Anybody ever tried FI Tech fuel injection?

[raymond73]

I am use a msd pro billet small cap pn 8546 and a msd 6aø analog box pn 6420 With a msd 2 belaster coil. It was all god when i use a pro system 4150 carb on the 440!!!!

[raymond73]

It fire With gasoline from a bottle.. I think that i missing rpm to fire the injectors.. But my tach is Reading so the msd sending signal... Maybe a fault in the unit? Any here have a idea?

[igozumn]

Did you select "TACH" in the "TACH or 2-wire+coil" field in the initial setup?  Not sure what else to check.

[raymond73]

Yes i have selected tach and reboot the system. I Will try to call fitech tomorrow!!! 

[moparguy01]

Raymond73, does it fire off but not stay running? Mine did that until I realized I had to up the idle some. There is a Phillips screw on the left front of the throttle body. I had to put a whole turn on mine before it would start and run. It was perfect after that.

[moparguy01]

Also, make sure to pull the Rev limiter chip from the MSD!

[raymond73]

Yes it starts but only for a second or 2.. I Will try that tomorrow. Did You get any rpm Reading on the controler?

[moparguy01]

Yes, but it very low.  400-500rpm. Try turning that screw and let us know.

[raymond73]

Hi i have try too adjust the idle but Notting happens!
It Just firing on the gasoline the priming has put in to the body! And No rpm at the controler but i have rpm at my autometer tach.
I have to call fitech.. But i have to wait because California is 9 houers after norway

[raymond73]

Hi i had to reload the system With the default v8 program inside the controler. It was missing rpm signal. But now its Running nice at idle and driving but full trotle its No god it feels like it choke!!!
Any idé!

[68CoronetRT]

Did anyone regulate the return line for pressure after the fitech unit? Or just TBI return connected to the tank?

[igozumn]

I'd say 2-3 seconds.  I've been meaning to do a cold start video and drive video.

You can reduce the cranking time by quite a bit by changing the prime adjustment in the handheld controller. Go to "EFI tuning", "crank and warmup" then change the #1 to around 200 and the #2 to around 10. YMMV

This changed my cranking time from 2 seconds plus to a half second.

My #1 was already around 256.

[GD.Kiv]

Need some help to chose a fitech unit. I allready have a dual carb setup with the edelbrock c28 dual manifold rpm. The price for  the dual or single fitech setup will be the same. But what would perform better? The manifold i have now. Or a single manifold? Thinking about using the torker 2 if i go with the single

[GD.Kiv]

Sorry for the simple writing i use. On the phone and with crap internett out in the sea. So have to type quickly before i get timed out. With a carb i think the torker 2 would be better but not sure how it works with a dual efi setup. Dual quad edelbrock rpm c28. Only info i can remember about my current intake at the top of my head

[Troy]

For this system, it's best to think of it as a self-tuning carb so you want to use the best intake for your specific engine build *AS IF* you were running carbs (ie a dual plane intake will likely be more streetable with better low end torque and a single plane will give you more power up top). As for whether single or dual carb/throttle body is better, I don't know. In my limited experience, "multiple" just means more stuff to go wrong. However, since these units come as a pair I'm assuming they have calibrated the computer to handle it.

What sort of power output do you have and what do you use the car for?

Troy

[GD.Kiv]

Output is around 450 hp. Maybe a little more. Its a 440 with some mild uprgades. Its a street car but i like to have fun. :lol:One reason i wanted to go efi was to get rid of my problems with the dual carbs. As you say more that can go wrong. Maybe i should ask support at fitech.

[JR]

Just wanted to share an update with my experience so far.

The FiTech unit has been great, but I learned something for you guys using the tanks Inc fuel tank kit.



The fuel tank vent valve, this little guy here,



MUST be mounted higher than the fuel filler neck. Which is easy on a 1st or 3rd gen (I assume), but if you have a 2nd gen, that can be a problem considering the filler neck sits on top of the quarter panel.

Originally, I thought it only had to be higher than the tank, and mounted it under the car, between the shock mounts. This caused it to pour fuel out of the vent after running a while and was discovered at an AutoX.

