Based on the results, the winner is the Rebellion Automotive tune. Not just because it hit the highest peak power at 324.9 wheel horsepower but because it has the best looking curve of the bunch. It does not have an aggressive dip and is simply very linear and smooth. The Powerflash line by contrast was ahead until it took a large dive and then maintained its curve until redline.
The Willall racing curve looks good until it just takes a tumble for whatever reason. The Evotech tune is the weakest of the bunch with less horsepower down low and an ugly looking line.
Powerflash and Rebellion are the winners here although the Rebellion tune has the cleanest looking run of the four and also makes the most power. A torque reading would be nice to see as well though.
Rebellion Automotive 324.9
Mercedes Benz A45 AMG Dyno Day Results!
Started the day off with testing an A45 in completely stock form. This was used to ensure that the front to rear torque split on the A45 could be checked and logging of the split ensured accuracy.
The test car was tested to determine what temperatures and ramp rates caused the car to go into the ‘cat protection mode’ so this could be avoided on the comparison car.
After a number of runs on this car, power settled at a repeatable 218 kw. The comparison car was then strapped to the dyno.
After a number of runs, the car was consistent at 224kw at the wheels.
This was a prime example showing that no two motors are the same, some will make more power than others. But it also showed that the variance was only 6kw
We used the one same car to test all units. Testing was done in DYNO mode, activated via the dash especially for dyno testing. Note: We have kept this as fair as possible, any question may be answered by the operator Sonny. I am no dyno guru!
Some info of the A45 used:
Grey A45 AMG, Aero kit and optional 19’’ AMG rims. Tyres are 235/35-19 on both ends.
- 8600Kms on the odometer
- Fuel was BP Ultimate 98
- Tyre pressures: Front 42PSI & Rear 35PSI
- Roughly 8600km on the odometer During run-in period (Always warmed up to normal operating temps first), car was not driven gently. Although I did try to keep it under 4500rpm (-/+ 500rpm) or so during the first 1500km, then drove it hard pretty much afterwards. Oil was changed around 4500km to Liqui-Moly Leichtlauf High Tech 5W-40 along with a new oil filter. - Quoted by owner.
This made 224.4 KW stock.
- Mainline Dyno.
- Speed used was 8KPH/SEC Up.
- Car remained strapped between all tests, and the tensioning did not change
-the distance on the dyno bed did not change whatsoever
- Dry air temp in Dyno room was 19.8c
- Barometric Pressure at 998Mbar’s
- Relative Humidity at 40%
Stage 1's used :
Willalk Phase 1