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Mark P 6 months ago
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Anyone here installed the FiTech fuel injection system? If so what are your thoughts on difficulty of installation and how did you do the fuel pump, in line or in tank?



Billet Bowtie 6 months ago
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I have wondered if anyone on here has installed one also. I was thinking the FITech  fuel command center would be the easiest way to add high pressure fuel.
rajeevx7 6 months ago
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What are the advantages of FITech over the Holley Sniper EFI?
vaseay 6 months ago
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Someone here DID do the FITech, or maybe it was the modified forum, but he was having some difficulty with the system and customer service with helping him work the bugs out.
Greff7 6 months ago
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I have it installed, i currently have the stock fuel tank and modified the intake line and plumping the fuel pump under the car is not difficult just that with air ride installed there is only certain areas it can be put and it is about max 3' distance from the tank and does sit lower.  I am waiting on a new fuel injection fuel tank from Tanks. Inc it is made for a 65 impala due to the reason they don't make cadillac tanks and will see if that fits. They have a intank pump that goes with it so it will eliminate the fitech fuel pump mounted under the car. The fitech its self run great on the car once it is up and running, really brings out the low end power of the car from dead stop and as far as fuel millage i can't say anything yet i hope it will increase. I have been working on and off with it to get the bugs out i have had issues with it not wanting to start up right away even after the motor is warm.
Night Flight 6 months ago
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Not trying to hijack this EFI thread, but I've been looking for an EFI-ready fuel tank and am experiencing the usual problems finding a replacement 26 gal Cadillac tank.

Re:  the Impala tank.  The website description pics imply a 37" width for this tank.  Stock tank is about 32" wide.  The 24 gal Impala tank should fit but what are you doing for exhaust?  Will there be enough room for dual exhausts?
Greff7 5 months ago
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The efi impala tank does fit but with the air ride and going all the way down to the frame i it hangs close to the ground lil to close and the stock straps will work but i plan on modifying them.   You could just by the efi tank pump and sending unit and just cut your original tank for the pump and use the old hole for the sending unit. little custom work but will save 260 for a tank that doesn't fit exactly right. the filler neck on the impala tank suck up tighter to the body. 
rajeevx7 5 months ago
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Thanks for the impal tank info!!

I’ve got a mimic bosche 44 in-line mounted near/below the rr seat area. It is about 10% as loud as my suspension compressor so I don’t foresee any future issues with it. I’m also using nifty AN fittings with braided hose after the pump feed.
Billet Bowtie 5 months ago
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Just curious why not use the fuel command center instead of a new gas tank and in tank or in line pump? Plus it is completely reversible back to stock.
rajeevx7 5 months ago
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Yes that’s a beast! Inline pumps are just as easy to revert.


One day maybe....:-) 
Truestyle Scott 4 months ago
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Speedway motors just did a video on the FItech

https://www.facebook.com/speedwaymotors/videos/10156173983864264/


<iframe src="https://www.facebook.com/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2Fspeedwaymotors%2Fvideos%2F10156173983864264%2F&show_text=0&width=560" width="560" height="315" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true" allowFullScreen="true"></iframe>

Stramboli 4 months ago
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after reading about this on the 63-64 caddy forum it seems like doing a LS swap is not a hole hell of a lot more work . 

on the 63-53 caddy websites a guy did the FItech with theyre fuel command center did a huge rite up on tunning and all that. 

one thing to remember is that you whole system {motor, fuel , exhaust ) everything need to be tight and no leaks or any vacuum leaks. he was having issues because he had exhaust leaks and the O2 sensor was reading invalid air/fuel mixtures throwing everything off.

i think people no days want to slap something on in hours and have it run like a brand new car. doesnt really work like that . lots of testing ands trial and error. 
rajeevx7 4 months ago
ActivityRank: 0
What you are saying is correct about feeding the ecu good data for good algos....but...
I own an LS swapped car and a fuel injected Caddy with a decrepit y-pipe. One was easier by lightyears:-)
Greff7 49 days ago
ActivityRank: 0
i have some updated info i have had the fitech on and been up and down with it, As for tank i would leave the stock tank in i tried a 65 impala tank made for efi, it doesn't fit exact but it works and it is 25 gal for the old girl cause it still drinks the fuel.You could just buy a in tank pump and make a new hole in the original tank and install and plug off the old fuel lines to avoid contamination and have the original sending unit for accurate fuel gauge reading my tank now bounces up and down constantly. The problem i have ran into a few weeks ago is in the hot weather that is here for the summer my fitech got so hot from my headers that it completely malfunction and would not work i had to pop the hood and let it air out for 20 min and the fuel that would squirt in would evaporate from the heat that the motor produced causing a no start issue. that is the biggest issues i have had since i installed it. i'm going to wrap my headers all the way to see if that helps at all but the 429 still produces heat. The low end of the fitech works great i have the motor timed at around 8 degrees and it gets up and goes at the low end and down the highway cruising. i have felt some issues were the fitech has missed while driving and the car stalls for a second but never has shut down on the highway. it has died on me once when stopped. I have a friend that has the 600hp fitech and i'm going to see if i can put that on and if it makes a difference with the running of the car and starting problems. the car will not fire up if the fitech doesn't start up like a carb does where that keeps dumping fuel in so you can't just sit and crank on it you have to cycle the key for the prime shot to help the car start.
Billet Bowtie 46 days ago
ActivityRank: 0
Thanks for the update. Fitech is on my wish list. Did you have to do any mods like a spacer to make it work on the stock intake?
Greff7 44 days ago
ActivityRank: 0
I had to put a 1" raised spacer on, the butterflys would hit the stock intake spacer. 

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