JGooch600 Posted June 23, 2019 Share Posted June 23, 2019 Hey everyone. I know I’ve posted about maf conversion, but I was wondering if anyone has ever used the FI tech fuel injection system. Wanting to convert to either MAF or the FI tech and can’t make up my mind on it. The FI tech seems to be a pretty advanced system and you can tune it with a hand held monitor. The reason for converting is so I can run an aggressive cam. Anyone have any experience with the FI tech? Link to comment Share on other sites More sharing options...
85lebaront2 Posted June 23, 2019 Share Posted June 23, 2019 No FI Tech experience, have a 460 converted from carbureted to MAF/SEFI using all Ford parts. I can tune my EEC-V box with a Mongoose Pro Pass-through cable and Binary Editor. Since you have the early Ford EFI any improvement would help I am sure. I don't know on the FI tech units, but the Ford systems from 1987 up do use a speed sensor input and the trucks got MAF/SEFI systems on the 302 in 1994 so a junkyard could be a excellent source of parts. The EEC-IV system requires a piggyback tuner such as Moates or TwEECer to "adjust" the tune. The EEC-V can be direct flashed, but would require a bit more harness modifications starting with the EEC connector as it went from 60 pins to 104 pins. Link to comment Share on other sites More sharing options...
1986F150Six Posted June 24, 2019 Share Posted June 24, 2019 Anyone have any experience with the FI tech? Not with FI Tech, but on FTE, there is a moderator [AbandonedBronco] who has a stand alone FI system made by Holley. You could contact him or read his thread. It is found in the six cylinder forum... his engine is a modified 4.9L. Link to comment Share on other sites More sharing options...
Ray Cecil Posted June 24, 2019 Share Posted June 24, 2019 I've though about using FI Techs 2 barrel on the 300 straight six, but I hope to turbo it one day, and their 2 barrel in not power adder friendly. Only their 4 barrel is, and it woul dbe way too much intake cfm for the 300 six. Even a 600 Edelbrock is too much. Most people stay in the 400-550cfm range on the 300 until they start doing a lot of aftermarket performance goodies. Carbs work. They are cheap and simple. When tuned can get within a mile or two per gallon of FI. Proper choke operation is critical, as well as timing and optimizing the jetting. FI does all that for you. If all you are doing is running around town occasionally and not changing elevations drastically, I would run a carb, get it set up right and drive it. I plan on taking my 82 on some long road trips in a couple years, so FI might be in order. Setup your vehicle how you want, don't let anyone tell you that their way is better than yours. In the long run, it doesn't matter as long as you are happy with it. Link to comment Share on other sites More sharing options...
grumpin Posted June 24, 2019 Share Posted June 24, 2019 I've though about using FI Techs 2 barrel on the 300 straight six, but I hope to turbo it one day, and their 2 barrel in not power adder friendly. Only their 4 barrel is, and it woul dbe way too much intake cfm for the 300 six. Even a 600 Edelbrock is too much. Most people stay in the 400-550cfm range on the 300 until they start doing a lot of aftermarket performance goodies. Carbs work. They are cheap and simple. When tuned can get within a mile or two per gallon of FI. Proper choke operation is critical, as well as timing and optimizing the jetting. FI does all that for you. If all you are doing is running around town occasionally and not changing elevations drastically, I would run a carb, get it set up right and drive it. I plan on taking my 82 on some long road trips in a couple years, so FI might be in order. Setup your vehicle how you want, don't let anyone tell you that their way is better than yours. In the long run, it doesn't matter as long as you are happy with it. I agree. I replaced my factory Holley with the Holley 600 CFM, ordered jets for the elevation I’m at and it’s running great, I’m real happy with it. Link to comment Share on other sites More sharing options...
Gary Lewis Posted June 25, 2019 Share Posted June 25, 2019 I've though about using FI Techs 2 barrel on the 300 straight six, but I hope to turbo it one day, and their 2 barrel in not power adder friendly. Only their 4 barrel is, and it woul dbe way too much intake cfm for the 300 six. Even a 600 Edelbrock is too much. Most people stay in the 400-550cfm range on the 300 until they start doing a lot of aftermarket performance goodies. Carbs work. They are cheap and simple. When tuned can get within a mile or two per gallon of FI. Proper choke operation is critical, as well as timing and optimizing the jetting. FI does all that for you. If all you are doing is running around town occasionally and not changing elevations drastically, I would run a carb, get it set up right and drive it. I plan on taking my 82 on some long road trips in a couple years, so FI might be in order. Setup your vehicle how you want, don't let anyone tell you that their way is better than yours. In the long run, it doesn't matter as long as you are happy with it. I agree. I replaced my factory Holley with the Holley 600 CFM, ordered jets for the elevation I’m at and it’s running great, I’m real happy with it. I'm following in Bill/85LebaronT2's footsteps and converting Big Blue to '96 CA-spec EEC-V. Then I'm converting Dad's truck to the same. One of the reasons is what Ray mentioned - altitude. I plan to drive Big Blue to some very high locations and don't want to mess with re-jetting the carb. And, there's the MPG, which has surely got to be better with MAF & SEFI than with a carb. In addition there's the ability to put a scanner on the OBD-II port and have the computer tell any mechanic what the problem is. That's a significant benefit when you are 70+ years old and expect to pass the vehicles down to offspring that don't know anything about carbs. But, I do agree - build it the way YOU want it. Link to comment Share on other sites More sharing options...
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