01-21-2008, 07:33 PM | #1 |
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Measurement
How can you tell how many mm a turbo is?And how much boost its capable of?Just curious
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01-21-2008, 07:54 PM | #2 |
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1)The size in mm is a generic measurementof the turbo...it's the diameter of the inlet of the compressor wheel; the tip-to-tip measurement of the blades. However, other parts of the turbo determine it's application just as much as the size of the compressor wheel. For instance, a "66mm" turbo found on a diesel will not do so well on a gas-motor and vice-versa.
2)Several factors determine the boost a turbo can make. A good place to start is something called a compressor-map. It is a fluid-mechanical diagram of the compressors ability to flow air...ultimately making horsepower.
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01-22-2008, 04:58 AM | #3 |
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The entire wheel or just the blades visible at the inlet?
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01-22-2008, 07:56 AM | #4 |
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Inlet only. The overall diameter is not a common measurement, but it is used to calculate the "trim" of the compressor.
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01-22-2008, 08:27 PM | #5 |
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You measure the inducer and exducer to get the area to radius, The turbine A/R tells about when it will spool and the compressor A/R will tell how much air it will move. Identify the turbo then find its compressor map, This will tell you everything you want to know.
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01-22-2008, 10:02 PM | #6 | ||
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Quote:
Quote:
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01-25-2008, 07:13 PM | #7 |
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This is a garret turbo it says A/R 76 on the intake housing.It is 3inches from tip of blade to tip on the front.So what size is this turbo?
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01-25-2008, 08:03 PM | #8 |
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Post up a pic of the monster.
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01-25-2008, 08:21 PM | #9 |
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Sorry, I was thinking A/R but inducer/exducer gives trim.
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01-26-2008, 10:31 AM | #10 |
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That particular model number sounds familiar!
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