the term is write off not ride off! now that i have that off my chest,

sr20de compared to a15... would choose sr20de due to reliability compared to a15 pushing out 14sec 1/4 miles.

sr20de compared to ca18det.... unless you sort out traction, you might as well go sr20de, as most caare luck to get 12 but heaps in 14 to 13sec bracket over 1/4 mile as no traction.

Its all relative to what you need it for. daily and fun sr20de, fun weekender ca18det.

another bonus sr20 is timing chain not timing belt, extra piece of mind there.