Results 1 to 7 of 7

Thread: Rev limiter help

  1. #1
    Member
    Join Date
    Feb 2008
    Posts
    63

    Default Rev limiter help

    Im trying to help a buddy out, and I cant for the life of me figure out what, where its cutting fuel at. Its at 6200 rpm it seems. I turned off TM, and it still did it. Any help. Here is a log and the current tune....

    Around frame 250
    Attached Files Attached Files
    '04 ecsb Chevy: 4.8L turbo ,EFILive tuned

  2. #2
    Member
    Join Date
    Feb 2008
    Posts
    63

    Default

    ttt
    '04 ecsb Chevy: 4.8L turbo ,EFILive tuned

  3. #3
    New Member Darkanion's Avatar
    Join Date
    May 2009
    Posts
    3

    Default

    Looking at the tune, it looks to me like the WOT 1>2 shift is set at 6150. That wouldn't cause fueling to be cut, but that would keep it from winding up higher.. The 2>3 shift is set for 6200 RPM, also, a little farther down that screen.

    EDIT : Oh, yeah... I'm talking about D0941 and D0946 for those shift RPM's.
    2007 Sierra Denali - Volant CAI, Dual Exhaust, Tuned

  4. #4
    Senior Member
    Join Date
    Feb 2006
    Posts
    168

    Default

    {B5401} is set at 6300 which is within a nats whisker of the max revs in your log.

    Rgds
    Jim
    2000 LS1 M6, No EGR/Air/PS/CATs. TR230 Cam, COS3, OLSD, LC1 Wideband fitted, Procharger P1SC, 2 Bar MAP, Siemans Dekka 60Lb Injectors.
    All wrapped up in a 2000Lb AC Cobra Replica

  5. #5
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Quote Originally Posted by Happy Jim View Post
    {B5401} is set at 6300 which is within a nats whisker of the max revs in your log.

    Rgds
    Jim
    I'm thinking that also...

    Colton, what car is this...? Didn't you already try B5401 set to 9000...?

  6. #6
    Member
    Join Date
    Feb 2008
    Posts
    63

    Default

    2005 GMC RCSB, 220-220 cam.

    I Think I went back and lowered some of it, I had to send him on his way because I couldnt figure it out that day. So I may have lowere b5401 down a bit to keep him in a safe rev limit zone. In case of some sorta failure etc.


    Edit.... So b 5401. Second gear being set ar 6300 may be giving me problems? Not sure if I played with that table much honsetly.

    Lowered the shift points to send him home. No point to keep it on the rev limiter daily driven.
    '04 ecsb Chevy: 4.8L turbo ,EFILive tuned

  7. #7
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Lowering the shift points is a good thing for now (until we can get this figured out).

Similar Threads

  1. Rev limiter help
    By Badmire68 in forum Gen III V8 Specific
    Replies: 6
    Last Post: January 17th, 2008, 09:53 AM
  2. 97 C5 Rev Limiter ?
    By Kool C5 in forum General (Petrol, Gas, Ethanol)
    Replies: 12
    Last Post: September 11th, 2007, 11:28 AM
  3. rev limiter
    By CWR in forum Vortec V6/V8 Specific
    Replies: 11
    Last Post: July 4th, 2007, 04:40 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
  •