new volvo d13 engine

[Rawze]

(05-01-2016 )sbtrucking Wrote:  http://youtu.be/9PbxmRA9vbs

Second turbine instead of compressing air aids the crank instead

Detroit does this too. It is to re-claim some of the energy wasted because of excess back-pressure the EGR system makes.

Gearhead has experimented with this heavily on the detroit and has said it is total bullshit! -- The engine is more efficient without it because it restricts too much heat behind it in the exhaust manifold and turbo with it installed. It makes the the engine have a shorter lifespan due to constant heat buildup on the turbo, etc. and makes for shorter injector lifespan too.

After a good delete,... removing this system makes the engine much more efficient.

I was told that a construction company that had very high torque demands lost several engines pre-maturely because of this same system, had them all removed, and they stopped loosing engines.