Quote:
Originally Posted by janvos39
That would give a 325 cc with 73 bore and 77.6 stroke or should a longer stroke bring more assuming rev`s go down further. Probally a longer stroke can be accomodated in the crankcase as well. Honda uses in some models an even smaller bore to stroke ratio for the best FE.
|
I don't know where they got their information, but Hot VWs Magazine is doing a "mileage motor" (been doing it for two years now) and they said that for mileage, you want your engine to be as square as you can make it. So they went considerably bigger than stock, geared down a bit, added a few other changes and have gotten a reliable 38mpg in a car that used to get 29 before the engine work.
So, square it up.