C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Upgrading a C3 to FiTech Go EFI

Thread Tools
 
Search this Thread
 
Old 09-18-2017, 04:14 PM
  #1  
Curated Content Editor
CorvetteForum Editor
Thread Starter
 
Curated Content Editor's Avatar
 
Member Since: Aug 2016
Posts: 1,651
Received 915 Likes on 461 Posts
Default Upgrading a C3 to FiTech Go EFI

Upgrading a C3 to FiTech Go EFI
by Joe Coelho

Ditch that antique carburetor and bring your C3 Corvette into the modern age with a ready-to-run EFI setup from the fueling experts at FiTech.

The following users liked this post:
caskiguy (02-26-2018)
Old 09-18-2017, 05:15 PM
  #2  
Sacred Steel
Racer
 
Sacred Steel's Avatar
 
Member Since: Mar 2014
Location: Easton Massachusetts
Posts: 295
Likes: 0
Received 18 Likes on 16 Posts
Default

Nice product but not so good tech support. Can't get through on the phone and asked a question on the FAQ section about three months ago and no reply yet.
Old 09-18-2017, 05:22 PM
  #3  
OldCarBum
Race Director
 
OldCarBum's Avatar
 
Member Since: Mar 2016
Location: Napa California
Posts: 10,442
Received 4,694 Likes on 2,936 Posts
Default

Sorry, but if I wanted a car with computers, I would have bought a new C7.
Old 09-18-2017, 07:32 PM
  #4  
The Punisher
Melting Slicks
 
The Punisher's Avatar
 
Member Since: Oct 2006
Location: hebron IL
Posts: 2,920
Received 167 Likes on 141 Posts
C3 of Year Finalist (appearance mods) 2019

Default

Very interesting. What else would you need for that? Electric fuel pump?
Old 09-18-2017, 07:52 PM
  #5  
F4Gary
Le Mans Master

 
F4Gary's Avatar
 
Member Since: Feb 2001
Location: Grapevine Tx
Posts: 7,981
Received 776 Likes on 469 Posts
2018 C3 of Year Finalist
2016 C3 of the Year Finalist

Default

"With prices STARTING at $800".
Then you have to spend money on fuel delivery and return. Return is a biggie for me as my LT-1 does not have a return line to the tank.
Old 09-18-2017, 10:28 PM
  #6  
60 SHARK
Drifting
 
60 SHARK's Avatar
 
Member Since: Aug 2016
Location: CLEVELAND STUCK IN OHIO
Posts: 1,760
Received 771 Likes on 497 Posts
Default FiTech

I did this to my 75, , I'll try to help anyone through the installation, mine went well, turn key and go! I have posted some of my pics on this forum, also, other brands that work well too.
The following 3 users liked this post by 60 SHARK:
JohnRogers (02-26-2018), Primoz (03-20-2018), The Punisher (09-19-2017)
Old 09-18-2017, 11:24 PM
  #7  
F4Gary
Le Mans Master

 
F4Gary's Avatar
 
Member Since: Feb 2001
Location: Grapevine Tx
Posts: 7,981
Received 776 Likes on 469 Posts
2018 C3 of Year Finalist
2016 C3 of the Year Finalist

Default

Originally Posted by 60 SHARK
I did this to my 75, , I'll try to help anyone through the installation, mine went well, turn key and go! I have posted some of my pics on this forum, also, other brands that work well too.
How much did it cost you?
Old 09-19-2017, 01:22 AM
  #8  
Nexxussian
Instructor
 
Nexxussian's Avatar
 
Member Since: Sep 2017
Location: Alaska
Posts: 209
Received 24 Likes on 18 Posts
Default

Not the same brand, but I put an Atomic TBI on an Off Topic car (1931 Model A Ford W/ a cammed up V8 ).

I chose Atomic as it didn't need a return line.

I've been running it as long as they've been available, it makes more power than any of the carbs I've had on it (Atomic has a 900 + CFM Throttle Body) and picked up 2-3 MPG, throatier sound too (both out the intake and the exhaust).

I haven't tried FI Tech on anything, yet, but have had good luck in the past with Atomic, FAST, and SDS.

While I haven't put an Edelbrock on, a friend did, I was unable to give him any help with it (he took it back off).

Of the ​​​​​​ones I've tried, the Atomic was the easiest to install.

