another twin turbo e55 amg is born at BIP
Do you roll into the throttle or stab it?
if u have on the car another TCU, it will not connect clearly with the ECU, and u can verify this with star diag as the tcu will not take coding with the vin/model designation of the car.
We are re-doing the fuel system now to return style. The fuel pressure is dropping during a pull and throwing misfire codes.
The current fuel system is:
1000cc injectors
dual 340lph Division X fuel pumps
modified stock fuel baskets to accept more fuel
brand new sender unit assembly
BIP looped rail with drilled out feed rail opening
The pressure is sitting right at 82psi at idle, and at the end of a pull where is starts to break up, it is 67psi. This is with seeing 13 pounds of boost.
Last edited by chawkins2001; Jul 14, 2014 at 09:33 AM.
* Took out the factory sender unit, and removed the stock fuel filter.
* Removed the factory fuel pressure regulator below the sender unit.
* Ran a bigger feed line upfront to the fuel rail, and put in an inline fuel filter.
* Ran a return line back to the gas tank off the loop portion of the fuel rail, with another inline fuel filter.
* Installed an engine bay fuel pressure regulator.
The plan is to have the car strapped back down to the dyno by tomorrow morning. If the fuel pressure holds constant and does not drop, and the car still breaks up, then the kit will be pulled off and sent back to the vendor.
The Best of Mercedes & AMG


Joncl, the vendor has not given us any feedback on what to do. I have done research along with BIP on our own, and tried to address all the problem areas. RBJ's kit and mine are different, so it is hard to compare why his runs and mine does not. I am not R&D'ing the kit anymore after this fuel pressure issue. It will be pulled off and sent back.
or better yet just get the Biturbo from AMG
what ever path you take I hope you have great results. must suck not driving youre car for over 4 months
Last edited by RedBullJnky; Jul 15, 2014 at 02:39 PM.
















