I) Car

II) PerfectPower Weighing

III) PerfectPower Sheet

IV) PerfectPower Results

     1) Power - 02022024 (339 hp) (PerfectPower mapping)

 

I) Car

 

Car: BMW M3 E46 (200x) - Abdel

Engine: 3.2 24V (L6) (S54B32)

Manufacturer data: 338 hp @ 7900 rpm - 269 lb.ft @ 4900 rpm

ECU: Siemens MSS 54 (original)

Mapping (David & Vincent): Optimized this day by David and Vincent (PerfectPower group)

Mechanical setup: Intake (Karbonius air box)

Fuel: UL 98

 

II) PerfectPower Weighing

 

Date: Fri 02022024

Location: France - 45

Note: Weighing with 3/8 of the tank (24 L)

 

1547 kg = 3411 lb

 

Note: Mass recalculated with full tank = 1577 kg (3477 lb)

 

III) PerfectPower Sheet

 

 

Note: Car equipped with a short axle (4.10) (original 3.625)

 

IV) PerfectPower Results

 

1) Power - 02022024

 

Date: Fri 02022024

Location: France - 45

 

Car configuration: Optimization of the mapping by David and Vincent (PerfectPower group)

 

Software: PerfectPower Androïd 6.1.7 (new version)

Hardware: Xiaomi MI 8 + RaceBox Mini 25 Hz driven by PerfectPower

 

Report: Two measurements performed for the validation of the results of each map tested:

- With 3 people on board (Abdel & Vincent & David) and with 3/8 of the tank (24 L)

- In 3rd gear from 2000 to 8200 rpm (rev limiter)

- With the use of the WIXGEAR universal magnetic windshield mount according to the strict recommendation of PerfectPower for the most accurate measurements possible

- In both directions of the road then averaging of these two measurements according to the strict recommendation of PerfectPower in order to eliminate the effects of road slope and wind (road used on a false flat, 5 to 9 hp difference between the two directions) 

  

A) Final Map V7

  

Official Result = Average of the two measurements

 

 

B) Comparison BEFORE (Map V4) / AFTER (Final Map V7)

 

Official results of each map

 

Note 1: Map V4 is not a starting map, it is a map already optimized on the injection settings! Vincent and I who have years of experience on these engines (we have adjusted dozens of them) do not need to carry out PerfectPower measurements to optimize injection, so we only start them afterwards.

 

Note 2: The total gain obtained from the optimization of the ignition advance is 9 hp (from 335 to 344), and we estimate that obtained from the optimization of the injection (not measured) at around 5 hp, i.e. a total injection + ignition gain of around fifteen hp.