Very useful info thanks!
So the main changes are:
Compared to the 170 hp unit, the 140 HP has:
- A dedicated engine control unit;
- A dedicated and smaller variable geometry turbine;
- A dedicated air intake chamber without swirl valves;
- A dedicated, variable displacement oil pump.
Many drivers suggest the power delivery on the 170 is more progressive, delivering torque further up the rev range. That's going to be a bonus to people who prefer petrol-like power delivery, like me. I'd agree from my test drive that the 170 unit has a relatively nice power spread.
Unfortunately I haven't been able to test a 136 in a 159SW (which is what we are looking to buy), as there are relatively few around. The 2-3 year old cars are mostly 170bhp TIs, which means they are pricier.
Brat Pack no.8