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  1. #1
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    Comparing HKS blowers/superchargers for the S65 V8 - GTS8550, GTS8555, GTS7040, GTS4015

    Ran into this chart and thought you guys might find it interesting:

    MODEL MAX IMPELLER
    SPEED
    MAX PRESSURE
    RATIO
    MAX
    FLOW
    POWER
    RANGE
    DRIVE UNIT
    RATIO
    UNIT
    WEIGHT
    rpm - m3/min ps - kg
    GTS4015HP 110,000 2.6 8.1 100-150 9.875 3.5
    GTS7040 110,000 2.5 22 200-400 9.444 4.2
    GTS8550 110,000 2.6 26 250-500 9.368 5.3
    GTS8555 110,000 2.6 28 300-550 9.368 5.3

  2. #2
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    Need to convert some of these units.

  3. #3
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    GTS8555 compressor map:

    Click here to enlarge

    GTS8550 compressor map:

    Click here to enlarge

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    Interesting indeed. I should probably look up how to properly read compressor maps, hehe.
    2002 E46 M3 6MT | Jet Black . Black Nappa | My GermanBoost Build Thread
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    Click here to enlarge Originally Posted by flipm3 Click here to enlarge
    Interesting indeed. I should probably look up how to properly read compressor maps, hehe.
    Ya me too, still waiting on a good compressor map article here.

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    If I had some time I would explain some of it.

    Anyway, these compressor maps need the conditions under which they were tested. Can you contact HKS and ask them?

  7. #7
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    Click here to enlarge Originally Posted by evolve Click here to enlarge
    Can you contact HKS and ask them?
    Sure but why wouldn't they include that with the maps?

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