I look forward to trying FI Tech, but don't have an induction vacancy at the moment.
Old 09-19-2017, 03:30 AM
  #9  
stingraymax
Racer
 
stingraymax's Avatar
 
Member Since: Aug 2003
Location: Belgium /
Posts: 438
Received 12 Likes on 10 Posts

Default

What did you use as fuel lines and return ? I have the same on a shelf ready to put on my '75 but from what I read I will have to pull a new fuel 3/8 return line.

I have an aeromotive in tank fuel pump that I will put in my tank.
Old 09-19-2017, 03:55 AM
  #10  
Sacred Steel
Racer
 
Sacred Steel's Avatar
 
Member Since: Mar 2014
Location: Easton Massachusetts
Posts: 295
Likes: 0
Received 18 Likes on 16 Posts
Default

Originally Posted by Maymyvettelive4ever
The Fuel Command Centre is a piece of ****.
I've had absolutely zero problems with mine so how about telling us why you think it's a POS.
Old 09-19-2017, 06:47 AM
  #11  
60 SHARK
Drifting
 
60 SHARK's Avatar
 
Member Since: Aug 2016
Location: CLEVELAND STUCK IN OHIO
Posts: 1,760
Received 771 Likes on 497 Posts
Default

I have $1.200.00 invested in conversion,, i used Earls vapor guard fuel line and AN fittings,, Walbro in tank pump, Holley Hydra mat was my most costly part of fuel system, but no need to baffle fuel tank to prevent fuel starvation, I used original supply line as my new return line,,,

Last edited by 60 SHARK; 09-19-2017 at 06:51 AM. Reason: Additional information
Old 09-19-2017, 01:30 PM
  #12  
bdhulderman
Racer
 
bdhulderman's Avatar
 
Member Since: Mar 2008
Location: Tucson AZ
Posts: 448
Received 18 Likes on 16 Posts

Default

I put the Fitech EFI on my wife's '71 and is running great now, but had some issues getting it going, because the initial settings didn't let it start. I got so frustrated that I got kicked off the Fitech Facebook tech page, but through trial and error, did finally get it running well.





Old 09-19-2017, 03:45 PM
  #13  
Gordonm
Race Director
 
Gordonm's Avatar
 
Member Since: Dec 1999
Location: Forked River NJ
Posts: 19,592
Received 754 Likes on 464 Posts

Default

[QUOTE=bdhulderman;1595599013]I put the Fitech EFI on my wife's '71 and is running great now, but had some issues getting it going, because the initial settings didn't let it start. I got so frustrated that I got kicked off the Fitech Facebook tech page, but through trial and error, did finally get it running well.





Not being picky here but did you check to see if you are getting WOT. The travel from what it looks like in your picture is very short and would not give you WOT. I just installed one of these on a forum members 69 and could not get full travel no matter what I tried. I finally got the Lokar throttle cable and was able to get full travel. You could be losing power!!

Pull the air cleaner and while the car is off just have your wife step on the pedal all the way. Peer into the throttle body and make sure the plates are totally vertical.
Old 09-19-2017, 08:13 PM
  #14  
F4Gary
Le Mans Master

 
F4Gary's Avatar
 
Member Since: Feb 2001
Location: Grapevine Tx
Posts: 7,981
Received 776 Likes on 469 Posts
2018 C3 of Year Finalist
2016 C3 of the Year Finalist

Default

We would all probably have these on our cars if they didn't cost so much.
Old 09-19-2017, 10:59 PM
  #15  
Metalhead140
Drifting
 
Metalhead140's Avatar
 
Member Since: Aug 2015
Location: NSW, Australia
Posts: 1,939
Received 472 Likes on 344 Posts
C3 of Year Finalist (track prepared) 2019
Default

Originally Posted by Maymyvettelive4ever
The Fuel Command Centre is a piece of ****.
Originally Posted by Sacred Steel
I've had absolutely zero problems with mine so how about telling us why you think it's a POS.
They had some dramas with the FCCs early on, but mine works perfect too.

