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Thread: MAF tuning S1X cam??

  1. #1
    Advanced Tuner coachcrow56's Avatar
    Join Date
    Dec 2004
    Location
    Longview, Texas
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    305

    Question MAF tuning S1X cam??

    I have read all the post on MAF tuning I could find---several tuners (including ZOOMER) recommend setting idle LTFT's at +15 to +16 for cammed cars. Most of the reasoning is that the cam throws off the readings of the O2 sensor by increasing air flow, which makes sense to me. If this is true----shouldn't the MAF be leaned down throughout the full range??

    (I don't have a wideband)
    2.8/3.0/3.2 Pulley/ZZP CAI/1.6 HS Rockers/Hi Energy Comp Cam 76-802-9/LS7 Lifters/ZZP Stage 2 Intercooler/TOG Headers/Triple Edge Performance Stage 3 Transmission/3.29 Ratio/NGK TR6ix IRIDIUM .40 GAP/ZZP Fuel Rails/ZEX 100 shot NOS/GMPP Sway Bars/KYB Adjustable Struts/Power Stop Performance Pads/Rotors

  2. #2
    Tuner
    Join Date
    Jul 2006
    Location
    Wichita, KS
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    181
    You dont compensate for inacurate O2 readings at idle with ltfts. Check out the other thread on here about the s1x cam and idle a/f ratios.
    98 Corvette Coupe - Texas-Speed 408ci iron block, PRC 237cc heads, Ed Curtis Cam 239-247-115 .624-.624