FI tech (1 Viewer)

[lovetoski]

Saw a thread in the FB Landcruiser group about this company...

http://fitechefi.com/products/

I did some searching, including on Mud, and don't find anything about whether this could work wll on a 2F. There are some posts on jeep forums, but I only found ones regarding V8 installs, not the I6. Lots of positive posts on installs into older Detroit cars.

It looks pretty clean and easy to install.

Anybody have some info on how this would work on a 2F?

Thankyou

 

[White Stripe]

You would have to call the company and ask. A 2F has like 140hp, so the fuel injection kits offered there may be a bit too big.

 

[chelo]

I have been following different forums on this setup. Many people like it but it does have its issues. Since the ecu is built in to the throttle itself, long term reliability is not yet proven. Imagine it soaking up heat from a 2f. Four barrel only so an adapter would be needed. There are guys running this setup on inline slant 6, turbo 4cyl vw bugs but turbo.
With that being said,I almost purchased it a few months ago but I keep thinking about reliability. V8 guys who are putting these units on only report after they went out on the weekend. For example some say "i only have 200 miles and its working great". Well, I drive way more than that. The guys that have used fitech for long distances have reported unexplained shutoffs. I am waiting for the bugs to be worked out on the handheld units and so far reports are coming back the units are being upgraded.

 

[ryanwk628]

This system has been of interest to me as well. I cant find an example of one being used on an I6 but if they are using it on 1835cc VWs Im sure they can self tune for our applications. The reliability concerns are legitimate but I am a little more comfortable that they are an OE manufacturer and most accounts say they have good customer service.

 

[White Stripe]

Wow looks very very promising. Maybe install a heat shield to the ecu doesnt get blasted by exhaust manifold heat so much.

 

[chelo]

They are not oe manufacturers. The holley sniper might be a better buy.
Most users say that customer service is average unless you contact the owner directly.

 

[Mudder]

I was going to go with them for a Ford 460 but didn't like the problems they had with the fuel command center or the fact of where the ECU is located. I doubt it'll last 10+ years unless they allow you to move the ECU.

 

[ryanwk628]

They are not oe manufacturers. The holley sniper might be a better buy.
Most users say that customer service is average unless you contact the owner directly.

Youre right, they are a new company of former OE engineers and according to videos, using a lot of OE components to build these and keep the price down.

"FiTech, a new American company based in Riverside, California, is the brainchild of Ken Farrell and Jeremy Schmidt. Both gentlemen bring to the table decades of aftermarket and OE fuel-injection design and manufacturing experience"
​

I have actually read a lot of bad reviews of Holley's other systems and customer service.

 

[ryanwk628]

Saw a thread in the FB Landcruiser group about this company...

Full Product Line – FiTech Fuel Injection

I did some searching, including on Mud, and don't find anything about whether this could work wll on a 2F. There are some posts on jeep forums, but I only found ones regarding V8 installs, not the I6. Lots of positive posts on installs into older Detroit cars.

It looks pretty clean and easy to install.

Anybody have some info on how this would work on a 2F?

Thankyou

There is a question in their FAQ about heat on a 2F

benjamin September 7, 2016 at 10:39 pm Reply
I’m running an inline 6 (2F) in my FJ40 and upgrading to fuel injection. Has the FiTech unit been designed to protect itself from the heat being mounted directly over an exhaust header? My concern would be that the heat might affect the electronics. Thanks!​

1. 
   
   Bryce - FiTech Tech Pro September 13, 2016 at 8:38 pm Reply
   We have not had any heat related issues with our ECU’s. Our systems are built to take the heat of an engine compartment.
   

 

[chelo]

Just read the second post. Many of these employees worked on the powerjection systems. The wording is deceiving as to oe engineers.
I would still like to try the power power adder system with boost capabilty. Reliabity is my biggest worry.

FITech throttle body EFI? - Team Camaro Tech

 

[ryanwk628]

You would have to call the company and ask. A 2F has like 140hp, so the fuel injection kits offered there may be a bit too big.

I reached out to Fitech. They say the minimum for their 400HP kit is 150HP (however they have been open about padding their ratings in the other direction with the 400HP being able to handle 450.) It will flow up to 750CFM. Holley says the Sniper kit (600HP) has a minimum of 200HP.

