Hobbs switch what type - Forums at Modded Mustangs
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post #1 of 7 Old August 17th, 2017, 09:21 PM Thread Starter
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Hobbs switch what type

I am going to be doing my fuel system next week. I want to run 2 of my fuel pumps on separate hobbs switches. One turning the first pump on at at 5psi and the other at 10psi. Do i need a normally closed switch or normally open.

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post #2 of 7 Old August 17th, 2017, 09:52 PM
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Normally open, think of a light switch in your house when the lights are off its a normally open or open circuit. When you turn the lights on it becomes a closed circuit. So if you want your pumps off until a certain psi you need a normally open
I'm assuming you have a 3 pump setup?

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post #3 of 7 Old August 18th, 2017, 05:16 AM Thread Starter
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That's what I was thinking but the more I thought about it the more I questioned it LOL. Yes I will be running 3 Walbro 392's.

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post #4 of 7 Old August 20th, 2017, 09:30 PM
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I buy my switches from Fore innovations, they are a little Pricy but they stock a quality switch.
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post #5 of 7 Old August 21st, 2017, 04:11 AM
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Quote:
Originally Posted by SSG Pate View Post
I buy my switches from Fore innovations, they are a little Pricy but they stock a quality switch.
Everything they make is top notch and the guys who work there will go above and beyond to help you out

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post #6 of 7 Old August 21st, 2017, 06:10 PM Thread Starter
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Quote:
Originally Posted by SSG Pate View Post
I buy my switches from Fore innovations, they are a little Pricy but they stock a quality switch.
I checked them out and also looked at a few others.do you think these will work
I like this one it's adjustable
https://m.summitracing.com/parts/icb-551855

And this one is a honeywell same part number as fore just doesn't have the harness

77030-00000050-01 - HONEYWELL - Pressure Switch, 1/8"-27 NPT, 4 psi, 6 psi, SPST-NO, Panel Mount, Screw | Newark element14

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post #7 of 7 Old August 21st, 2017, 08:15 PM
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Quote:
Originally Posted by Sonic 02 View Post
I checked them out and also looked at a few others.do you think these will work
I like this one it's adjustable
https://m.summitracing.com/parts/icb-551855

And this one is a honeywell same part number as fore just doesn't have the harness

77030-00000050-01 - HONEYWELL - Pressure Switch, 1/8"-27 NPT, 4 psi, 6 psi, SPST-NO, Panel Mount, Screw | Newark element14

Fore uses the Honeywell they are great quality.. Not to say any part wont eventually fail but they chose that brand for a reason.


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