 Anyone ever use the stock alternator without the relay board?, Racers? |
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| stugray |
 May 31 2013, 07:59 PM
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Advanced Member  Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None  |
I am guessing that someone else has tried this.
I have a stock alternator in my race car for now (upgrading to new 1-wire later). Relay board and entire harness is gone. I know that I need the external voltage regulator, so I decided I better figure out how to wire it up... It turns out that the plug from the Alt that goes to the relay board is exactly the same connector & pinout of the Voltage Regulator! So it can just plug right in... not so fast. For the alternator to startup/charge, it needs the voltage that is fed from the Alt light in the combo gauge. SO, can I just wire in a bulb from +12V and splice it into the D+ lead on that connector where it goes into the VR plug? Then the system should work exactly as before....?? Is the stock Alt bulb a special wattage? Stu |
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| stugray |
May 31 2013, 08:58 PM
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Advanced Member Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
Thanks for the responses so quick!
QUOTE i use super brite LEDS for my idiot lights so i did have to wire a little incandescent bulb for the alternator. the led didnt pull enuff load by itself. That is funny! I didnt want to complicate the question by asking: Ok, now, can I use a 12V LED instead of the stock idiot light ;-) How did you determine it would not work? I figured if it didnt work, I would just add a resistor across the LED to give it more current. Anyone know how much current the Alt field winding needs to work? Stu |
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| mrbubblehead |
May 31 2013, 09:00 PM
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#3
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Twodollardoug Group: Members Posts: 1,155 Joined: 17-December 10 From: calimesa ca. Member No.: 12,492 Region Association: Southern California |
QUOTE(stugray @ May 31 2013, 07:58 PM)  Thanks for the responses so quick! QUOTE i use super brite LEDS for my idiot lights so i did have to wire a little incandescent bulb for the alternator. the led didnt pull enuff load by itself. That is funny! I didnt want to complicate the question by asking: Ok, now, can I use a 12V LED instead of the stock idiot light ;-) How did you determine it would not work? I figured if it didnt work, I would just add a resistor across the LED to give it more current. Anyone know how much current the Alt field winding needs to work? Stu i just soldered 2 wires to the stock bulb and used it. |
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Posts in this topic
stugray Anyone ever use the stock alternator without the relay board? May 31 2013, 07:59 PM
McMark
Yup
Nope. May 31 2013, 08:38 PM
mrbubblehead
Yup
Nope.
:agree: i just plugged my VR in an... May 31 2013, 08:54 PM McMark Stock bulb is 2W May 31 2013, 09:12 PM Cap'n Krusty What's "upgrade" have to do with a s... May 31 2013, 10:17 PM stugray Cap'n
"upgrade" in the sense: use a... Jun 1 2013, 12:00 AM kg6dxn The lamp is required for 2 way current/voltage flo... Jun 1 2013, 07:24 AM stugray kg6dxn,
It is not an issue that the idiot light i... Jun 1 2013, 10:10 AM r_towle Fr a race car, invest in a new lightweight alterna... Jun 1 2013, 03:04 PM mrbubblehead stu, when you find a resistor that works, will you... Jun 1 2013, 06:54 PM stugray Well it works.
I used a 70 Ohm resistor ( actuall... Jun 23 2013, 12:34 PM |
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