I pressed both of them about CFM and displacement because its not like a 3.9L F or 4.2L 2F are small engines, they are just designed to make torque. Both kept defaulting to the HP numbers. FiTech is definitely the smaller of the two and the more likely option to work.

The other option I am seeing for self tuning is EZ-EFI which has a kit designed for inline 6 Jeeps. It has been adapted to other engines such as a Ford six as seen here with some cool photos of a custom adapter linked down the thread. This kit is more expensive, is a more complicated install and Ive found a lot more negative reviews on how "self learning" it actually is.

The FAST unit

Im not convinced FiTech would not work after seeing it run on 4 cyl engines which presumably move less air at idle than our 3.9/4.2Ls, but Im not going to buy one just to try (maybe I can convince my brother to get one for his 289 Mustang). My thought was this would be an easy upgrade that I could transfer over to a 350 if I ever did that swap in the future. O2 sensor, temp, coil negitave, power, ignition... easy.

 

[ryanwk628]

Update: A different tech named Woody at Holley just replied to an email inquiry:

"There is a 4, 6 , or 8 cylinder setting in the programmer, and also cubic inch setting. Our system will be fine. It will control the fuel.

Sincerely
Woody"​

Im going to have to call them

 

[cwwfj60]

I'm sure this could be made to work. But that's a lot of money and effort in adapting to end up with a TBI setup, which has already been done using howell and gm stuff. Not sure this would pay-off, other than looking a bit nicer.

In my opinion money would be better spent developing a multi-port system that is more sustainable than a 3fe/2fe setup

 

[ryanwk628]

I'm sure this could be made to work. But that's a lot of money and effort in adapting to end up with a TBI setup, which has already been done using howell and gm stuff. Not sure this would pay-off, other than looking a bit nicer.

In my opinion money would be better spent developing a multi-port system that is more sustainable than a 3fe/2fe setup

For me the appeal was in the self tuning with the wide band O2 as tuning seems to be the gripe of many who have installed the GM units based on my searching.... and the ability to swap it over to future V8 in my 40 or another vehicle. By the time you factor in a Painless harness its close in cost. 4 wires is less to trouble shoot and yes much cleaner. I had a thought for an adapter I still need to refine

Factory Intake to 4bbl

• ryanwk628
• Dec 2, 2016
• 3

Concept in Solidworks

 

[chelo]

For me the appeal was in the self tuning with the wide band O2 as tuning seems to be the gripe of many who have installed the GM units based on my searching.... and the ability to swap it over to future V8 in my 40 or another vehicle. By the time you factor in a Painless harness its close in cost. 4 wires is less to trouble shoot and yes much cleaner. I had a thought for an adapter I still need to refine

Factory Intake to 4bbl

• ryanwk628
• Dec 2, 2016
• 3

Concept in Solidworks

Interesting design. I like it. I ended up buying an old stock 2f to holley 2300 (downey adapter). From there a holley to 4 barrel. This would be great for stock intake.
I was going to pull the trigger on this setup but still waying my options. I now purchased an offenhauser c series intake manifold and 3fe exhaust manifold. This might work but need a spare head to mock up. More precise measuring will be taken soon but some milling would be required in the offenhauser.

What is nice on the fitech is the ability to tune it's self plus datalogging capabilities. Just have to plan the fuel setup.

 

[ryanwk628]

Interesting design. I like it. I ended up buying an old stock 2f to holley 2300 (downey adapter). From there a holley to 4 barrel. This would be great for stock intake.
I was going to pull the trigger on this setup but still waying my options. I now purchased an offenhauser c series intake manifold and 3fe exhaust manifold. This might work but need a spare head to mock up. More precise measuring will be taken soon but some milling would be required in the offenhauser.

What is nice on the fitech is the ability to tune it's self plus datalogging capabilities. Just have to plan the fuel setup.

I have been emailing tech support and I got more info from FiTech. My thought was the limitation would be with the injectors and how little they could flow at idle. However a 3.9/4.2 moves as much volume at idle as other higher HP engines with comparable displacement.

This is what FiTech told me:

"Hi

the system would start and run fine, but with that large of the throttlebody. When you go to wide open throttle the large dump the air.

