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  #1 (permalink)  
Old 08-27-2010, 06:07 AM
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Join Date: Oct 2002
Location: Eagle Ne., Ne.
Cobra Make, Engine: 1966 Lone Star 427SC. New Genesis 527 ci. side oiler.
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Default EFI- best quality, less problems ?

I doubt I can ever afford a stacked EFI system but, I'm curious as who's system has fewer problems. From my past research, it sounds like many people have a lot of issues with these systems not working properly, and I don't understand why ?

You would think as of 2010, all or most of the bugs should be worked out bu now. I do like the Dynakek system, as the rails are hidden, making them look closer to mechanical Webber's. Some have reported that their "self learn" system, well,.....sucks. I would prefer a stand alone computer.

Who's system supplies enough fuel for high HP, like 600 (+) ?

Anyway, lets talk quality, ranks, appearance, fewer problems and cost.
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Old 08-27-2010, 06:39 AM
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Cobra Make, Engine: jbl
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powerjection has a new setup just out with 1200cfm throttle body

look like a carb, smell like a carb, don't act like a carb.
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  #3 (permalink)  
Old 08-27-2010, 07:06 AM
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Cobra Make, Engine: Superformance SP02228, ROUSH 402R w/custom DiVinci Performance Carb.
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Mass-Flo EFI http://www.mass-floefi.com/
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Old 08-27-2010, 07:30 AM
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Cobra Make, Engine: SPF #298 427 FI
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Mine worked quite well before the computer went haywire. Most of the problems are with the ECU not the mechanical part of the system. Mine was custom made individual 8 stack injection. (still have it if anyone wants to buy it cheap) The main problem is computer that controls it. Most people are not fluent enough on the computer to do it. Here is a great link to all the different controllers out there.


http://fordfuelinjection.com/?p=65

Last edited by mpanten; 08-27-2010 at 07:37 AM.. Reason: added link
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Old 08-27-2010, 07:46 AM
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"Mine was custom made individual 8 stack injection"

Is it just the stacks ?

I have two friends that have a chassis dyno and are very good at adjusting fuel systems.
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Old 08-27-2010, 08:02 AM
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Join Date: Sep 2009
Location: Hideaway, Texas (as of 2013), TX
Cobra Make, Engine: Backdraft #318, 418 CI, 532 RWHP, Mass Flow Injected, TKO600-Road Race, BMW M3 Suspension, Race Springs (Wouldn't do it again, rough on the street).
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I have a Mass-Flo on 418 that finally dynoed at 580hp with a very big cam.

It has been flawless, starts immediately even after sitting for weeks, never have to touch the throttle to start, self tuned when we changed the cam, and the thing gets 17+ mpg with mixed blast around and freeway driving. It looks like a jewelery like big carb under the hood.

Once it's in place, you just go. Any mod you do to the motor will either cause more or less air to go through the intake, and the system adjusts to the air flow. Very simple and effective. I went from 535hp to 580 with just a cam change and it adjusted to the change immediately, we didn't do anything but start it, warm it up, do the pull and read the numbers and a/f number, which was the exact same before and after the cam change.

One downside for some is the current system is 1000 cfm and it look a bit restrictive at first glace where the mass flow meter sits above the intake.....but it still lets my little 418 put out some big numbers and has street manors that are great.

The only other downside I have found is the issue of a big overlap cam and lots of idling, and a less then perfect pcv setup. If you suck an excessive amount of oil into the intake and the lumpy cam spits some of it back up the intake and it coats the sensor wires on the mass flow, the information the computer reads will slowly get bad. The solution is to use a mass flow spray cleaner and just squirt the wires clean.....and fix the pcv puke problem so you don't have to do it again, which I did.

Personally I would avoid anything that required computer tuning (that statement will probably get a hot response). My reason is really pretty simple. This system can make big horsepower, get you good gas mileage and you don't have to mess with it at all, ever.

I wouldn't go back to carbs, choking on the fumes at red lights and 8 mpg for anything. My only experience is with Mass-Flo and their guys which ihas been exceptional. So others that use the same technology might be just as good. This has worked great for me. Turn the key and go, every time.
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