lightened flywheel, heavy duty clutch, sticky as shit front tyres, good suspension setup around, talk to whiteline, i know they make castor kits for AE92 but im not sure about AE82. if ur running 17's itll affect ur acceleration so somethng like 15inch would be good. try to find the right amount of revs u get the quickest launch, remember ull launch faster if ur tyres arent breaking traction cause when ur doing that there is less force pushign ur car in a forwards direction.
BTW: rthy is u ever come to sydney theres something id like to show u is possible in aa FWD car that contradicts ur comments.