GO THE CG13! I definitely want to have a play around with one of these motors one day.
D do you have any website to look at showing some examples of these big hp motor cg's?

http://www.micra.com.au/community/forced-micras.php
143.7kw@wheels with a 600kg B10 should be a tad violent

This is to keep it all lightweight Nissan and under 2ltr class which you have to consider 1275cc goes over the calculation.
Therefore crank definitely needs machining anyway to fit e15et
rods and forged pistons for safety under high boost.

If capacity is not an issue then for size and weight you would have to consider the HR15DE
which recently went on ebay for 600au on a front cut.
Tiidas are crashed every couple of weeks and the HR16DE are available.
The good thing is they are as small as the sandcast cg13 because these newer engines are pressure diecast alloy.
Problem is vvt control as personally only interested in non computerised hardware. eg. lpg or SUs with meth inj.

I am getting it all ready hopfully for the datsun nationals. So, someone of you will like to know that i'm sticking with the turbo A-series, for the time being. well, for the datnats anyway.

But after that? who knows? anything is possible!

thanks for the suggestions!

good choice on keeping it A. Would you ever consider straight LPG? then intercooling works better and higher boost is possible.

It's a possibility, i'm going to get as much out of it as it is, then see what happens.

It's a fresh motor so it should last for a little while longer, we'll see what happens.