How do you read a turbo compressor map?
How do you read a turbo compressor map?
How To Read A Compressor Map – Turbo Tech
- Pressure Ratio. The pressure ratio along the X-axis represents the boost you intend to run.
- Airflow. The Y-axis represents airflow in pounds per minute.
- Efficiency Island.
- Wheel Efficiency.
- Surge Limit.
- Overspin Choke.
- Compressor Wheel Speed.
How do you read the specs on a turbo?
Using Precision Turbo’s ‘chargers as examples, the numbers represent the diameters of the inducer and exducer on the compressor and turbine wheels (measured in millimeters, from tip to tip of the blades on each wheel). With a 62/66, the first two digits are the compressor wheel size (62mm).
What do you need to know about a compressor map?
A compressor map is a sophisticated graph that tells you just how efficient a supercharger or turbocharger is at creating pressure. The whole reason for these devices is to move extra air into the engine than it would normally consume by employing atmospheric pressure. It’s this simple – pushing more air into the engine will make more power.
What does the compressor map on a BorgWarner mean?
“A compressor map shows mass flow, pressure ratio, speed, and efficiency. It can be thought of as a dyno output/chart for the compressor stage independent of the engine it’s run on” says Seth Temple Applications Engineer for BorgWarner.
What do the islands on a compressor map mean?
The islands created on the compressor map are defined by the compressor’s ability to move air under pressure while adding the least amount of heat to the discharge air. Expressed as a percentage, they show how efficiently a given mass of air (in lbs/min.) is compressed at a given pressure ratio.
How are volume flow rates expressed on a compressor map?
Volume flow rates are typically expressed in cfm. So when reading a map, be sure to check the units on the horizontal axis. The oval-like curves on the map are efficiency islands and they represent the efficiency of the compressor at various locations on the map.
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