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Recent content by iolair

  1. iolair

    DC Fuel Pump Controller

    Yes, when I first posted the question, the BBS appeared to crash, then I wanted to change the fixed 18 v to up to 18 volts, oh well! I was checking out this a week or so ago: http://www.freepatentsonline.com/6556778.html Thus the questions! In any case thanks for the explanation! John
  2. iolair

    DC Fuel Pump Controller

    Isn't there some kind of a controller out there that could fix the voltage at 18v and control DC pump power by increasing or decreasing the current? John
  3. iolair

    DC Fuel Pump Controller

    Ooops, let me reverse the above! Would not the power of a pump running at 18v/8a be the same as 12v/12a, but use less current? Thanks! John
  4. iolair

    DC Fuel Pump Controller

    Would not the power of a pump running at 12v/12a be the same as 18v/8a, but use less current? John
  5. iolair

    DC Fuel Pump Controller

    Could a fixed voltage of 18v be used and then some kind of a control system be used to control pump speed/torque by limiting current? This way 3 pumps could be used without overtaxing the existing wiring, connectors etc? Thanks all! John
  6. iolair

    DC Fuel Pump Controller

    es it is interesting.........I didn't know anything about it and only quoted the paragraphs because I assumed they knew what they were talking about. Grrrrr! Actually this is in regards to a *returnless* fuel system......there is no old style regulator that returns excess fuel to the...
  7. iolair

    DC Fuel Pump Controller

    Hi Operahouse, I once stayed at the Hilton Hanoi Opera hotel, right next door to the operahouse.....same one? [smile] Anyway, 12A was used only as an example......I have no idea what it actually is. I did have a returnless system in mind when I asked the questions.........I was trying to...
  8. iolair

    DC Fuel Pump Controller

    OK....thanks so much Keith! John
  9. iolair

    DC Fuel Pump Controller

    Ok, then at the same load would the power dissipated (heat) in the pump at 12/12 and 18/8 be approximately the same or is there anything else going on here? Thanks Scotty! John
  10. iolair

    Tire Safety

    Decisions, decisions......thank you all very much! [smile] John
  11. iolair

    DC Fuel Pump Controller

    A hypothectical DC fuel pump is rated at 12volts/12amps and of sufficient power to maintain 39psi fuel rail pressure? The same pump is also safe to operate at 18volts. With some kind of a controller (PWM?), could the pump then be run at 18volts/8amps and and still have enough power to maintain...
  12. iolair

    Tire Safety

    Ah, ha...so that may be one very important reason to specify a tire of extra load capacity! Cool! Hmmm.......OTOH, if there is room/no rules for the largest load capacity tire possible......could there be a case of diminishing returns if too large a tire were fitted as it relates to turning...
  13. iolair

    Tire Safety

    Alright....that is interesting.........it also opens up a much larger selection for my GT500 if I choose to ignore the stock OEM tire spec of 1709@44psi (255/45ZR18). Thanks! John
  14. iolair

    Tire Safety

    Hi Norm, I would imagine that the increased front end weight of a SVT Cobra, as opposed to a GT.....DOHC heads, supercharger, intercoolers, pumps, hose assemblies etc. warrants the increased load capacity of the 275/40ZR 18. So bottom line, I assume that you agree with his choice of front...
  15. iolair

    Tire Safety

    Hi Norm, The OEM spec that I quoted is for a 2004 Mustang SVT Cobra. Thanks!
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