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  1. mudgudgeon

    1HZ vs 1HD-T - Pros and Cons

    Lots of vague terms there Dougal. Define these for us in context of this chat. too much boost Bigger boost High compression A little more ( more than what?) I boosted my 1HZ with 14psi, was contemplating bumping that to about 18psi. I wouldn't go much beyond that on a 1HZ. 14 psi certainly...
  2. mudgudgeon

    1HZ vs 1HD-T - Pros and Cons

    Limiting boost to less than 10psi was probably good advice back when the turbo's commonly being used were mismatched and sourced from petrol engines. If the turbo is running outside its efficient range and heating the intake air too much, then yeah, limiting boost makes some sense. There's no...
  3. mudgudgeon

    1HZ vs 1HD-T - Pros and Cons

    In comparing a 1HZ and 1HD-T, saying one is simple as a plus is kind of pointless. The two engines are 95%+ the same. Simplicity is equal
  4. mudgudgeon

    1HZ vs 1HD-T - Pros and Cons

    Agreed the idea that boost should be less than 10psi is outdated. A well matched turbo and boost compensator, intercooler, exhaust, and correct tune are the important things.
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