Turbocharger Compressor-Map Altitude Pressure-Ratio, Surge & Shaft-Choke Plotter

Deterministic SAE J1723 corrected mass-flow m_corr = m_dot * sqrt(T_in/T_ref) / (P_in/P_ref) & total-to-total pressure ratio trajectory vs surge/choke islands engine (.json, .csv, .pdf) built for Garrett Motion, BorgWarner EFR, Precision Turbo, Haltech — zero-upload ephemeral Wasm RAM execution.

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