M3/M5 and GSX-R Conversion

I don't own a Civic (or a Honda at all) but would like to learn more about them. What is the weight of each body style (98-02), if that isn't too much info.

Also. What times would you expect from a Civic with a Acura GSX motor conversion... Or an SI with M3/M5 (forgot which one it was) conversion (1/4 times).

I used to hate hondas, but lately I've seen some ones that are pretty fast...