Do you have 2 modify your differential drive when installin a sr20 engine?

No. The factory differential on your S13 or S14 will suffice. Remember the S13 and S14 are essentially the same cars in Japan but with the SR20 or CA18 motor and they used the same rear differentials with the exception of a few with limited slip diffs.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.