what it all comes down to is what do YOU want to do? do you want a FI or NA setup. H22 is easy, but all you can really beef up is the head and rods.
Originally posted by 1stGenCRXer
The problem with the H22 block and boost isn't the pistons or rods or closed deck, it's the cylinders. You don't get ductile iron sleeves, you have a high silicone aluminumish bore that doesn't play nice with the forged pistons you'd find aftermarket for a purpose build. While the bore is fine for NA applications since it is very resistant to wear at high RPM regardless of the R/S ratio, it can't overcome the additional stress it faces with boost forcing the piston skirt against the cylinder from two directions [the rod against the cylinder, and the boost on the piston]. Resleeve the block with iron sleeves, run forged pistons, this can become a moot point.
the F22 on the other hand, you can beef up all of the internals, not just the head. it is SOHC which means no blowby and the F22 also has a lower compression ratio than the h22 so there again it is more ideal for a FI setup.
either way it all comes down to money and which way you want to go.