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Compressor efficiency table - a question and a request

Posted: Fri Nov 15, 2024 8:58 am
by jeffx
I would like to correct the compressor efficiency table in my calibration to better match the compressor map for the aftermarket turbocharger that is installed in my car. I have a question and a request.

Can we get some clarification on the units for the flow axis? Since the maximum column value is only 280.0, I'm thinking the values are liters/sec (volumetric flow rate)? At sea level that would equate to about 343g/s which is still on the low side for our purposes (the compressor map on this particular turbocharger extends out to ~450g/s), hence my request below.

As for my request: would it be possible to enable editing of the axis values for this compressor efficiency table? The max flow limit of 280 l/s(?) clips a good portion of the compressor map, and the compressor map for this turbocharger extends to nearly 4.0 pressure ratio so it would be nice to be able to edit the values for both flow and pressure ratio indices.

Re: Compressor efficiency table - a question and a request

Posted: Fri Nov 15, 2024 9:00 am
by FK8_Hoonigan
I am very interested on this as well.

Being the R660 obviously flows much more than the stock Turbo, having the proper scale for this would be fantastic!

Re: Compressor efficiency table - a question and a request

Posted: Fri Nov 15, 2024 1:38 pm
by Hondata
Units are l/s and pressure ratio. You have to understand how this table is used - in internal mathematical models. So it can affect the calculation for compressor discharge temperature only really.