You could possibly lose all intake velocity and it will fall on its face momentarily and probably even backfire through the intake.

This is why we have the minimum horsepower requirement."​

I imagine that would also be true for the holley. I like the FiTech and Holley because it was no specific to these size motors like a custom built system or the EZ-EFI. If I wanted to do a 350 swap or go back to a carb I could use/sell the FiTech/Holley so for me there was less risk in the investment.

EZ-EFI did reply to me when I inquired about their kit designed for Jeeps that I have also seen on Ford I6's.

"Ryan,
We could run that kit on the Toyota engine I'm sure. The adapter that comes in the kit for the Jeep intake obviously wouldn't work, but you could adapt it to the Toyota intake, or come up with a different style. Our throttle body systems us a 4150 flange base. The Jeep kits are limited to about 350HP and flow upto 1250 CFM. We offer them with or without universal fuel pump kits for both inline and intank applications.

Let me know what you think and if you need more information or help placing an order, as we can set your up directly."
​

I need to research if the throttle body they use for the Jeep kit is different than the 4150-style Throttle Body they say supports up to 650HP. If it is not Im not sure why their kit works on our size engines and not the FiTech.

 

[gregnash]

For me the appeal was in the self tuning with the wide band O2 as tuning seems to be the gripe of many who have installed the GM units based on my searching.... and the ability to swap it over to future V8 in my 40 or another vehicle. By the time you factor in a Painless harness its close in cost. 4 wires is less to trouble shoot and yes much cleaner. I had a thought for an adapter I still need to refine

Factory Intake to 4bbl

• ryanwk628
• Dec 2, 2016
• 3

Concept in Solidworks

That looks almost like the Downey adapter that most used when Downey was still making his kits. 1969-87 Toyota Landcruiser TBI Conversion Adapter | eBay
So looking at this, and coming into the thread a bit late, what is the benefit of the FiTECH system over some of the existing systems? Is it because of the simplicity that the ecm is mounted to the tbi body itself or ???? You could always go for AFI (affordable fuel injection) system or the Redline Cruisers system as both are still existent and seems pretty rock solid.

 

[ryanwk628]

That looks almost like the Downey adapter that most used when Downey was still making his kits. 1969-87 Toyota Landcruiser TBI Conversion Adapter | eBay
So looking at this, and coming into the thread a bit late, what is the benefit of the FiTECH system over some of the existing systems? Is it because of the simplicity that the ecm is mounted to the tbi body itself or ???? You could always go for AFI (affordable fuel injection) system or the Redline Cruisers system as both are still existent and seems pretty rock solid.

I like the idea of a wide band O2 sensor and it being self learning. That seemed to be a gripe of a lot of people with these GM composite setups which have earned the nickname "fool injection" by some here on Mud. Youtube has some great videos on how easy set up is with the FiTech. I like that it is clean, with just 5 or 6 wires. It has a larger market appealing to V8 guys so presumably there will be a larger knowledge base. Also if I ever wanted to change back to a carb I could sell it to anyone with a V8. My 2c

 

[gregnash]

Ah ok that makes sense... Basically, it is a "smarter" FI system than the others due to the wide band O2 sensor capability. Seems like the system would be nice setup, and a bit cheaper than the others (looks like probably close to $1k for everything vs. $1300+ for the others). Will have to do some looking, eventually when my 2F is no longer a viable solution for the truck I will convert over to SOMETHING, probably go with a Vortec but if funds are tight I may go with a SBC 350 TBI setup which this sounds like it could be a good add-on eventually to help increase the system capabilities.

 

[ryanwk628]

Ah ok that makes sense... Basically, it is a "smarter" FI system than the others due to the wide band O2 sensor capability. Seems like the system would be nice setup, and a bit cheaper than the others (looks like probably close to $1k for everything vs. $1300+ for the others). Will have to do some looking, eventually when my 2F is no longer a viable solution for the truck I will convert over to SOMETHING, probably go with a Vortec but if funds are tight I may go with a SBC 350 TBI setup which this sounds like it could be a good add-on eventually to help increase the system capabilities.

That was my thought. My father has a 350 is with Vortec heads he will never get around to using so I could probably have it for free should my I6 ever die.