Ok I´ve been thinking about something here, how the f*** can you turbo a diesel? I know how diesels work, you don´t have a spark plug, the fuel and air ignite at TDC without a spark. so how can you put more air/fuel in there without pinging? unless you have to retard the timing on the cams? I still don´t see how it´s done. someone hit me back with any possible explanation, or a website that would help me out. Thanks.