Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: COS 5 Nitrous retard for Anti-Lag

  1. #1
    Member
    Join Date
    Aug 2011
    Posts
    59

    Default COS 5 Nitrous retard for Anti-Lag

    Can the nitrous retard be used to help spool, by retard the timing while on a 2-step and t-brake? is there a max timing that can be pulled? min or max rpm engagement?

  2. #2
    Member
    Join Date
    Aug 2011
    Posts
    59

    Default

    bump

  3. #3
    Lifetime Member
    Join Date
    Jul 2003
    Posts
    1,762

    Default

    I was thinking about this. Wondering if the 2step can be integrated to the N2O controls...

    Thanks
    "All that is needed for the triumph of evil is that good men do nothing..."

  4. #4
    Member
    Join Date
    Aug 2011
    Posts
    59

    Default

    anyone? joecar?

  5. #5
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    27,775

    Default

    IDK...

    the usual manner of COS5 usage is to modify fuel/timing when nitrous activates.

  6. #6
    Member
    Join Date
    Feb 2008
    Posts
    87

    Default

    Quote Originally Posted by cyipher View Post
    Can the nitrous retard be used to help spool, by retard the timing while on a 2-step and t-brake? is there a max timing that can be pulled? min or max rpm engagement?

    I don't see why it couldn't. Hell you'll even be able to fine tune the fueling as well, which isn't possible with the MSD/Lingenfelter boxes. You could pull over 25 degrees, but you'd only need 10-14 on a typical build, imo. If you have the time why not give it a try?
    LQ4, Pro-Flo, heads, Stock48 cam'd, twin TO4E 2001 C5 830rwhp/905rwtq
    2001 GMC RCSB pt88/5.3/4l80e/14 bolt 11.34@123.2 best pass so far with a 1,82 60' @ 13lbs boost

  7. #7
    Member
    Join Date
    Aug 2011
    Posts
    59

    Default

    i dont have a 2 step yet, have heard the lingenfelter boxes have issues and msd doesnt do retard, which i wanted to make sure my idea would work before i drop 220 dollars on a msd unit.

  8. #8
    Member
    Join Date
    Aug 2011
    Posts
    59

    Default

    Well I bought the msd unit and tried to use this on cos3 using the iat table to retard timing, while this did work it looks like it takes about a half seond for the ecu to see the iat temp change causing a bog when i let off the 2 step due to only having 5 degrees of timing. Does COS5's timing features pull timing faster then this?

  9. #9
    Lifetime Member johnv's Avatar
    Join Date
    Jan 2005
    Posts
    338

    Default

    Yes the nitrous timing retard should be intsant.
    Back yard boost
    347+ T76 = 770 rwhp 10.96 @ 135 mph

  10. #10
    Senior Member
    Join Date
    Jun 2007
    Posts
    133

    Default

    Quote Originally Posted by cyipher View Post
    Well I bought the msd unit and tried to use this on cos3 using the iat table to retard timing, while this did work it looks like it takes about a half seond for the ecu to see the iat temp change causing a bog when i let off the 2 step due to only having 5 degrees of timing. Does COS5's timing features pull timing faster then this?
    perhaps it is the sensor itself which is slow not the ecu. I've heard of people wiring up a toggle switch that alters the iat signal instantly, can't recall if one of the circuits had a resistor inline.
    9.8@150 . LQ4 Turbonetics Billet 7575@18psi, 6 speed, non-intercooled with meth. Speed Density, open loop, no PE.

Page 1 of 2 12 LastLast

Similar Threads

  1. Nitrous COS for 2006 E40?
    By KAZ MotorSports in forum Gen IV V8 Specific
    Replies: 9
    Last Post: May 23rd, 2008, 02:51 PM
  2. Nitrous timing retard
    By PRAY in forum Gen III V8 Specific
    Replies: 3
    Last Post: December 12th, 2007, 05:49 AM
  3. Scan Tool lag issue!! Help!!
    By 2002_z28_six_speed in forum General
    Replies: 9
    Last Post: September 1st, 2007, 09:27 AM
  4. nitrous spark retard
    By maxxxboost in forum Tips and tricks
    Replies: 2
    Last Post: May 11th, 2006, 05:06 AM
  5. PE mode lag
    By Draco in forum General (Petrol, Gas, Ethanol)
    Replies: 2
    Last Post: April 12th, 2006, 10:21 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
  •