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  1. Engine timing adjustment!

    Repair & Maintenance
    I'd like to get some input from you folks before I start tuning my engine timing. Questions... What revolutions should it be at when at a standstill? 1200 rpm? My neutral and Drive (standstill) RPMs are about 500 revolutions off from each other. That doesn't seem right so it's one hint that I...
  2. tuning basics

    ECU Tuning
    So i have been reading about tuning an engine, and it almost seems too simple. I was hoping the veteran tuners out there would be able to fill in the blank spots. I have come to understand tuning as this: when the amount of air going into the engine changes, the air to fuel ratios need to be...
  3. Why do my H3 HID Bulbs look like this???? WTF

    Appearance Mods
    Recently ordered these from DDM TUNING Oct 2. Recieved them in the mail today. I looked at the bulbs and notice they were not clear, they are rainbow (the kind of rainbow u see in a oil spill) these bulbs are H3 3000k 35w
  4. PFC log when TVS A/A intercooler is bypassed

    PFC log when TVS A/A intercooler is bypassed

    Check how throttle tip-in curve is similar and on-time with MAF and boost. Moreover, richening has completely disappeared.
  5. PFC log when TVS A/A intercooler is bypassed

    PFC log when TVS A/A intercooler is bypassed

    Check how at sudden throttle tip-ins, VTA, MAF and boost coincide almost perfectly
  6. e-Manage log from MP62 with 2.65" pulley

    e-Manage log from MP62 with 2.65" pulley

    This is a log from a WOT run of a 2ZZ with the following mods (among others): - MP62 supercharger with 2.65" pulley - VisionFunction castings and A/A intercooler - 80mm custom throttle body - Piper stage 2 cams
  7. A/F ratio dip from throttle tip-in with boost readings

    A/F ratio dip from throttle tip-in with boost readings

    This is a screenshot from Apexi PFC DataLogit with sudden throttle tip-ins. Observe the difference between MAF voltage and boost peak
  8. A/F ratio dip from throttle tip-in (edited)

    A/F ratio dip from throttle tip-in (edited)

    This is a typical low-peak of A/F ratio when tipping-in with my setup. Tip-in enrichment is completely turned off. Observe that at tip-in A/F ratio destabilizes approximately for 1 sec and after very smooth depress of the throttle, A/F ratio destabilizes inversely for approximately 1 sec.
  9. A/F ratio dip from throttle tip-in

    A/F ratio dip from throttle tip-in

    This is a typical low-peak of A/F ratio when tipping-in with my setup. Tip-in enrichment is completely turned off...
  10. MAF placement for intercooled supercharged setups

    Forced Induction & Nitrous
    Hi! Since the installation of an A/A intercooler to my supercharged setups (both the MP62 and the TVS R1320), I had some issues with respect to idle and throttle opening rate vs. A/F ratios. To be honest, I had throttle opening rate vs. A/F ratios issues when I also had no intercooler at my...
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