the ga16de has a write up somewhere in the states where Mike Kojima
puts a snail on it and finds that with head work alot of hp is unleashed
and can challenge not beat by scare many sr setups when done properly.

the successor the ga16 is the qc18de like in my mommas pulsar, awesome
torque and much better hp when you rid the horrible pre-cat with headers.
http://en.wikipedia.org/wiki/Nissan_QG_engine

The qc18de or ga16de in NA is 115hp or equal the e15et with good headers, extruded
honed manifold and bigger throttle body should make 135 or 130hp respectively.