6ts 40 pin file

@superhauler

 

900 is fine.
What you should do is get that ecm calibrated for your engine . Right now the timing is calibrated for the engine it came off of. So timing could be anywhere..
After that if your happy with the power then run it.

 

^^^^what he said. Also you said the shop did trim numbers. Did he load the correct trims for the injectors or load one of the (hot ) trim codes ?

 

what injector part number is the 550 6ts compared to the 5ek 450? I though the 455hp 5ek files were for smaller injectors? the research of the test spec numbers I just did shows that your engine being a 6ts 550hp is fitted with 0r4894 injectors. the 450hp 5EK engine is fitted with 0r4893 injectors which have a smaller tip. the 5ek 450hp ECM you have on your engine is calibrated for 450hp with small 4893 injectors, so it would be commanding a decent pulse width to deliver the fuel required for that power. now as your engine sits the ECM is commanding a decent pulse width thinking its controlling 4893 injectors for 450hp. the ECM has no clue that the decent pulse width is commanding is controlling the bigger tip 4894 injectors that are actually in your engine. you're mechanically getting more fuel than the ECM intends because you have bigger injectors than the ECM thinks. I would have a guess with your current set up, provided the trims entered were standard and not "hot" ones you'd be near 500-550hp. if the trims are "hot" ones then god knows how much fuel you're getting.

fitting bigger injectors with a file that thinks it has significantly smaller injectors is one of the things we do to make decent grunt on factory files. I often fit 3.0 tip 8502 into engines with files thinking they are controlling 2.8 tip 8501 injectors.

personally I would just flash your 6ts 550 file onto this ECM, its a fast simple task.

 

flash your original 550 6TS file into this ECM and load the factory trim codes, not hot ones.

if you want more fuel and power fit a bigger injector, don't stretch your PW on the small tip injectors. wrong way to make power

 

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