I want to go 5x12 SDX injectors and possibly dv. My first question is will my stock lift pump supply enof fuel to my pump at 3200 RPM or should i go with a fast fuel or an air dog. If i do need an air dog or fast fuel what size would i need. My next guestion is are dv needed with my set up and if i need em what sizes should i go with. Thanks for any help you guys have always been a big help to me.

 

Stock lift pump will be fine.

 

X2

 

at what point do i need and air dog? And do they really help if you dont need the extra fuel. i heard they separte the air from the fuel and all kinds of good stuff does any of that really make any diffrence. Also should i consider dv's or is that another thing they say you should have but u dont need.

 

generally 550 to 600 hp is when you need to replace a properly working stock lp but they have gone higher

 

DV's increase the duration of the injection event. How long you want to be supplying fuel to your injectors is all up to what you want to do.

 

IMO your 181 dv's will be just fine for what you want

 

get a AD or a raptor imo. keep the fuel pressure up just my opinion though.

 

Hook up a fuel psi gauge and find out, your stocker might be fine or it might be weak and need replacing.