If you have a technical problem with your 200sx, need help fitting a modification or even want a rough idea how powerful your car is there is a good chance you could find assistance in one of the following threads
S13 Useful Threads
http://www.sxoc.com/vbb/showthread.php?t=64002
S13 Guide to Modification
http://www.sxoc.com/vbb/showthread.php?t=63508
S13 Power Figures
http://www.sxoc.com/vbb/showthread.php?t=142254
S14 Useful Threads
http://www.sxoc.com/vbb/showthread.php?t=70865
S14 Power Figures
http://www.sxoc.com/vbb/showthread.php?t=123910
S15 Useful Threads
http://www.sxoc.com/vbb/showthread.php?t=172195
There is also a technical theory section here
http://www.sxoc.com/vbb/forumdisplay...c&daysprune=-1