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Those build sheets were interesting but hardly sufficient to base a motor build on. The BMARA goal is much different than the Poweri D2 goal. From what info has leaked out Poweri wants D2 motors held to the Scream Focus [185 hp] or Super Focus [205 hp with aftermarket cams]. BMARA wants all out racing hop ups. We have struggled with this in the Illini Series as most stock motors have some weaknesses, especially if you start with a salvage yard motor. Once you get into replacing any parts it becomes a reliability vs. performance question.
Cams are an obvious power adder. Rods and pistons can be neutral, depending upon the weight and compression ratio. The injection, pumps, and other accessories are expensive but are not a "wear" item that needs regular money thrown at it.
The big money in these motors is block stiffeners and timing chain drive parts. Once you go north of 200 HP you are going to need to improve these features or you'll have failures.
A professional engine builder will insist upon these costly changes because his reputation is on the line. A real build sheet would have part numbers and sources, not just budgetary prices.
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