The 1.6 commonrail turbo diesel engines have huge potential, for being a small engine. This is the 105 bhp version and the owner came down from a 2.0 with 150 bhp in a Volkswagen Eos so felt the car really lacked low rpm torque and power when overtaking on a motorway. Obviously being used to a car with a bigger engine and more torque as standard meant they had to do something about it.
When testing the car in standard form, the 105 bhp version of the 1.6 always make more than claimed, usually around 112-114 bhp. As you can see on the graph below, this car made just over 113 bhp, exactly as expected. Standard figures are now irrelevant considering the car now produces over 150 bhp with an increase of around 70 nm in the high rpm! This car now matches the performance of the old Eos but will certainly drive a lot better.
Power gained: 37 bhp
Torque gained: 60 nm @ 3,400 rpm