Well I've driven quite a few cars and the Contour SVT (maybe as well as other duratecs) seem to be much more sensitive to temperature and humidity.
On a cool night, an SVT contour may have no probs pulling a Prelude but on a hot day it will have problems with a Civic Si. Why isnt the Civic suffering as bad? The point is that there is way too much variance from the best to worse case performance on these cars.
Heck its the only car I know that doesnt like cold winters either. Every other car I have ever owned and driven just kept getting stronger and stronger. God forbid you drive a contour when its minus 10 degress celcius. Its going to be as slow as if its 25degrees in the summer. It appears the the contour likes temperatures between 5 and 20 degrees and nothing outside of this.
My motivation for ultimatly wanting to do a 3L is to make sure that at its worse case performance, its no worse then my SVT is now on a good day.