No brainiac here.. but!
Rebuild!
Y8 Tranny!
Boost!
Get more money if you want to step that close to single digit runs.
My xplanation goes as follows, FORGET FAST & FURIOUS. If you want subs, PS/2, Giant Metal wing on the back, massive hood (and roof scoops), and keeping all the comforts of your darling little civic... you wont go 10sec.
FWD 10 Second cars will need a lot of care, especially Daily Driven.
1.) Driveshafts. 500WHP isn't worth shit if you got driveshafts meant for the street.
2.) Suspension. Do you really mind feeling every little pebble in the road? (ok, sarcasm here, but its not always comfy!)
3.) THEFT. If you got a hot car that is daily driven, and you work at the same place every time you go to work (most people do.) you run in to these no good thieves, or well... without your valium, you believe there are thieves.
4.) Carpet. So, you tweaked the motor, suspension, transmission, and got yourself an alarm huh? Removal of most interior components will increase 60ft times.
5.) Higher octane fuel, can your wallet truly afford 94~100 OCT rating every time you pump? Let alone a 10sec car on the street burns much more than our normal 16sec economy cars do.
6.) Oil. High horsepower, high maintenance. Not just oil, but to make sure your rods/rings and any other moving parts stays moving, your maintenance intervals will be shortened.. amazingly. I talk to a lot of daily drivers with 11-12.5 sec Acura/Hondas and they 'baby' their motors by a 1200mi oil change OR LESS.
Please keep in mind, I'm not trying to harrass you or deny any of your goals, I'd just feel horrible if you were to spend the dough and not be able to keep up with it. From my heart to your wallet, please keep some outlook on what COULD happen.