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Summary of change:
I am planning to change the engine management system on a GM car from 1981. I list the current engine specifications below. Cylinder volume: 6 litre Number of cylinders: 8 Cylinder configuration: V Compression ratio: 8.5:1 Fuel: gas Ignition: GM HEI Fuel system: TPI Number of injectors: 2 Current sensors on the engine: Manifold Air Pressure sensor Manifold Air Temperature sensor Coolant Temperature sensor Throtle Position sensor (potentiometer) ---- I will split this project into a basic step and one or more additional steps. The basic step is to use this engine and replace the existing ecu with VEMS Genboard. Change fuel from gas to E85 (fuel with 85% ethanole). I will probably keep the HEI ignition. Replace the O2 sensor with a WBO2 sensor. Additional steps are: Replace TPI with one injector per cylinder Increase compression ratio Replace HEI ignition with COP (will need new rpm trig) Install some kind of supercharger Water injection ---- The goals of this project is to increase engine power, tourqe and if possible increase fuel economy. I will be happy for any suggestions on which components I should buy. Other suggestions are also welcome. I will create a shoping list as soon as I know more of what I need.
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