Alright, this should be a simple question..... I am the new owner of a used '94 volvo 850 turbo (140000 miles on it) . I feel as though the turbo isnt functioning at its full potential. Is it normal that at no point during driving does the turbo meter get past 3/4ths of its range. In other words, I can floor the car in sport mode from 0-100 and the furthest point the arrow will go on the guage is only about 3/4ths of the way up(or halfway into the white area). is this completely normal for this model?