Power of the 240sx
 

i have 131000 miles on my car already and i'm planning to go turbo, i just want to know how high (max psi) i should boost without blowing my motor in a quarter mile. I don't want to rebuild my motor because cost too much. Would I be able to hit at least 13's?

I think you should get a compression test first, so that you'll get a much more accurate answer.