When is a fuel pressure regulator truly needed? I am curious if I need this because I have a 1000cc RC injectors, but I am using Hondata K-Pro and not AEM EMS. Sorry I know the quesiton may have been brought up but couldn't find it in the search. Thanks in advance.

James D.

 

i believe the answer is over 60psi of pressure at the rail, but i could be wrong.

www.evans-tuning.com

he has a nice big checklist for what is necessary for different applications.