Results 1 to 7 of 7

rev limit

This is a discussion on rev limit within the General Help forums, part of the LSx Technical Help Section category; right now my rev limiter is set at 6k rpms because my injectors are hitting 100% duty cycle at this ...

  1. #1
    Member 383ls6's Avatar
    Join Date
    Nov 2009
    Location
    dallas,texas
    Posts
    158

    red
    2002 z/28

    rev limit

    right now my rev limiter is set at 6k rpms because my injectors are hitting 100% duty cycle at this rpm. New injectors are in the works and I was wondering what you guys would say a safe higher rpm would be. how fast are you guys spinning? dragonslayer 4" crank, callies "H" beams,diamond forged pistons,A.F.R 210cc heads with dual valve springs. the rotating assy. has been balanced twice.(once by texas speed again by my machine shop) I'm thinking 7500 rpm.

  2. #2
    Electrical Engineer KMdef9's Avatar
    Join Date
    Jul 2009
    Location
    North of the Motorcity
    Posts
    2,611

    Custom Swirly Black
    2001 WS6 M6

    Quote Originally Posted by 383ls6 View Post
    right now my rev limiter is set at 6k rpms because my injectors are hitting 100% duty cycle at this rpm. New injectors are in the works and I was wondering what you guys would say a safe higher rpm would be. how fast are you guys spinning? dragonslayer 4" crank, callies "H" beams,diamond forged pistons,A.F.R 210cc heads with dual valve springs. the rotating assy. has been balanced twice.(once by texas speed again by my machine shop) I'm thinking 7500 rpm.
    You'll probably get more responses if you posted in the general help section or the internal engine section.

  3. #3
    Electrical Engineer KMdef9's Avatar
    Join Date
    Jul 2009
    Location
    North of the Motorcity
    Posts
    2,611

    Custom Swirly Black
    2001 WS6 M6

    But I think you need to know your HP/ torque curves to know what you should be running the limiter at.

  4. #4
    I don't sell out! blackSS01's Avatar
    Join Date
    Jul 2005
    Location
    Wisconsin
    Posts
    5,558

    Black
    2001 Camaro SS M6

    KM is right, why spin the motor higher if it isnt making power/torque.

  5. #5
    I like turtles GTP231's Avatar
    Join Date
    Aug 2007
    Location
    Corn and Soybean fields
    Posts
    5,397

    Gray/ White
    10 Impreza 83 Thunderturd

    Depends on the peak and what kind of drop it sees after the peak.

  6. #6
    Member 383ls6's Avatar
    Join Date
    Nov 2009
    Location
    dallas,texas
    Posts
    158

    red
    2002 z/28

    i meant that as a max obviously i would stop it when peak hp and tq were met :-) at what rpm do you think i will find the weakest link?
    Last edited by 383ls6; 04-06-2012 at 04:42 AM.

  7. #7
    Electrical Engineer KMdef9's Avatar
    Join Date
    Jul 2009
    Location
    North of the Motorcity
    Posts
    2,611

    Custom Swirly Black
    2001 WS6 M6

    Quote Originally Posted by 383ls6 View Post
    i meant that as a max obviously i would stop it when peak hp and tq were met :-) at what rpm do tyou think i will find the weakest link?
    The only way I know to figure that out is the hard way, which I'm sure you don't want to do. Or if another member happen to find out the hard way.

    Would get your power curves, determine your shift points, and set the limited to ~200rpm higher. Unless, for track purposes, your an m6 and need to run the rest of a gear out instead of shifting because within 100ft (or whatever close distance) of the finish line.
    Last edited by KMdef9; 04-09-2012 at 10:16 AM.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. WHP limit ??
    By 2NDSLPSS in forum Internal Engine
    Replies: 8
    Last Post: 01-12-2012, 04:06 PM
  2. Question: new rev limit
    By mark21742 in forum Computer & Tuning
    Replies: 9
    Last Post: 01-22-2009, 10:00 PM
  3. $50 gas limit
    By JonB in forum Almost Anything Goes
    Replies: 26
    Last Post: 06-22-2008, 07:02 PM
  4. What's the limit
    By Phlash_riot in forum Almost Anything Goes
    Replies: 27
    Last Post: 12-07-2006, 10:40 PM
  5. LT1 and rev limit
    By cnr2b1 in forum Firebird / WS6
    Replies: 2
    Last Post: 04-30-2006, 08:30 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
  •