Some friends and I are looking to upgrade a 123w turbo diesel. What should we look into upgrading first? Is there someone who sells after market injection pumps or will we need to have one custom made. Has anyone had luck with some after market turbos? It my under standing that the lower end of the 617's can take a lot more than 124 hp is this true? I would really like to see some of these dodge trucks sucking up some German engineering smoke. Also, whats a good after market diesel motor that fits in a 123w and or 126w?

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84 300sd 2.47 dif 360k
26 mpg needs lots of love
given to me in pitty

89 civic hatchback auto 140k
33mpgs soon to be low to mid 40's
been in the family since mile 1

85 300d with unknown knock. driven over 30k with knock and still going. sold for $800