On Mon, Aug 29, 2011 at 10:40 AM, Allan Streib <[email protected]> wrote: > On Mon, 29 Aug 2011 10:32 -0700, "Alex Chamberlain" <[email protected]> > wrote: > >> Sweet. So all the exhaust is supposed to go right into the turbo. >> Interesting. The plumbing on the USA version like mine looks like the >> exhaust goes partly into the EGR, which makes sense (from the EPA's >> point of view, I mean)---partly into the turbo, which makes sense--- >> and partly straight out into the cat, which doesn't make sense to me >> (why waste exhaust gases that potentially could spin the turbo >> harder)? > > The diesel turbos don't provide a lot of boost IIRC, about 1 atmosphere? > Spinning the turbo harder would produce more boost than needed and maybe > increase exhaust backpressure vs. just venting straight out. >
OK, but I am ASSuming that the Euro version of the exhaust manifold is the optimal one from an engineering standpoint, while the USA version is a compromise. Alex _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
