Results 1 to 2 of 2

Thread: Injector tuning, am I missing something?

  1. #1
    Member
    Join Date
    Jun 2009
    Posts
    82

    Default Injector tuning, am I missing something?

    So I've just been looking over things learning my way around and noticed when looking at my injector flow rate and comparing them to the excel file that is floating around the internet, mine are off from what they should be for 28# injectors.

    The rated psi and my fuel psi are correct in the excel calculator.

    Is there another way the tuner might have changed to compensate for the injectors or is this an oversight that could be contributing to my poor power?
    71 Chevelle, LS1/4l60e, EPS 230/238 113+2, hand ported 799s, ported Fast 90/90, Doug's headers, 3.42 12 bolt

  2. #2
    Lifetime Member 5.7ute's Avatar
    Join Date
    Oct 2006
    Posts
    1,840

    Default

    Quote Originally Posted by thunderstruck507 View Post
    So I've just been looking over things learning my way around and noticed when looking at my injector flow rate and comparing them to the excel file that is floating around the internet, mine are off from what they should be for 28# injectors.

    The rated psi and my fuel psi are correct in the excel calculator.

    Is there another way the tuner might have changed to compensate for the injectors or is this an oversight that could be contributing to my poor power?
    Unfortunately there are many tables that can be hacked to achieve a final AFR value. Especially if the "tuner" is looking for a quick buck with no effort.
    At the same time though I have noticed that factory values can differ quite a bit from that excel spreadsheet. Whether this is done for safety, or long term testing has shown an average value I IDK.
    Your best bet would be to find a copy of the factory tune & see what changes have been made.
    The Tremor at AIR

Similar Threads

  1. injector tuning
    By pullincrazy88 in forum Vortec V6/V8 Specific
    Replies: 5
    Last Post: March 21st, 2009, 05:48 AM
  2. E38 Missing tables? Or I'm missing something?
    By gmtech16450yz in forum E37, E38 & E67 PFI ECM's
    Replies: 5
    Last Post: January 7th, 2009, 02:28 PM
  3. Interesting site on Injector tuning
    By acsf in forum General (Petrol, Gas, Ethanol)
    Replies: 1
    Last Post: October 3rd, 2007, 04:01 AM
  4. Missing parameters in tuning tool?
    By QUICKSILVER2002 in forum General (Petrol, Gas, Ethanol)
    Replies: 6
    Last Post: April 17th, 2006, 02:03 PM

Posting Permissions

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