Pointless Turbo Semi-Frankenstein

[foamypirate]

I was bored in my sunday school class today, so I started thinking up crazy things to do with motors. This is the result of my brain storming.

Sleeved F22 block bored to 87mm (deck height - 219.5)

H22 crank (90.7 mm stroke)
F22 Head (Combustion Chamber Volume - 50cc)
Custom Wiseco pistons (0 dome cc, 30mm compression height)
F22 Connecting Rods (141.50 mm length)
OEM headgasket (0.026mm thick)

This would put your compression ratio at about 8.7:1, with a displacement of 2157cc. Basically stock F22 displacement, compression, but with the revability of an H22.

Morale of this story:

Totally pointless, it would be more cost effective to just get an H22 and sleeve it, but it crossed my mind. If one were so completely bored and well-moneyed, do you think this would actually work?

[foamypirate]

Alternately, one could just use an H22 crank, F22 Pistons/Rods, and come out with the same 8.8:1 compression ratio, at the cost of about 100cc's of displacement.

[mtnickel]

Alternately, one could just use an H22 crank, F22 Pistons/Rods, and come out with the same 8.8:1 compression ratio, at the cost of about 100cc's of displacement.

I'm pretty sure with the shorter rods your compression ratio would be down. HOw do you figure you'll have the same CR with a shorter stroke and same length rod(deck clearance would be 95-90.7/2 less = 2.15mm negative (in cylinder)...multiply that by the area of the bore (85mm) and you get a lot more combustion chamber volume.

Mark

[foamypirate]

Ah, I forgot to change the combustion chamber volume when I figured it out, thanks for pointing that out.

[foamypirate]

Ehh...hello 3.69:1 compression ratio! =P