Ed and Bill,
Just some ponderings as I progress along my way of
understanding different carb developments.
I notice with a slide carb ( round on round
opening) you get more of a straight line function of air to fuel ratio as
it progressively opens.
With a flat slide on round opening you get
'diminishing returns' ( my term) as you get past half way.
I notice that some carbs have eggs shaped openings,
I guess that's to even out the percentage of fuel/air mix to percentage of
opening and to compensate for the enrichening at higher RPM i.e. more air to
fuel at higher rpm at the fatter end (top).
I was wondering what was wrong with a square carb -
not completely square mind you, but with some roundness to corners say 1/2
diameter.
Wouldn't this provide for a more linier opening to
fuel/ air ratio mix OR does this pose other problems such as air flow and drag/
turbulence?
George (down under)
|