type 1 or 4 better with turbo

[kenfyoozed]

ok so im beating a dead horse, buch please help.

im looking for longivity and reliablity, but want to add a turbo. is one better than the other?

for a type 1 i was thinking of 1776 or 1915 .

for type 4 i was looking for anything stock.

ill be putting it into a bug. im thinking a mildly over stock type 4 with a turbo will be the best route, but wouldnt this also be more expensive.

which would last longer, given both are cared for the same way?

neil