Originally Posted by AMGLover
Congrats you have pretty much a base 112.960 drivetrain the way it came out of AMG. Don't be bummed, the pulley is not suppose to give you much increase in hp, it is meant to give you tire shredding torque and that cliff like torque curve (sweet!) - May I suggest that you start of with 200 lb in the trunk, you may have to go up to 250 since the Xf is so short in the back.
Now the trick is to get your top end to 6,375/6,450 rpm. The engine is very happy to do bursts that high, a friend of mine has his C/32 red lining at 6,650 and he puts out 408 hp. This was primarily done with ECU tuning and not much else.
BTW what was the Temp & octane when you did your first dyno?
again congrats and play safe with Mr. Hyde
91 octane, only because i'm in cali.
i don't know what the temp was but it was fairly cold, it was during one of those rare rainy occasions in So Cal.
i've been reading your posts and you seem to be very knowledgeable of this car and mbz, what would you recommend on squeezing more power without doing NOS or meth injection? do you personally know of any proven methods done by our mbz brethrens?
thanks for your input.