So to start off I have a guy that has a turbo 4.8 that has been beating on his car forever. I tuned it all times over the years. We never have had a problem till this week when we swapped out the 127 lb injectors for the VS racing 210lb injectors that a lot of people say they have been using. I know these are cng injectors and there really isn't any data so ive just been winging it.
The problem I have is around 120kpa and 4500rpms it goes straight lean. Verified the fuel pressure raises on the regulator as it should and we didn't have the problem till we put the injectors in.
Is there anything in the injector data that would cause it to go lean in boost?
Is there a airflow limit im hitting or something? dyno 1 august 13.hpldyno 2 more ve august 13.hplAttachment 72482steves lean.png