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  • Users: Andy330hp
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  1. Andy330hp

    water injection to gas engines

    A couple of questions: Why is the simulation performed at atmospheric pressure as opposed to some elecated pressure? What effect would that have on it's results? Just how optimistic is 100% vaporization? This thread makes it sound quite unlikely, yet that link is highly dependant on that.
  2. Andy330hp

    Super short runners for high boost?

    30% certainly sounds "optimistic" to me. I can't help but wonder if there is some problem with the simulation software near special cases. What happens if you enter a runner length of zero, or near zero (0.001 if zero is not allowable)? Have you wandered around a racetrack and...
  3. Andy330hp

    Cam profiling engine

    what????
  4. Andy330hp

    Super short runners for high boost?

    Some questions: Turbo or Super? RPM range? Application? (race, street, both?)
  5. Andy330hp

    bypassing GM TBI injector pulse from distributor

    What are you trying to accomplish? Explain the situation
  6. Andy330hp

    "Proper" intake air temp (IAT) sensor location....

    Perhaps I should simplify my position The drastic overfueling experienced by Brandnew is almost certainly not the sole result of IAT sensor position On modern OEM ECU's, it is hard to say with certainty (unless one of you here actually helped develop it) that we are aware of ALL the parts of...
  7. Andy330hp

    "Proper" intake air temp (IAT) sensor location....

    Actually, maybe cold start will be the least of his worries As stated above, IAT, while it does affect fueling somewhat, on a MAF system it does not affect fueling nearly as much as it does advance. So, he will have to tell the ECU that it's WAY hotter to get just a little fuel out, and in the...
  8. Andy330hp

    "Proper" intake air temp (IAT) sensor location....

    Yeah, then you could buy a tornado for your intake and a display that shows "A/F" based on only your narrowband EGO :) Keep in mind that something such as suggested above should not be viewed as "permanent". MAking your ECU think it's cold starting will also alter your spark...
  9. Andy330hp

    wrist pin offset

    You reduced BSFC by 0.10??? or 0.01?
  10. Andy330hp

    "Proper" intake air temp (IAT) sensor location....

    you're welcome
  11. Andy330hp

    "Proper" intake air temp (IAT) sensor location....

    Don't most MAF sensors have built-in air temperature sensors? On a true MAF system, my understanding is that it will always measure the correct mass flow rate, so IAT sensors do not do much for fueling compensation of "denser charges". What they tell you is that, when the intake is...
  12. Andy330hp

    Superheated steam driven turbo

    I don't think I'd be too hot on the idea of stapping my oxy-acetylene (or oxy-propane in this case) torch in the trunk of my car and trying to drive off of it, but to each his own. :) I think you still run into a problem, much as you did with the CO2, of maintaining the flow rate of oxygen. If...
  13. Andy330hp

    Electronic transmission control

    I'm not sure I should be doing too much more advertising on this site :) you can email me at aallen@injectionlogic.com We make our own ECU, comparable to the Holley Commander 950 in capability I would say (they've got a few things we don't, and we've got a few things they don't). I think our...
  14. Andy330hp

    Electronic transmission control

    I work for a fuel injection company, we develop our own ECU, so we are well aware of the manufacturing and development time. It would eventually be a released product similar to the link provided (stand-alone trans control), as well as built into our current ECU. However, our target price was...
  15. Andy330hp

    Connecting rod shape

    Picture doesn't display, is there a link?
  16. Andy330hp

    internal tank pump

    I agree with the above, everything in the system, not just the pump, needs to be okay for use with alcohol. That being said, try to find a flex fuel vehicle to increase your chances of getting parts that are alcohol compatible.
  17. Andy330hp

    Calculating WORK done by a turbine (CO2 powered turbo)

    Perhaps he was trying to express the equation W = (integral) p*dV for equation 1?
  18. Andy330hp

    Turning vanes in intake ports on cyl head?

    There have been ports in the past that tried to accomplish similar effects, and tulip valves also are designed to help direct the airflow in an orderly manner. I hate to be the eternal skeptic, but my guess is that a universal-fit contraption such as this would probably be more of an...
  19. Andy330hp

    Intercooling turbo compressor directly to boost flow

    So to tie this in with a few other threads, as I am getting a little confused: If somebody was going to setup a turbo system, and space constraints prevented the use of an intercooler, would it be better to use water injection before or after the compressor? Does this answer change if methanol...
  20. Andy330hp

    firing order engineering.....

    GM numbers odd on one bank, and even on the other, whereas ford goes 1-4 and 5-8 I believe

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