Hey Finum Fit, you sure that VW lowered the compression on its turbodiesels? I have never heard this before.... It would certainly help durability. Arzosah, yes you can turbo ANY diesel engine and it will make more power provided the pump is adjusted to deliver more fuel. The problem is that some engines don't last very long if you do. Old GM 6.2's and 6.9-7.3IDI Fords responded well to aftermarket turbos provided you keep the boost levels fairly low, less than 10-11psi and the EGT's lower than 1100*F. Yes you could turbo your NA motor but durability is the big question. It would be much easier to just swap in a later model turbo motor and know you did it right. MB's have a history of going bang when you turbo an NA motor. RT

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