Bringing TBI and Multi Port Fuel Injection to a New Level.     EFI Conversions and Tuning! Seattle to Portland! E-mail Tuning Consultant!
Results 1 to 3 of 3

Thread: injector offsets, 1993 lt1 vs 1994 lt1

  1. #1
    Fuel Injected!
    Join Date
    Apr 2013
    Location
    West Plains, Missouri
    Posts
    24

    injector offsets, 1993 lt1 vs 1994 lt1

    I'm working on a 95 lt1 swapped into an older 3rd gen, and the guy who owns the car bought a 93 LT1 intake from a corvette complete with injectors. I've installed them but off the bat it would not idle, very lean....I got looking at the injector settings and found some differences, but now its pig rich with these settings..and the offset on the 1993 LT1 calibrations seems HUGE...see attached. I see the same offset settings in tuner pro and CATS tuner. 4.516 ms (4516us) at 12.8 volts seems off.

    If I load up a corvette binary with $DA3 it looks better...just thats not the correct definition for a vette file. 1.770 ms (1770us) that way.

    any one had experience with offset (Inj PW Correction vs Battery Voltage)
    Attached Images Attached Images

  2. #2
    Fuel Injected!
    Join Date
    Feb 2013
    Location
    Euless, TX
    Posts
    1,382
    Quote Originally Posted by busta9876 View Post
    I'm working on a 95 lt1 swapped into an older 3rd gen, and the guy who owns the car bought a 93 LT1 intake from a corvette complete with injectors. I've installed them but off the bat it would not idle, very lean....I got looking at the injector settings and found some differences, but now its pig rich with these settings..and the offset on the 1993 LT1 calibrations seems HUGE...see attached. I see the same offset settings in tuner pro and CATS tuner. 4.516 ms (4516us) at 12.8 volts seems off.

    If I load up a corvette binary with $DA3 it looks better...just thats not the correct definition for a vette file. 1.770 ms (1770us) that way.

    any one had experience with offset (Inj PW Correction vs Battery Voltage)
    I had to use the LT1 F-car offsets to make a 350 TPI with 7730 run with a set of LT1 F-car injectors.

  3. #3
    Fuel Injected!
    Join Date
    Apr 2013
    Location
    West Plains, Missouri
    Posts
    24
    humm....Tunercat shows no difference in the LT1 F-Body 1993 and LT1 Y-Body 1993 using the $DA3 for F-Body and $DA2 for the Y-Body. Tuner PRO DA2 does not list inj pw correction on the tables list....

Similar Threads

  1. Can an 0411 operate a 1993 4L60E?
    By dave w in forum OBDII Tuning
    Replies: 16
    Last Post: 10-06-2016, 11:39 PM
  2. looking for 65# injector offsets
    By PJG1173 in forum GM EFI Systems
    Replies: 13
    Last Post: 01-20-2014, 03:32 PM
  3. correct injector offsets and specs
    By xtreamvette69 in forum GM EFI Systems
    Replies: 13
    Last Post: 08-16-2013, 11:37 PM
  4. 0 280 150 785 injector offsets
    By myredprky in forum GM EFI Systems
    Replies: 0
    Last Post: 06-07-2013, 07:01 AM
  5. 1993 Chevy ton Drag truck
    By 1leg in forum GM EFI Systems
    Replies: 17
    Last Post: 02-25-2012, 01:21 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •