Land Rover Perkins Prima Engine Conversion

TDi and N/A engines have some fundamental differences, mechanical as well as fueling. The major mechanical ones being compression ratio and piston cooling. The injection pump is tuned to suit the type of engine and expected use, so I would expect an engine from a car to be set up with the flexibility required. There are ancillary differences between engines, the most obvious being different water and oil pumps on van engines. Sumps from cars have smaller capacity than vans. TDi engines have a different breather system with two hoses to the sump.