Results 1 to 6 of 6

Thread: High/Low Spark Map

  1. #1
    Senior Member
    Join Date
    Jul 2005
    Posts
    164

    Default High/Low Spark Map

    Just looking at G5x3 tune I downloaded some time ago. The Low octane table is somewhat higher than the High octane table. What's the purpose here?
    Y2K C5, M6, LS6 intake, Kooks LT headers, High flow cats, 216/224 113 LSA, 5.3 Stage II heads. STS twins. COS

  2. #2
    Junior Member
    Join Date
    Jun 2006
    Posts
    27

    Default

    they probably only made changes to the high octane table and left the low octane table stock.
    2001 Arctic White Pontiac Firebird Formula M6
    LME 408, AFR small bore 225s, TSP 248/254 .622/.612 114+2 cam, FAST 90mm intake/NW 90mm TB, TR 1 3/4" headers, SLP Dual/Dual catback, Spec 3i clutch, 3.73 Motive Gears, EFILive Custom OS 5

  3. #3
    Senior Member
    Join Date
    Jul 2005
    Posts
    164

    Default

    No, they actually advanced Low octane as much as 10 deg over stock in some parts of the table and a few degrees advanced past High octane. Seems to have been done on purpose.
    Y2K C5, M6, LS6 intake, Kooks LT headers, High flow cats, 216/224 113 LSA, 5.3 Stage II heads. STS twins. COS

  4. #4
    Lifetime Member johnv's Avatar
    Join Date
    Jan 2005
    Posts
    338

    Default

    Quote Originally Posted by purrvert
    No, they actually advanced Low octane as much as 10 deg over stock in some parts of the table and a few degrees advanced past High octane. Seems to have been done on purpose.
    Could be running mafless without custom op sys , so would look up low octane table only .

  5. #5
    Senior Member
    Join Date
    Jul 2005
    Posts
    164

    Default

    Running with MAF, OS 12221588. Here's the tune.
    Attached Files Attached Files
    Y2K C5, M6, LS6 intake, Kooks LT headers, High flow cats, 216/224 113 LSA, 5.3 Stage II heads. STS twins. COS

  6. #6
    EFILive Crew Site Admin Tordne's Avatar
    Join Date
    Oct 2004
    Posts
    3,870

    Default

    Strangely the professional tune I paid for (some years ago now) was the same, low octane tale higher than high octane. But, I think as in my case it has to be a cock up!
    Andrew
    EFILive Crew


Similar Threads

  1. Spark High Octane table
    By SHOGOR in forum Gen III V8 Specific
    Replies: 0
    Last Post: July 19th, 2008, 02:53 AM
  2. Low-High Spark tables...
    By LS1_Dragster in forum Gen III V8 Specific
    Replies: 7
    Last Post: June 27th, 2008, 03:30 AM
  3. Help my spark advance is too high
    By Big Block in forum Custom Operating Systems
    Replies: 6
    Last Post: April 25th, 2008, 04:48 PM
  4. high/low octane spark tables.
    By s10mods in forum Gen III V8 Specific
    Replies: 4
    Last Post: December 23rd, 2007, 12:44 PM
  5. Base Spark and Spark Modifiers
    By lplott in forum General (Petrol, Gas, Ethanol)
    Replies: 0
    Last Post: May 11th, 2007, 04:33 AM

Posting Permissions

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