Hi welcome to hondastyle!
I would most definately go with the b18c1. You'll have more horsepower and torque to play around with rather than turbo'ing the d16. You'd need to run atleast 7-8 psi to reach the HP potential of the b18c1, and whether you choose to go all motor or turbo on the b18c1, you'll have a much better platform.
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everyone loves the turbizzim.
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