Warning this is a novel. I've been wanting to figure out something that can help me with my 60' times at the track but can't seem to find any real good info out there. My setup is a '91 Spirit R/T, 568 w/quaiffe diff., 23.5x8 or 23x8.5 15 M/H slicks on 6" steel rims(can't remember exactly and they are too far away to double check and they are 3 yrs old), Eibach springs F/R, Monroe sensatrack struts and generic airshocks out back. I've tried different air pressure in the air shocks and slicks with minimal difference. Air pressure in the shocks has ranged from 100psi to 60 psi with a few runs done with 0 psi. Air pressure in the slicks has ranged from 15 to 11 psi, best results and consistency coming with 11-13psi. My 60' times are normally in the 1.95-2.0 range, with one 1.89 which was also my PB e.t. 1/8 miles times range from 8.3-8.4 with one run being 8.16 all between 85-89 mph.
When I launch I blip the throttle to keep the rpm between 5-6k trying to keep the turbo spooled a bit, doing my best to launch at 5500+. Last yellow the accelerator hits the floor and I dump the clutch; in that order.
I feel that there are better times in the combo if I can get this all sorted out. The car doesn't bog off the line, yet I felt a definite difference in the 1.89 60' compared to the normal high 1.9-low 2.0; it just felt smoother off the line is the best way to describe it. Any advise you may have is very welcome.
Here are some pics of how the car looks coming off the line if that may be of assistance. I don't have any pics of it with the slicks and 0 psi in shocks at rest.
13 psi in slicks, 0 psi in shocks. 1.97 60'
13 psi, 0 psi, 1.89 60'
60 psi in shocks, 13 psi in slicks 2.04 60'
60 psi in shocks, 13 psi in slicks at rest