Answers are as follows:
B20Vtec Yes... P72 Head Yes... 296/290 cams Yes...
B16 crank & B20 rods, no... Use B16B crank & rods... (B16A rod is too short for block deck height with std installed heigh piston)
Capacity would be 1736cc @ 84.5mm bore...
Less stroke & long rods = top end power with coresponding losses down low.
Less stroke & short rods = Good low end & midrange, but dead up top.
Compression will be lower becasue you have reduced your swept volume.
C/R = Swept volume / Clearance volume
Rod rato has nothing to do with it.
One a near zero deck is achived, the C/R is arrived at as usual. Select a piston with a suitable crown volume.
Using more boost on a low compression slug, just makes the slug feel laggier.
I can build a turbo engine that is safe to rev past 10,000rpm & will last more than 5 years on the road....
Done it before plenty of times... not many others have though.
Tip is as with any engine build that is going to perform as intended & last.
Quality parts are needed together with quality machining, assembly etc...
Best advice.... Think about how much you really want this thing & be honest with yourself casue if you're on a turd skinner's budget it usually ends in tears.
Oh & I wouldn't be using a std B20 block as a start point.
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