for all the parts required to turbo the na motor id run up a bill of roughly $4k without a tune and fitment of parts required that i cant do on my own, also as it is my daily, i need it back on the road asap , so if i have a part fail or it needs to have a part made up to mate with the 2jzge itd be off the road even longer
with the 1j, its a much smoother engine imo (vvti version) more responsive and imo sounds alot better and comes on boost quicker (standard turbo) also can be easily mated with my w58 box and run up to 10psi before i run into gearbox problems
Also the cost is roughly $1-2k cheaper than the cost of turboing my 2jzge with limitless potential. i.e , if i wanted more power out of my 2j after turboing it, id have to change the head, bottom end, fk around with the tune all the time (headache) and would have to spend heaps more than if i just started with the 1jzgte
Just seems a whole lot easier to drop a 1jzgte in and have a motor that already has come out boosted and can be tweaked with minimal cost (compared to doing the same to a 2jzge)