Take your pick: BMW Quad-turbo 3.0 d or Audi 4.0 Biturbo TDI

Posted on 19-05-2016 at 10:57 by Dizono – 103 Comments”

Battle of the über-diesels.

The news was already coming, but recently presented BMW finally its 3.0 six-in-line diesel engine with four turbo’s. This is in the 750d good for 400 hp and 760 Nm, in which the full torque from 2000 rpm is available. Two of the turbos are working under low pressure and help the car at low speeds to additional power. The other two turbo’s work under a higher pressure and give the BMW its oomph in the higher toerenregionen.

Audi takes with its 4.0 TDI is very different. First of all, we can not, of course, to the difference that the BMW is a drieliter six-cylinder engine, while Audi in the new SQ7 TDI, a V8 with a litertje more great. Just as BMW assembles Audi two high pressure turbos, but used the no turbo’s to a turbogat to eliminate. Instead, they choose in Ingolstadt for an electrically driven compressor. Because a turbo exhaust used air to compress, and compressor is normally mechanically driven, for both the engine first to get going before the extra power that can be delivered. By the compressor is electrically driven, the 4.0 TDI from Audi from a standstill to have the extra power and torque. The figures speak for themselves: 435 hp and 900 Nm.

Two quite different engines, but with a similar result: a lot of power and a monstrous torque. BMW chooses for the ‘more is better’solution, while Audi’s innovative work with its V8-oliestoker. Looking at the figures, it seems that Audi in the advantage, particularly in terms of torque. We look at the specific power and torque per litre than the BMW is the winner. I let myself certainly be careful to conclude that you with both blocks nothing.

Apart from the cars in which the two engines debut, the 7 Series and SQ7, what power has your preference? Myself, I hope that BMW this diesel in the 6 Series Gran Coupe is going to deliver, while an S6 TDI Avant me as well as music in the ears sounds. Choices, choices…