Hi Guys, thanks for the answers.

Today i received my adjustable fuel pressure regulator, so I changed it with the original regulator. With 60% E85 und 40% E5, the car goes like Super E5 (5% alc).

Before i changed with the adjustable regulator, the car sucked, misfire and no power (60/40).

If the gas is empty, I will use E85 only.

I cant say what pressure I adjusted, cause I havent a fuel pressure gauge.


Injectors: I searched around, the Injectors from BMW M5 (s38) are ca. 250cc. And I think those could be used. Also the the 2,8l from VW VR6 Engine are 250cc. Dont know if they would fit, but I think so.

If I cant enrich the afr by the FPR, the next step I do is changing my injectors.

Also I'd say the Injectors from S500 are too little - this engine got less power for its cylinders than C36. And the C36 AMG got (compared with EPC) exactly the same Injectors than M104 2,8 and 3,2.



Here in Germany are only a few people who drive E85, cause german people are very conservative, so if it isnt approved from MERCEDES BENZ, they wont use it. thats it.
btw, i refuel my car in France