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1998 BMW 740iL - Adding a Turbo Charger to "Marilyn" on 1998 BMW 740iL

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Specs indicate this machine will top out at 125. Anyway to easily and inexpensively add Water Cooled Turbo Charger to this machine.
(1) Answer
I think your compression ratio is too high to add additional boost without changing your pistons, Usually turbo charged engines come with special low compression pistons made to withstand the high compression that will result with the turbo charger.