95batmobile

iTrader: (2)

Hey guys i am looking for a wiring harness for my pump... im thinking about calling sts about what they have but i know their prices are high.. im getting a high quality pump to replace my cheap one but i don't wanna mess up the pump or the flow of the pump with my own wiring..
thanks
justin

95batmobile

iTrader: (2)

bump bumpyy

95batmobile

iTrader: (2)

bumppy

1BADAZZSS

iTrader: (23)

Last time I heard sts were selling there harness's for around $100 but that's been couple years ago.
But can't go wrong with a 30amp relay, in line fuse and some good gauge wire.

JAX04

iTrader: (17)

Its only two wires bud. IIRC, its red and black..... Cant mess that up. Red is power, black is ground. As Badazzss said, run a 4 prong relay, and a fuse, all is good.

You'll have maybe 20 bucks in it, if that???

95batmobile

iTrader: (2)

i dont know what a 4 prong relay is or what it does lol right now i just have it wired up red and black wires thats it.. i didnt know if there was a more professional way to do it

JoshuaGrooms83

iTrader: (2)

im curios as well. whats the relay for exactly?

Cam72aro

iTrader: (28)

Old thread…. But a relay allows you to run a high amperage component without burning the switch up. Wire the switch to the relay, then the relay to component.

JoshuaGrooms83

iTrader: (2)

not as old as most i find lol

ok, got it.

so run from ignition "on" source(switch) > relay > 20AMP fuse > oil pump > Grounding source(circut comple). correct?

JoshuaGrooms83

iTrader: (2)

ok, alittle more clarity which way do i wire in the relay? im looking at a typical GM 4 prong relay, but not sure which way to run the circut.

JoshuaGrooms83

iTrader: (2)

FOUND A GREAT EXAMPLE. granted its a fuel pump but its pretty much the same idea.
http://www.enginebasics.com/Advanced...p%20relay.html
now i know how to wire a 4 prong relay to the oil pump and it explains it why it works. really cool actually

JoshuaGrooms83

iTrader: (2)

found a 4 prong relay and relay socket to make my wiring look more professional. looks like 16 gauge wire should suffice for power and ground supply wires

JoshuaGrooms83

iTrader: (2)

had another question on this, where should i have the oil pump wired to for a 12 volt source. The above link shows a wire going to the positive battery, but that would give a constant source obviously so i need a switched on location.
I was wondering if i should do the alternator but not sure. What else would be a good switch source so that the relay only gets voltage when the cars "on" and not constantly sucking up voltage.

JAX04

iTrader: (17)

4 prong relay,

Power from battery into it, out to the pump. Ground the relay, use the signal wire for the factory fuel pump to activate the relay, oil pump primes and runs with fuel pump.... Done

JoshuaGrooms83

iTrader: (2)

ah, ok and since the fuel pump is running off the racetronix hotwire kit, the stock power wire for the fuel pump should be ok

ibex37

iTrader: (6)

yeah it should work just check the wire with a voltage meter to verify you have a "switched" 12v source

JoshuaGrooms83

iTrader: (2)

was wondering since im here, i put a racetronics pump in and hotwire, can i some how wire the scavanger into the old fuel pump source? is so, how exactly

95bowtie

Just buy a jegs fuel pump relay harness and be done. 30 bucks I think

NemeSS

iTrader: (127)

Ive used that jegs one a few times. Works good

JoshuaGrooms83

iTrader: (2)

i already have a relay so that parts ok, im just wondering which wire to tap into from the "old" fuel pump power wire. i cant find my racetronix instruction s from when i did the wire and fuel pump install