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oil pressure cut off switch
#1476366
07/30/13 08:00 AM
07/30/13 08:00 AM
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Joined: Mar 2005
Posts: 525
Can , Nova Scotia , Cape Breto...
caper
OP
mopar
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OP
mopar
Joined: Mar 2005
Posts: 525
Can , Nova Scotia , Cape Breto...
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A friend of mine is looking for a switch to cut off the ignition when oil pressure is less than 20 lbs. What are you using? part #, and where to get it?
thanks
New best 10.18 , 1.40 60 ft 496 Scott Brown built, street driven 3600 lbs,654 hp , 653 ft tq
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Re: oil pressure cut off switch
[Re: caper]
#1476367
07/30/13 04:10 PM
07/30/13 04:10 PM
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Joined: Jan 2003
Posts: 5,494
So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,494
So Cal
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Quote:
A friend of mine is looking for a switch to cut off the ignition when oil pressure is less than 20 lbs. What are you using? part #, and where to get it?
thanks
Here you go, available from Jegs..
Oil Pressure Safety Switch
555-11200
1/8" NPT
Shuts off when under 5 psi
$21.99
http://www.jegs.com/p/JEGS/JEGS-Oil-Pressure-Safety-Switch/934233/10002/-1
Just my $0.02.... 
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Re: oil pressure cut off switch
[Re: d7cook]
#1476369
07/30/13 04:51 PM
07/30/13 04:51 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
A friend of mine is looking for a switch to cut off the ignition when oil pressure is less than 20 lbs. What are you using? part #, and where to get it?
thanks
If you wire it into the ignition you'll have to flip a switch every time to start it and flip it back so it works.
I just wire mine into the shift light.
You can still crank the engine with it... it just
wont fire till it reaches the kill pressure
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Re: oil pressure cut off switch
[Re: d7cook]
#1476371
07/31/13 09:28 PM
07/31/13 09:28 PM
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Joined: Nov 2007
Posts: 174
Indiana
Scott58
member
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member
Joined: Nov 2007
Posts: 174
Indiana
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I use this one: http://www.summitracing.com/parts/mrg-7872/overview/It's a three prong setup NO/NC that trips at 15psi. You wire your start circuit to the NC side so the pump runs immediately while cranking and fills the carb(s), the NO side to the ignition circuit for the safety feature while running, and the output to the pump or pump relay. There is a wiring diagram that shows this. Be sure that the switch has enough current capacity to run your pump if you don't use a relay. I've run the Mallory 140 on my RoadRunner directly through the switch for years with no problem, but a bigger pump would need a relay. Works great and gives a little more protection that a 5 psi switch. Scott
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