New fuel pump and injectors

Originally Posted by eliboy

Hi all,

I just got used (new for me) 525 fuel pump + CJM S1.SE Fuel System + ID1300 injectors and flex fuel sensor. The final goal is to get the car fully flex tune by a tuner but till I can have this done I will like just to at least install the new pump as I needed to ship my old one as part of the deal. My old pump was 255. I am running TT with ecutek tune and wanted to know if I only replace the pump will the tune be able to handle it? I don’t want to ship my car to the tuner I want to drive it there, I am ok if I need to keep the car off boost, no more than 3k rpm and very slow acceleration. What you guys thinks?

Also, I know that ecutek have the injectors size as parameter so will the tune will be able to adjust if I install the new injectors and change the value in ecutek?

Thank you for the help!

Originally Posted by JLarson

Just having gone through this, I can tell you the tune will definitely not scale with injectors.