im going to be doing the vafc hack on my 99 gsr. my question is with the vafc and the 450cc injectors do i have to have a bigger fuel pump or will the stock one be alright. im gonna be running around 8 psi. some help with this would really be appreciated. thanks

 

bump

 

you'll definately want a fuel pump........look around on here, you can get them for 80 bucks shipped to your door

 

check out lightningmotorsports in the sponsor forum, they have the best prices on walboro pumps

 

No, you won't need a fuel pump.

Read the AFC hack links in the FAQ, top of this forum.

 

im runnin the same setup as u jus not vtec but im runnin 450 wit a walbro fuel pump and vafc and its runnin great since i got those big injectors i didnt need the fmu ne more but u will probably lean it out around negaTIVE 25 on the afc to make it idle but make sure u have A GOOD TUNER