zamora7

iTrader: (4)

Simple question, can it be done? I have the pigtail for it, but I don't know how to wire it out if it's even possible, or does it need the pcm to run it? I also have an older alternator but no bracket or ways to make one.

BP Automotive

iTrader: (3)

You can solder a resistor inline to make it work.

We also sell the pigtail with the resistor already soldered in and several feet of wire for routing it through your vehicle. The price for that is $15 if you so choose to go that route.

zamora7

iTrader: (4)

Can you give me a little more details? As in where it has to be wired to. Wiring kicks my *** lol.

Thanks for the quick reply

BP Automotive

iTrader: (3)

I added a pic of what we have.

If you search the forum there is a diagram somewhere in this forum, I dont recommend the tape on the wire in the diagram picture though.

zamora7

iTrader: (4)

Cool, might be dumb question, so what exactly does the resistor do?

1981TA

iTrader: (7)

The resistor keeps your car's harness from delivering too much voltage to the alternator's regulator, which would in turn "instruct" the alternator to generate too much voltage to the car. The end result of this is that the alternator usually burns up in a short time. It also can cook your battery.

zamora7

iTrader: (4)

Thanks for the info

Pop N Wood

iTrader: (1)

If you hook it to the charge light in your dash you can delete the resistor. has to be a bulb type light and not an LED. That way you get to keep the idiot light.

82 ls1 cutlass

What size resistor is it?

1981TA

iTrader: (7)

470 ohm.

dogsballs

i just did this in my ls drag car. my alt had 2 wires in plug, white which loops back to the main terminal with big feed to battery/starter; and brown which goes to the dash with small globe (similar to autometer light) which is fed power on ignition.

i run an engine plate but i utilise the two top holes for normal alt bracket, but made my own spacers and link bar, then actually use two sail shade stainless adjustors. bought a 790mm 4 rib pulley from local parts store.

jays78

I am in the middle of installing a ls1 from a 2002 f body into a 78 corvette, I need one of those resistor pigtails you have.

Is it possible to use my factory alternator gauge?

Forgot to mention, It has a carb conversion.

Pop N Wood

iTrader: (1)

If your factory gauge has a charge light you can use that in place of the resistor. Just run the wire straight to the bulb in the idiot light. The bulb takes the place of the resistor. The other side of the bulb needs to hook to switched 12V.