Alternator losing voltage with high boost
#1
TECH Regular
Thread Starter
Alternator losing voltage with high boost
I keep getting voltage drops from my alternator when I have my truck making a little steam. Every time it seems to be right around 5800rpm it drops to about 12.0V. In turn it is dropping the voltage to my Meth system and it goes lean for about 1sec until the shift. I tried a new alternator because I was thinking the brushes were worn. And it did seem to clear up. The new 145amp alternator now has about 1200 miles on it and just had the same issue at the track last weekend. Had the truck turned up to about 18psi. Doesn't seem to drop voltage under 15psi. I don't see alot of belt dust around the alternator like it could be slipping. Doesn't mean that is not it.
Before I go buy another alternator and a gatorback belt. Any thoughts? Ideas? Both Alternators were acdelco units.
Before I go buy another alternator and a gatorback belt. Any thoughts? Ideas? Both Alternators were acdelco units.
#3
TECH Regular
Thread Starter
You spin your motor way above 6k don't you? Have you ever had Alt issues with higher rpm?
#6
TECH Regular
Thread Starter
Ok. I'll go buy another new Alternator.
What is the best belt out there to get anymore? I always just buy a gates belt. Goodyear Gatorback worth the money?
What is the best belt out there to get anymore? I always just buy a gates belt. Goodyear Gatorback worth the money?
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#8
TECH Regular
Thread Starter
Ill look it up. But isn’t it 4 wires? 3 grounds(battery, alt. bracket and chassis grounds) and the alternator to battery power wire?