Oil Pressure Kill Switch

[censley]

Hey Fellas,

I'm about to drop my performance engine in my 442 but I need to install a kill switch to build up enough oil pressure before I start the engine. I have no clue how to do this or where/what type of switch to get
Please advise...

Thanks!!

 

[RITTER]

Build up oil pressure before you start it up :?: Are you talking about priming your engine or actually just build the pressure right before you fire the engine :?:

Are you running some type of dry sump system :?:

 

[Ringers]

If you are talking about a killswitch that shuts the engine down,in the event of an oil pressure loss, they are pretty simple. You need a Hobbs switch, readlily available from NAPA. they are adjustable. There's an socket head under the rubber plug. It is a normally open switch that closes on a rise. You run the main power wire to your ignition through it. If you are running an MSD 6 or 7 box, run the switched power through it, not the battery power. They don't handle much in the way of amperage. Also, you will have a more difficult time starting, as you will have to crank for oil pressure before you get ignition. I paralleled an ignition feed to my starter solenoid, so I would fire immediatly. If you do this, you need to add diodes, to keep from back feeding your starter after firing. Sounds complicated and it is, but it's worth it. I was racing and tossed my dry sump belt. My motor shuts down at 40 PSI of oil pressure. I was spinning around 7000 RPM, you aren't looking at all of your gauges when you are driving competively and oil pressure goes away fast. Saved my 588 in the boat.

 

[censley]

Yeah, the engine has no oil in it. I need to build up oil pressure before starting it.

 

[MadMax]

I may be wrong here, but i'm fairly certain that there is no "switch" to prime the oil before starting it. I use an old distributor and stick it down in the hole and use a drill to prime the oil pump until oil comes from the pushrods and goes back into the valley. But then again i may not be understanding the question...

 

[RITTER]

To prime the oil system before intial start-up, you need to buy or borrow a Chevy oil priming tool. It just goes on your oil pump pushrod and you spin it with a drill. As soon as you have movement on your oil pressure guage, you're good to go

http://www.youtube.com/watch?v=tOYLlr8uQ8k