I want to boost 5psi or so with a afc. My stock injectors at 17.6lbs, and to be fair they are used in cars with 220whp-235whp (same motor as mine, just bigger displacement). My motor is 165whp take or minus a few, I really doubt that my car will get over 240whp on 5psi.. So will I need bigger injectors, or will I be fine with what I got?

Also, for someone with no experience tuning, how hard is it to tune with a afc? Will I start from scratch and make my own base map from there? 'cause that seems like a damn lot of work that I don't know how to do.

 

^ what he said

 

Can you explain why? I hate yes/no post which doesn't explain anything.

 

you need a wideband a/f... :P

 

like nick32 said, you should spend some money on a wideband. Once you have your wideband figured out you can see if your afc is doing the job with your stock injectors or if you need to get new ones. search around to see if anyone else has a similar setup to the one you're trying to make and see what they've done. the car and motor type would also be nice to know in case someone here has experience with the same car or motor.