Next, I tried mounting it level with the top of the filler in the trunk. Which seemed to work unless the car was facing downhill. Then it started leaking fuel out the vent when parked, (damn it!).

So in a last ditch effort, I made a bracket for it to sit inside the passenger side sail panel. That is the highest point I could possibly have it and have it out of the way.

Finally, it seems to do the trick. No leaks so far.

It was my fault for misreading the instructions originally, but this seems to work. If any of you guys have any suggestions on where you mounted yours, I'd love to hear it also.

Hope this helps someone.

[Derwud]

The fuel tank vent valve, this little guy here,



MUST be mounted higher than the fuel filler neck. Which is easy on a 1st or 3rd gen (I assume), but if you have a 2nd gen, that can be a problem considering the filler neck sits on top of the quarter panel.

Originally, I thought it only had to be higher than the tank, and mounted it under the car, between the shock mounts. This caused it to pour fuel out of the vent after running a while and was discovered at an AutoX.

Next, I tried mounting it level with the top of the filler in the trunk. Which seemed to work unless the car was facing downhill. Then it started leaking fuel out the vent when parked, (damn it!).

So in a last ditch effort, I made a bracket for it to sit inside the passenger side sail panel. That is the highest point I could possibly have it and have it out of the way.

Finally, it seems to do the trick. No leaks so far.

It was my fault for misreading the instructions originally, but this seems to work. If any of you guys have any suggestions on where you mounted yours, I'd love to hear it also.

Hope this helps someone.

You are talking about the end of the vent line, yes? My 70 has ECS, which has a tube running up the right side fender panel. I was hoping to get rid of it, but sounds like I may be reusing it.

[myk]

What are all the other Fitech users doing with this?

[JR]

Yes Durwood, it's the vent line/rollover valve breather.

Myk, I'd like to hear what others have done also.

But the guys running the stock tank and the Fitech fuel control unit won't have this problem though.

I have been driving the car alot today and am happy to confirm the new location in the sail panel is still working great. I'm still glad I went with the tanks Inc setup.  

[igozumn]

I didn't use the supplied vent.  I routed the 2 vents (one from tank, other from pump) into one line (as most have) and ran it up into the trunk through one of the plugs and tee'd into the factory vent on the side of the filler tube.  I had broken the original connecting hose there, so it was easy to hook into it.  Whenever I get around to doing the bodywork, I'll bend a hardline and hide/route it better.

[Troy]

In case anyone is wanting to jump on board, I ordered a 30004 (600 HP Power Adder) to get in on the rebate. I knew it was backordered. I got a call from the vendor the other day and word from FiTech was that there are over 1,000 of the 30002 models (basic 600 HP) on back order that they are trying to fill first. I have no idea how fast they are making them.

Troy

[Derwud]

In case anyone is wanting to jump on board, I ordered a 30004 (600 HP Power Adder) to get in on the rebate. I knew it was backordered. I got a call from the vendor the other day and word from FiTech was that there are over 1,000 of the 30002 models (basic 600 HP) on back order that they are trying to fill first. I have no idea how fast they are making them.

Troy

Wow, good for them.. I wonder if they have the 1200 power adder units.

[John_Kunkel]

What are all the other Fitech users doing with this?

Here's how I handled the vent, epoxied a fitting to the filler pipe and ran a 1/4" rubber line from the Command Center to it.

[68CoronetRT]

Just got my 30004 kit running this weekend. All I can say is WOW. This thing is awesome!! Pulled the fuel trims a little and fires up cold, warm and hot on first crank.

My ONLY issue is the idle doesn't seem to come up fast enough when cold and on a hot start come down quick enough to targeted RPM. But that takes 10 seconds and its fine so I'm not super worried about it.

Great investment!! x2 on the Tanks Inc setup for sure.

Oh and for the vent line, I just used the factory line that crosses back and forth in the trunk then into the frame rail which I assume dumps there. I dont plan on ever flipping the car over and if I do, leaking fuel is the least of my worries at that point. IF it even leaks. This is not a Charger though, so might be different.