LB7 Duramax injectors are largely throwaway items. Very few people rebuild them, simply because the cost of a new body is less than the effort of rebuilding it. Performance increases are handled by way of the nozzle and needle. Dynomite sets itself apart from the competition via the way it enlarges the nozzle orifices. There are two common methods of creating the microscopic holes needed to inject high-pressure diesel. The first is electro discharge machining (EDM). EDM is a process by which an electrically charged wire burns a hole through metal. The second is Extrude-Honing, during which a small abrasive is used to create or enlarge a hole.
Most factory nozzles are created using the EDM process. However, the companies that build injectors for the OEMs use highly advanced machines…
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8 Lug (Digital) - 1 Issue, January 2018