Originally Posted by
27/09
Apparently the iron block isn't heavier according to their blurb.
Of course it might be, but the comparison needs to be with existing aero engines, not a fictional aluminium block they might have used.
The cynic in me reckons if the weight was good news, they'd be shouting about it from the treetops. They're not, so I'm expecting the bad news to be concealed as long as possible.