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  • Users: Retracnic
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  1. Retracnic

    OEM Initial engine break-in procedure.

    Greetings, I would like to know the initial engine break-in procedure used by major automobile manufacturers or their suppliers. I am intimately aware of the procedures employed by race and performance engine builders. What I am looking for is what do the big guys (Toyota, GM, Honda etc) do to...
  2. Retracnic

    Returning to the Moon...

    As I'm sure you are already aware, the Bush administration has tasked NASA with returning men to the Moon. Proposed future Lunar exploration is to commence sometime between 2015 and 2020. My question is do you think NASA will use "off the shelf" technology or push the limits with...
  3. Retracnic

    Non-cylindrical pistons?

    Does anybody know of any experimentation into using non-circular pistons and bores? For over a century engine designers have relied heavily on the standard cylindrical piston/bore combination. I do know some makers have had experimented briefly with oval pistons (notably Honda's NR engine) but...
  4. Retracnic

    Pros and Cons of low-profile tires?

    A colleague and I were debating large diameter rim/low profile tire combinations. I made the statement that the only reason for large diameter rims was to provide sufficient clearances for larger brake components. And that low profile tires were a necessary evil to accomplish this. He...
  5. Retracnic

    Anti-lag and ignition timing

    Over the past few weeks I’ve been developing an anti-lag (or bang-bang if you prefer) system. This is my first attempt at such, so bare with me if you will. The system consists of a stepper motor used to adjust throttle position, a bank of secondary injectors, the ECU and 2 driver selectable...

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