Considering what we start with for an engine...quality..ect., I think stuffing is way over rated in our application. The actual stuffing gains would have to be determined on a dyno to be realized.
There's many other things on the entire bicycle/engine that can be refined to help speed.
Here's a read-only thread...it's too old to post on...but covers some case pressure ratio and stuffing...
Using the painstakingly accurate method of determining the crankcase compression ratio I outline at http://www.dragonfly75.com/motorbike/PCR.html I discovered that my reed valved 55cc has a ratio of 1.2 and that a meager ratio of 1.11 is existent with my 48cc piston port engine. This ratio is...
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