hi does anyone know if it is true that all new bmw engines 116i and 118i are powered down 2.0l engines? if so i have a 116i e87 lowered 45mm all round with a few little tweaks and woundered if i changed the throttle body to one of a 2.0l what it would do?

The 116i is a 1.6l petrol engine. In contrast 118i and 120i are both 2.0l, but most probably (I'm not a BMW engineer) with a different ECU mapping installed, which downgrades the engine's overall power (on 118i) in relation to the higher spec unit.

The 116i is a different matter, as it comes only in one flavour, depending on the year.

The 116i is a 1.6l petrol engine. In contrast 118i and 120i are both 2.0l, but most probably (I'm not a BMW engineer) with a different ECU mapping installed, which downgrades the engine's overall power (on 118i) in relation to the higher spec unit.

The 116i is a different matter, as it comes only in one flavour, depending on the year.

Well said Mr.Face

It will all become clear once you check the engines they pop into the different cars. Wikipedia is a fantastic starting point...

Yeah, it is, although I like reading reviews on websites such as Parkers, or tech data from BMW or AutoTrader. A quick data comparison could save you a lot of headaches!

In regards to the engine power, the same goes for diesels: 116d is a 1.6l diesel and 118d, 120d and 123d are all 2.0l diesels. The main difference between the former two and the last one (123d) is that the latter is twin-charged (bi-turbodiesel), so it has the biggest potential when it comes to remapping.

Edit: Corrected the facts about differences between 120d and 123d.

ECU, intakte, throttle body etc

The 116d is not a 1.6 diesel, it is a 2.0 litre as is the 118 and 120. The 116i is a 1600 petrol