LT1 Alternator help - LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums

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post #1 of 6 (permalink) Old 11-13-2012, 06:27 PM Thread Starter
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LT1 Alternator help

Putting a LT1 in a Nova. Can any one tell me if all I need is the one wire or the three wire plug for the Alternator? Does it need a inline resistor wire? The Alternator is a CS144 140 amp.Thanks for your help.

Robert
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post #2 of 6 (permalink) Old 11-13-2012, 08:06 PM
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Lt1 alt from factory is 2 wire. The main battery wire and a smaller wire that goes to the charge light but is very important to have as it provides the exciter current to the voltage regulator, without which the alt won't charge. The wire has a 470 ohm resistor in the circuit. The exciter wire goes to terminal L of alt. Terminals S & F are not used
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post #3 of 6 (permalink) Old 11-13-2012, 10:22 PM Thread Starter
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So if I put a 470 ohm resistor to a 12 switched power source I should be good? I'm useing a aftermarket gauge system insted of the factory idiot light. Thanks for your comments.

Robert
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post #4 of 6 (permalink) Old 11-13-2012, 11:21 PM
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post #5 of 6 (permalink) Old 11-15-2012, 05:16 PM Thread Starter
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I will try that , thank you.

Robert
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post #6 of 6 (permalink) Old 11-15-2012, 06:51 PM
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That'll do it...

1995 Camaro Z-28, M6, 396 stroker, Scat forged 3.875" crank, Scat Ultra Q-Lite 6" H-beams, Icon forged pistons (4.030"), splayed 4 bolt w/ARP studs, 12.25:1, AFR 210 heads (2.08"/1.6", 58cc), Comp Ultra Pro Magnum XD 1.7:1 rockers, GM847 cam (234/242 .611"/.632"), Edelbrock LT4 air-gap intake, Spec Stage 3+ clutch, Fidanza aluminum flywheel, 24x conversion, 0411 PCM, TPIS 58mm, Bosch III 42# injectors, Aeromotive 340, Kook's stepped LT's, Kook's custom stainless 3-1/2" merge ORY, Magnaflow
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