Results 1 to 6 of 6

Thread: Stage 1 Typical A/F Ratios?

  1. #1
    Newbie SRTSuch's Avatar
    Join Date
    Sep 2005
    Location
    Central Jersey
    Posts
    99

    Stage 1 Typical A/F Ratios?

    Could anyone tell me what my wideband should be reading if connected corectly? I have stage 1 + bolt ons... intake, WGA, EBC, hard pipes, FMIC, exhaust and no fuel mods and I start reading 10.2 and end all the way up to 12.1 by 6k RPM - I always thought I should be reading around 9.8 throughout most of the RPM range, but maybe i'm wrong... or maybe it's my sub-par ability to ground wires? :woot:

    Any help would be appreciated

  2. #2
    Jr. Member SuperMario's Avatar
    Join Date
    Sep 2005
    Location
    Central Jersey
    Posts
    3,823
    Quote Originally Posted by SRTSuch View Post
    Could anyone tell me what my wideband should be reading if connected corectly? I have stage 1 + bolt ons... intake, WGA, EBC, hard pipes, FMIC, exhaust and no fuel mods and I start reading 10.2 and end all the way up to 12.1 by 6k RPM - I always thought I should be reading around 9.8 throughout most of the RPM range, but maybe i'm wrong... or maybe it's my sub-par ability to ground wires? :woot:
    Any help would be appreciated
    Stoich is 14.7 and thats what the PCM tries to keep the car at. At the top of the rpm's you should be NO higher the 11.7 as that is optimal. 12 is a bit too lean unless your running alky / meth... You can do damage if your in the 12's or above.

    Running too rich can also cause damage as well. 9.8 is Really rich, and your losing HP that way.

  3. #3
    Jr. Poster jjo's Avatar
    Join Date
    Nov 2005
    Location
    Toronto, Ontario
    Posts
    150
    What are u boostin at WOT/redline...?
    If u are over 12 AFR's then do turn it down a notch....:readclose
    Last edited by jjo; 08-30-08 at 08:01 PM.

  4. #4
    Newbie SRTSuch's Avatar
    Join Date
    Sep 2005
    Location
    Central Jersey
    Posts
    99
    boost at redline i think is your typical 15 lbs - i gotta check my e-01, but i haven't hooked up an emanage to it yet so im just wondering if my values are on target so i can take the next step and install my emanage thats been collecting dust for the longest time in my room

  5. #5
    Newbie SRTSuch's Avatar
    Join Date
    Sep 2005
    Location
    Central Jersey
    Posts
    99
    Quote Originally Posted by SRTSuch View Post
    boost at redline i think is your typical 15 lbs - i gotta check my e-01, but i haven't hooked up an emanage to it yet so im just wondering if my values are on target so i can take the next step and install my emanage thats been collecting dust for the longest time in my room
    UPDATE: Figured out it was my grounding - I separated the heater ground wire from the other 3 grounds and it's working great now.. 9.8-10.0 A/F from 3k to about 4.5k RPM then starts to go up to about 10.7 by 5800rpm (this is at 19.5psi to 16 redline... A/F curve stayed flat pretty much when I had it at an 18 spike & 15 hold)

    emanage going on tomorrow :yay:

  6. #6
    Member boostedneon04's Avatar
    Join Date
    Sep 2005
    Location
    Long Island
    Posts
    4,334
    Quote Originally Posted by SRTSuch View Post
    UPDATE: Figured out it was my grounding - I separated the heater ground wire from the other 3 grounds and it's working great now.. 9.8-10.0 A/F from 3k to about 4.5k RPM then starts to go up to about 10.7 by 5800rpm (this is at 19.5psi to 16 redline... A/F curve stayed flat pretty much when I had it at an 18 spike & 15 hold)
    emanage going on tomorrow :yay:
    tune it to 11.4 across and call it a day

Thread Information

Users Browsing this Thread

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

Members who have read this thread : 0

You do not have permission to view the list of names.

Posting Permissions

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