[MikenOH]

Both use a flat layout rather than a V but I'm thinking that's where the similarity ends.
I'm not familiar with the Subaru block/crank set up---do you have any info as to how the crankshaft is supported in the Subaru vs. the Boxster? The Boxster's crank in supported by some sort of cradle that is bolted to the block casting--help me out guys, if I'm off on this.

I'd be interested in Subaru's approach to their "H" engine since the WRX's output is 300HP in it's newest configuration. I could be wrong but I'd guess their approach to the block rigidity is more conventional than Porsche's. Last I've heard, their isn't an RMS club on the WRX forum.

In any event, I think it would be an interesting comparison to see how two different car manufacturers with engines of similar design, dealt with supporting the crankshaft.