[Formulajones]

Originally Posted by jhein

So with the oil pressure safety switch, I assume cranking will give you enough oil pressure to activate the pump so it will start right up.

If you don't have any kind of shut off system and you have the ignition on, the pump turns on, then what? The pump just runs and floods the carb?

It doesn't quite work that way.
Cranking to get oil pressure to activate the pump will take just as long to start as a mechanical pump deal filling the carb.
What the idea of those switches assume is that there is already fuel in the carb, as there should be, don't know why you guys are going dry but that's a different problem. Anyway with fuel in the carb and in the squirter circuit, the car will fire off on that, it doesn't need fuel pressure, and once it fires off, oil pressure builds and turns on the pump. That's how they typically work.

As far as the pump running when you turn the key on, it doesn't flood the carb. If it is you have a needle and seat problem, again a different issue.