LS1 Fuel Pump Fuse
Thread Starter
Teching In
Joined: Oct 2011
Posts: 26
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From: PA
LS1 Fuel Pump Fuse '69 vette with LS1/T56
I was told I needed to find my own constant 12v source for the fuel pump to the relay wiring.
1. Where is an easy place I can steal 12v from other than running a new wire from the battery/starter? Or is that the best place?
2. I was told it should probably be fused at whatever the LS1(stock in tank pump) normally draws. Was wondering what that amperage is and what type of fuse I should have in line?
I'm back from harvest and determined to get this thing started in the next few weeks!
I was told I needed to find my own constant 12v source for the fuel pump to the relay wiring.
1. Where is an easy place I can steal 12v from other than running a new wire from the battery/starter? Or is that the best place?
2. I was told it should probably be fused at whatever the LS1(stock in tank pump) normally draws. Was wondering what that amperage is and what type of fuse I should have in line?
I'm back from harvest and determined to get this thing started in the next few weeks!
You can take the power from any constant 12+v location. It is just what you were thinking, some places are better thean others.
I usually connect it to my alternator, that will give you the Highest voltage of any other location.
2nd best would be the Battery directly. I beleive that your Horn Relay is connected directly to the Battery and also what your alternator connect to, so the Horn Relay is another good source. Also the interior is most likely getting Battery power from the horn relay location.
I would put at lease a 30amp or 40amp fuse, can depend on what your pump will pull.
BC
I usually connect it to my alternator, that will give you the Highest voltage of any other location.
2nd best would be the Battery directly. I beleive that your Horn Relay is connected directly to the Battery and also what your alternator connect to, so the Horn Relay is another good source. Also the interior is most likely getting Battery power from the horn relay location.
I would put at lease a 30amp or 40amp fuse, can depend on what your pump will pull.
BC
I installed a distribution block on the firewall and tied my alternator, battery and any additional items that needed a +12v battery source. For the fuse, you really need to find out what pump you have and put the correct size as larger is not better in regards to protecting circuits.
Thread Starter
Teching In
Joined: Oct 2011
Posts: 26
Likes: 0
From: PA
I installed a distribution block on the firewall and tied my alternator, battery and any additional items that needed a +12v battery source. For the fuse, you really need to find out what pump you have and put the correct size as larger is not better in regards to protecting circuits.
I was hoping someone on here would know what kind of load it has.
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Thread Starter
Teching In
Joined: Oct 2011
Posts: 26
Likes: 0
From: PA
Hopefully it's not the BATT terminal as i probably can't use that for both the fuel pump and ignition...
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