I'm uses a 12:1 disc in my fmu on my turbo civic and my car is running really rich. I'm only running 8psi with a 1.6L vtec so I figure I should get a 8:1 or 7:1, but I don't know which one. The vortech site said the 8:1 is for cars with 24 lb injectors and the 7:1 is for cars with 19 lb injectors. I know my injectors are 240cc but I don't know what they are in lbs. Does anyone have any insite that would help me choose which disc I should use. Thanks

 

I forgot to mention that I have a 190 lph fuel pump.

 

try a 8:1