[RocktimusPryme]

Sanity Check me here.

So one of my projects has an external wet sump oiling system. Meaning the Oil is still stored in a pan below the block like normal, but the pump is an external cog belt-driven job. Probably not a decision I would have made, I took over someone elses project. But they spent like $2000 on really nice parts between the pan and pump and all so we are rolling with it.

I recently first fired it, everything works. Roared right to life and surprised me on camera, honestly, but I am terrified of the prospect of that belt breaking or otherwise coming off and killing the engine because it doesnt have anything pumping oil. So I want to wire in a low PSi (Like 2 or 5 PSI) cutoff switch that will kill the engine if there is no oil pressure.

Something like this.
https://www.stewartwarner.com/produc...witch-sw76061/

Almost all of these switches are marketed as fuel pump cutoff switches. (See attachment) But it seems to me that if the engine was allowed to run until all the fuel in the bowls on a holley were empty that would still be plenty of time to hurt an engine with no Oil Pressure.

So couldnt I just use one of these switches. Where the Common (C) port on the switch going to the ignition coil, Battery to Normally Closed (N) and Keyed Power to the Normally Open (NO) to kill spark in a no pressure event vs kiling the fuel pump?

I might have to hold the key on crank for a touch longer to build pressure before it starts, but thats fine.