Vitara pistons won't yield anywhere close to 11:1 compression. The only way to get them close to the deck is to use custom length rods (yes, I know who makes them). Even then, you're looking at 8.5:1. I don't think this guy is even building an engine...
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Honda-Tech > TampaRacing
TR "Old Skool EF" Member #666
All motor 1.8L: 201/140 More coming soon 
I mount an balance 24" tires for $40 each.