ok so have the comptech s/c and i want to run 8 psi first off what size pully is the 8 psi on a ap1 kit and 2nd is 8psi safe for a stock s2k other then a stage 2 clutch and exhaust and a tune on e manage ultimate thanks very new to forced induction so sorry for newb questions also i did search i just couldn't find anything

 

most will say its all in the tune

 

the answer is yes, i run 10psi turbo on a stock motor

 

yes you will be fine.
if you want, you could run meth to be even more safe.

 

i ran 12psi all stockbut i was tuned

 

aftermarket fuel pump is necessary (if you don't already have it)...

 

4" pulley and you will need larger injectors as well.

 

already have a walboro and i don't have aftermarket injectors but i was under the impression that stock injectors could handle 10 psi on the greddy turbo so why would the supercharger need upgraded injectors i know they will be at there max duty cycle but i don't plan to go any higher for a good while

 

This guy's english hurts my head...

 

You can get away with 8psi with stock injectors. Yes the injectors will be reaching max duty, they work but its not ideal long term. Besides, in your case with already using a device that can run aftermarket injectors such as the emanage, it doesn't make sense not to.

If your staying at 8psi 440's will be much more sufficient. I have a set for sale with pnp clips if your interested.