I’m not totally sure what form GM’s passenger-car diesel engine for the US will take. It looks very much like it’ll be the 2.9 litre diesel engine that’ll be manufactured by Italy’s VM Motori. They already make a 3.0 litre diesel unit and it seems that this engine will be a derivation of that unit and will make a US debut in 2009.
It’s tipped that this engine will also be a possibility for the next Saab 9-5, too. This much we’ve heard before.
The reason for my hesitation at the beginning of the piece, is that I don’t know if this new piece from Motor Authority pertains to the development of that engine, or not. If so, then it sounds like the development is going well and the innovations should mean good things for the powerplant going forward:
The innovative engine works by reversing the flow of air and exhaust gases going in and out of the cylinder heads. This means that hot exhaust gasses can be transferred to a turbocharger in the gap between the cylinder banks. According to Automotive News, the result is the elimination of numerous parts and more efficient use of heat. This in turn leads to better fuel economy and performance as well as improved NVH and emissions levels.
Some of the parts the design eliminates include the intake manifold, heavy cast-iron exhaust manifolds and their associated parts such as gaskets, bolts, nuts, studs and most heat shields.
The picture they’ve used doesn’t reconcile to the VM Motori picture at all, so I’m wondering if they’ve just stuck up a photo of any old engine, or if this is an entirely different powerplant they’re talking about.
The numbers sound similar, though, so it’s a possibility.
thanks David W.
I’m not sure how new this is but Turbin got it in a newsletter from BSR just this week and if you TiD owners don’t know about it yet, then it’s worth reading about.
BSR have a PPC tuning kit for the 120hp and 150hp TiD engine. The one Turbin was reading about was the 150hp upgrade, which will take your TiD to 184hp and 412Nm of torque, which is a LOT of torque.
That’s a higher spec than the new TTiD. Well, until BSR get their hands on a TTiD, at least. The great thing about the TTiD is the dual exhaust, which makes the car sound unbelievably good when you’re driving it.
Anyway, if you’ve got the 150hp TiD and would like a little more poke, the BSR product page for the tuning kit is here.