NewC,


It is no secret that model engines are designed 'down to a cost' and not up to a power...

For an engine to sell (street price) for ~$200-250, its production costs must be $15-20.
Yes, that is the net residual cost to the manufacturer, to produce a four-stroke engine.

All the rest is profit for the entire chain.

If actual production costs determined the 'street price', a Saito 1.80 would cost ~10% more than a Saito .40.

Yes, the market theory does work and you are (actually, we all are) willing to pay significantly more for a larger engine.


All of what you had suggested in your post, will not be incorporated into any model engine, since its cost would skyrocket...

The motto is KISS (Keep It Simple, Stupid).
You want more power? It is much cheaper to just get a bigger engine...

Scraper plates and PCV can be good if you are modifying your own, full-size 'drag racer', but cannot good for a production model engine.