The electronics were engineered and built by Chrysler. A detonation sensor allowed people to use regular gas, with lower performance. Turbocharger bearings were pressure lubricated with oil. The shaft bearing on the exhaust housing side was water-cooled, to reduce hot shutdown bearing failures. The compressor was aluminum, and driven by a turbine wheel in an iron housing with liquid-cooled bearings. When the outlet pressure got too high, the wastegate moved so exhaust gases went directly through the exhaust rather than into the turbine. Initially, Chrysler used a Garrett Research T-3 turbocharger, with an integral wastegate and maximum boost of 7.2 psi the wastegate was controlled mechanically, using the difference between the compressor outlet pressure and the throttle body vacuum.
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