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Originally Posted by keyser_soze
Thank you for the response. One last question: If the turbo has been taken apart (by anyone); knowing the inducer/exducer (i.e. major/minor diameters) of compressor wheel and turbine wheel should somewhat provide more information (again both depend on A/R as well). Also this must be known already the inlet diameter?
I will search and find out on my own if the EM uses single or dual MAF 
Cheers |
I think it'll be hard for anyone to get any accurate performance data of the turbo by looking at wheel measurments. The turbos are of special material, built by Mitsu for BMW, for high heat resistance. I suspect that unique bit alone will make the turbos perform differently to comparable sized turbos with similar sizings.
Btw, the car runs a T-MAP sensor in the IC pipe upstream of the throttle body. No MAF anywhere
Cheers,
shiv