About fast does a stock 99/00 civic Si run? and what would need to be done to get it at around 11/12 seconds without nitrous?

 

not sure on the 1/4 mile time on a stock but i would imagine real high 15's. in order to do that you have to have that thing completely gutted out with like a h22 motor big *** turbo and all internals possible. along w/ suspension, slicks on the front and a good driver.

 

With the engine you have, you would need a turbo and build the internals, to get it into the 12 and maybe 11s