ok guys i got my 85z listed in my sig below. its a tpi car and i wanna keep it that way. As it sits its running mid to high 13's. what kinda power adder do you sugest for it to get me low 13's to high 12's. what power adders are available for it. im kinda dumb in this area in a n/a guy at heart. i dont wanna run nitros though. im just not a big fan of it.

 

Your goal of high 12's in the quarter mile can be easily achived N/A. Try to lighten up the car abit, work on better traction, Perhaps better heads, Burn your own chips for better perfomance. If you want low 12's or better then a centifugal supercharger or turbo(s) maybe the way to go if you dont want to use Nitrous Oxide.

 

from what i have read so far i was kinda leaning towards a supercharger/procharger kit. but does engine compression effect their performance levels any? because my motor has almost 10:1 compression. is there currently a supercharger kit that will work on my car?

 

i seen procharger makes a kit for my 85tpi. what all needs to be done to my motor to make it capable of accepting the procharger? timing adj, diff spark plugs?

 

Well the procharger kit will definitly make a dramatic improvment in performance. 10:1 compression is rather high for a pump gas street car using boost, that can easily be addressed by swapping out your heads from 58 cc chambers to 64 cc chambers also a little bit thicker head gasket can lower your CR so that you can safely run 6-8 psi on pump gas. Its just a matter of how much money you wanna spend.

 

well i just got the motor together and it dont even have 100 miles on it yet. im guestimating 10:1 but i havent done an actual check on it. can someone describe to me what kinda procharger kit i need and what if anything extra needs to be done to the car to make it capable of running the charger kit.