Ali_E55

i noticed that my tail pipes become black fast

not like other E55s


is it because more fuel is going to the engine

i remember my fuel pressure is set to (slightly Richer) via star


any feedback is welcomed

chiromikey

you're running race cats...it's normal.

Ali_E55

but my friends removed their cats and resonators, only keeping the last ones

but their tail pipe is shiny and like mine ><

i have to polish them weekly

chiromikey

a slightly rich set up can also cause it. your buddies may be running more lean than you.

Ali_E55

so is it profomance wise to reurn it to normal after i have changed my fuel pump ?

chiromikey

can you smell unburnt fuel at all...or is your gas milage really bad?

Ali_E55

i do feel that the tank goes down faster than before

and sometimes i smell some fuel

chiromikey

pull up your average milage on the instrument cluster. but if it was smelling really rich, you'd know!

Ali_E55

i will tell u whats the average when i return home

i don't frive it alot in the summer, once or twice a week after midnight

itsmeek

You may need a tune or have a vacuum leak somewhere..

ahmad0658

i have the same problem with my Brabus E55,

I hope that there is some answer, black black black.

Ali,

How is fuel consumption with you?

320 dreamer

better it runs rich than lean!

Ali_E55

i know it is better, but believe me, u dont want it 9.4 @ high rpms @@

it is so rich.

waiting for PC to chime in again in UAE to tune it with the new pulley and a really fine tune on the dyno ^______^