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  • View Poll Results: Who makes better performing Diesel engines?

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    • Ford

      15 40.54%
    • Hyundai

      22 59.46%
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    Thread: Ford or Hyundai - Who makes better performing Diesel Engines?

    1. #81
      Jai Radhe Maa
       
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      Quote Originally Posted by mannu View Post
      if the plumbing has no leaks there shouldnt be a boost drop
      false. if there is a bottleneck in the system, there will be a boost drop. you measure boost at the intake manifold, so you don't realize it. add a pressure sensor right after the compressor and then at the manifold and tell me if the pressures at both points are the same.

    2. #82

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      that is true 007 sir, what i meant is there won't be a drastic reduction in boost, there will be a reduction in the boost number, but to compensate for that the intercooler is to be added which will cool the air better, resulting into better performance, all this is theoretical again, real life situation will obviously differ.

    3. #83
      Jai Radhe Maa
       
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      Quote Originally Posted by mannu View Post
      but to compensate for that the intercooler is to be added which will cool the air better
      as a price to pay for cooler air, an intercooler will add restriction to the system, *increasing* the pressure differential before and after it, ie. for the same pressure number at the compressor wheel, the pressure number at the manifold will be less. to maintain the old number at the manifold, the turbo will have to pump harder and increase the number at the compressor. this will likely push the turbo out of its zone of efficiency.

      "boost" is a number you measure at the intake manifold. with electronic controllers, the ECU does whatever it takes to achieve that number at the manifold. in reality, you are blind to how hard the compressor is working to achieve that number.

      one should compare the wastegate signal vs boost with and without an intercooler to see what kind of effect it has in the overall scheme of things.

      read this through: Intercooling
      Last edited by 007; 13th Mar 2013 at 09:32.

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