Originally Posted by
Racecrafter
"Negative Ghost Rider" by removing material from inside the crank case and sleeve you effectively increase the volume which in turn makes them even more inefficient.
THE best crank case volume micro engine I have "seen" has been the old GRP. Brilliant case design, schnurl design and very compact inside.
And I don't remember anyone "modding them for mileage"
Hmm, well good thing I run the TQ 501 engine. LOL, anyway, so by what you are saying is by increasing the volume which means you can get more air and fuel inside the engine, which equals more HP, so what about the making the crank lighter, and balanced and the conecting rod, as well as smoothing flow areas? this does not allow the engine to make the same amount of power with less fuel/air but limiting epa or a smaller insert? or by going down the straight, full throttle at fitrst and back off to half I figured the engine could better sustain the same rpm?