MrBrace,

You run 12 psi on ur F-max kit? Jesus, what kinda numbers are you getting with that setup? Do you have anything else done besides the kit?

See, I have the F-max kit too (alot of things i replaced tho for better parts) on my F23 and they said max boost pressure is 8 psi. Now, i know they want to give you a safe number but 8 vs 12 is a big difference.

How long have you been on 12 psi cause I would like to know how tough these F engines really are so I can maybe up the boost. I'm making 246 HP 238 TQ on 6 psi and I am getting new injectors(old 440's dont have enough juice for 8 psi) so I can tune it for 8 psi.