Back in college a friend of mine built a 240sx with an sr20det coupled with a t3/to4 turbo with 3in piping all aroung, upgraded rearend gearing, cams, boost controller, and recirculator valve (also assorted other mods I can't remember). It was stipped and had didnt have any of the ugly **** that one does, but it put my supercharged 02 GT to shame everytime we ran it.... He routinely ran 11.40's at the track. Those cars can be very fast. He spent as much on the car, motor and mods as I did on my supercharger kit and mods. I mean, I would never drive that kind of car, but they can be built to be very respectable....