I've been extremely happy with my Fitech, runs very well and goes hard, returns better economy than I ever achieved with the stock carb, despite changing out the stock engine for a pretty healthy 383 at the same time. The most impressive thing is how nice it runs and pulls at low revs and/or low load, given it's on an engine with enough cam to pull past 7,000rpm.
Old 09-19-2017, 10:59 PM
  #16  
bdhulderman
Racer
 
bdhulderman's Avatar
 
Member Since: Mar 2008
Location: Tucson AZ
Posts: 448
Received 18 Likes on 16 Posts

Default

[QUOTE=Gordonm;1595600004]
Originally Posted by bdhulderman
I put the Fitech EFI on my wife's '71 and is running great now, but had some issues getting it going, because the initial settings didn't let it start. I got so frustrated that I got kicked off the Fitech Facebook tech page, but through trial and error, did finally get it running well.





Not being picky here but did you check to see if you are getting WOT. The travel from what it looks like in your picture is very short and would not give you WOT. I just installed one of these on a forum members 69 and could not get full travel no matter what I tried. I finally got the Lokar throttle cable and was able to get full travel. You could be losing power!!

Pull the air cleaner and while the car is off just have your wife step on the pedal all the way. Peer into the throttle body and make sure the plates are totally vertical.
Yes, I verified once already that the throttle body is what's stopping the pedal motion, and not the linkage. Thanks anyway.
Old 09-20-2017, 11:09 AM
  #17  
imariver
Drifting
 
imariver's Avatar
 
Member Since: Jul 2008
Location: Sonora CA
Posts: 1,873
Received 25 Likes on 19 Posts

Default

I have sidepipes on my car, Where would the o2 sensor go?? Any pics of an o2 sensor in a sidepipe system?
Thanks

Get notified of new replies

To Upgrading a C3 to FiTech Go EFI

Old 09-20-2017, 11:26 AM
  #18  
bdhulderman
Racer
 
bdhulderman's Avatar
 
Member Since: Mar 2008
Location: Tucson AZ
Posts: 448
Received 18 Likes on 16 Posts

Default

Originally Posted by imariver
I have sidepipes on my car, Where would the o2 sensor go?? Any pics of an o2 sensor in a sidepipe system?
Thanks
They say to put the 02 sensor in the rear tube away from a corner, so I put hers on the top rear center of straight portion of header. Just make sure there's enough clearance by turning the wheel.

Last edited by bdhulderman; 09-20-2017 at 02:29 PM.
The following users liked this post:
Nexxussian (09-20-2017)
Old 09-20-2017, 12:55 PM
  #19  
Nexxussian
Instructor
 
Nexxussian's Avatar
 
Member Since: Sep 2017
Location: Alaska
Posts: 209
Received 24 Likes on 18 Posts
Default

Originally Posted by bdhulderman
They say to put the 02 sensor in the rear tube away from a corner, so I put hers on the bottom rear center of straight portion of header. Just make sure there's enough clearance by turning the wheel.
Just out of curiosity were you able to get the O2 sensor in that position with the sensor end pointed down or horizontal?



For whatever it's worth, to get a sensor in, on another forum I'm on a fellah put his sensor in by the cylinder head, on a set of zoomies he'd built.

They had a glass pack style insert in each pipe, and were screwed to a supercharged classic hemi with a FAST TBI system.

It worked for him, not ideal but once you've gone that far from a "normal" setup you do what you can.

Being new here, I'm not sure what the etiquette is on posting a link to another site (if anyone wants the thread location for now, PM me).
Old 09-20-2017, 02:24 PM
  #20  
bdhulderman
Racer
 
bdhulderman's Avatar
 
Member Since: Mar 2008
Location: Tucson AZ
Posts: 448
Received 18 Likes on 16 Posts

Default

Originally Posted by Nexxussian
Just out of curiosity were you able to get the O2 sensor in that position with the sensor end pointed down or horizontal?



For whatever it's worth, to get a sensor in, on another forum I'm on a fellah put his sensor in by the cylinder head, on a set of zoomies he'd built.

They had a glass pack style insert in each pipe, and were screwed to a supercharged classic hemi with a FAST TBI system.

It worked for him, not ideal but once you've gone that far from a "normal" setup you do what you can.

Being new here, I'm not sure what the etiquette is on posting a link to another site (if anyone wants the thread location for now, PM me).
I was able to point the sensor 45 deg down, i.e. with the wire pointed up. You definitely don't want to drill the hole on the bottom or you will get moisture in the sensor and ruin it.

Last edited by bdhulderman; 09-20-2017 at 02:27 PM.


Quick Reply: Upgrading a C3 to FiTech Go EFI



All times are GMT -4. The time now is 06:51 PM.