Been staring at the unit all day and I cannot figure this out
How does the fuel get from the injector past the butterfly and into the intake at idle when the butterfly is closed? Does it really hit the closed butterfly, bounce back up and into the idle bypass area? Am I missing something here?
I'll bet the throttle plate is not perfectly closed, and sucking the fuel through the wee gap helps to further atomize the fuel. The air valve should provide enough additional air to let the engine idle.
G
Right, the air picks up speed around the plates and this helps vaporize the fuel. I've seen some attempts to measure the fuel distribution on TBIs that inject fuel downstream of the throttle blades and it's not pretty.
Cool. I am overthinking things again. I have no problem with that
I want some multi-coloured felts to doodle art that TBI picture. Is that bad?
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