curves properly to see the gains.

It isn't cheap. You'd still have to weigh whether the gains are worth the cost. And it's probably less than the cost of swapping a modern EFI engine.

 

Interesting, never actually thought about swapping in a modern EFI engine!!

OK so next question, Which engines/tranny combos are the "easiest" swap into a 71 F250 chassis? Is there a chart/website or knowledge base somewhere I can review?

 

There is a company in California called Turbo City that sells an EFI throttle body unit that apparently will work on most classic V8's. Check out a YouTube video "My 1971 Chrysler Newport Custom".He has installed one on a 383.Should work on a Ford.

 

Here is a link to the EZ-EFI installation on a 5.0 engine. Start to finish with problems encountered and solutions. I'm not into EFI, but a number of the members on Classic Bronco's have gone that direction. This is the only one I know of using the EZ system. Most use stock Mustang EFI setups: FAST EZ EFI installed. Edit5. think I got the bugs worked out- page 8 - ClassicBroncos.com Forums