.5mm vs 1mm Oversize Pistons

[ngoma]

Originally Posted by DieselScout

Will oversize .5mm or 1mm have any noticeable increase in fuel economy?

Negligible effect from just the oversize. Possible slightly less.
You'll see far more positive effect in both economy and power from the new rings/hone and correct thickness head gasket (higher compression).

Originally Posted by DieselScout

Wouldn't adding a turbo to a D24 NA require the following?
Exhaust manifold, turbo header, , turbo injection pump and injectors, turbo oil pan and oil cooler?

And piston squirters, intake manifold (possibly?), air filter. Might be able to modify the oil pan.

Originally Posted by DieselScout

I've also read that adding a turbo to a D24 block can decrease the life of the engine compared to a D24T block?

Supposedly the block is a different alloy, don't know what difference it makes in real life.