Mercedes C63 AMG W204 Remapping

Mercedes C63 AMG Standard & P31 Comparison

The Mercedes Benz C63 AMG uses the same 6.2L AMG V8 as the SL63 AMG and E63 AMG however in the C class AMG performance is limited to 451BHP for the standard car and 481BHP for the P31 performance pack car. We decided it was time to get both the C63 AMG and C63 AMG with P31 Performance Pack onto a dyno for some remap development work.

Firstly we took the standard power reading from both C63 AMGs and as expected the C63 with the factory P31 performance pack produced 27BHP more than the standard car, pretty much on the mark, Mercedes claim an extra 30BHP extra from the P31 performance pack.

Dyno Results

The Dyno runs on both cars produced some interesting results, the C63 (white vehicle) and C63 with Performance Pack (black vehicle) produced the same power and torque at the wheels at lower rpm, however as revs built power from the P31 performance pack C63 AMG continued to climb whilst the standard C63 AMG started to run out of breath.

Remapping the C63 AMG

Next we took a read from both cars and found both the C63 AMG and C63 AMG with P31 Performance Pack had the same ECU map bar higher RPM throttle opening. This explains why both cars produce the same power at lower engine speeds, however it is clear the P31 C63 AMG has a better ability to breath at higher engine speeds. We then proceeded to remap both cars.

The C63 AMG produced an extra 49BHP and 54Nm torque with much better throttle response whilst the P31 performance pack car gainedn 31BHP and 48Nm torque, again with greatly improved throttle response.

The dyno chart below shows the standard vs remapped power on the P31 C63 AMG at the wheels.

Why JR Tuning? How do we compare to our competitors?

Our C63 AMG Remap is the result of 2 years development work and provides a unique performance upgrade for the C63 AMG platform. This graph shows a comparison between a C63 AMG running on the dyno with a competitors Engine ECU remap compared to ours. It serves to highlight that not all tuning is the same - and what the results of a well developed tuning file can be, when compared to undeveloped flash tuning.

Some of the C63 AMGs We've Tuned