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How much power am i losing?

Discussion in 'Performance and Tuning' started by BiggWooD, Oct 28, 2009.

  1. Oct 28, 2009 at 7:37 PM
    #1
    BiggWooD

    BiggWooD [OP] Well-Known Member

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    Opp, Alabama
    Vehicle:
    Tacoma
    Pro Comp Leveling Kit 17" RBP Wheels 33x12.50 Wild Country RVTs
    I have a cold air intake and a cat back exhaust on my truck... My reading on the LM-2 meter is saying around 14.8-15.2 idling and cruising.. I am not familier with trucks.. I race fourwheelers for CMRacing and i know that 14.8-15.0 is lean and not good for any motor.. I cant get my POS computer and LM-2 to work together for nothing so i can tune my URD MAF Cali. so im waiting on my laptop.. Im just wondering how much harm i am doing to my motor and how much power should i expect when i get it tuned to around 13.2-13.4ish
     
  2. Oct 28, 2009 at 7:47 PM
    #2
    lilgerber

    lilgerber Well-Known Member

    Joined:
    Nov 23, 2008
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    fresno ca
    Vehicle:
    06 4x4 speedway blue
    flowmaster40,vloant intake,king coilovers,TC UCA's,3inch lift,billet grill,chrome handles,stero system.motometals 951 285/17/70
    i wish i knew what i was at .
     
  3. Oct 28, 2009 at 7:51 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    They are gonna be on the lean side when cruising, and at idle. Emissions rules the engineers. Whats the WOT AFR?
     
  4. Oct 28, 2009 at 8:56 PM
    #4
    roxspin72

    roxspin72 Enjoying my addiction

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    Oh Yeah!!!
    Normal or optimal for the 1GR at idle is about 14.6 AFR. WOT is dependent on your set up, 12.5 seems to be the suggested standard @ WOT for N/A...
     
  5. Nov 1, 2009 at 10:22 AM
    #5
    xsvtoyz

    xsvtoyz Well-Known Member

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    AL
    Oklahoma
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    03 Pre-Runner Inprogress
    HID (ACA)/ Web cams/ Header/Full Custom exhaust/ K&N FIPK II/SuperCharger
    bingo! exactly like he said at cruise or idle you need little power so AFR will be 14.6 or so ... at high demand it should be 11.5 to 12.5
     
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