Has any one striped a ej20 quad cam n/a down to see if it has the same internals as the ej20T ?

same motor one has turbo one has not

possable to turbo the n/a by fitting a rs inlet ect on ?

:beer

The compression would have to be different. The RS motor 8.5:1 from memory VS the NA motor 10:1. I think the turbo motor also has oil sprayers pointing on to the back of the pistons but you'd have to confirm that.

Different cams, different injectors and as Pete said, compression ratio different.

yep, oil squirters on the turbo models arent present on the NA