|
Personally I think they are going in the right direction with the integrated exhaust manifold. I think they should go even further and get some of that exhaust heat in the intake manifold as well as eliminate the head gasket as was done decades ago.
With a single casting consisting of the intake, exhaust, and cylinder walls combined with the head you would never see any gasket failures in those most prone areas.
While I understand the principles involved with cylinder disabling, why not just have two 2 cylinder engines capable of working independently or together. I think Ford ecoboost 3 cylinder may be a better compromise unless aero drag is reduced to the point where two cylinders would do the job up to about 75MPH, but then you could also reduce the displacement of the 3 cylinder.
What I don't like is the pistons still reciprocating as well as the upper half of the rods as well as the imbalance of two cylinders subject to combustion heat dissipation and two that are not.
regards
Mech
|