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He has electic water pump, electic fan , electric fuel pump and a 7 MSD that likes lots of voltage. he has a deep cycle battery also.
Them 7 MSD's are hungrey heffers when it comes to power.
Derrick I run number #4 wire alt back to the trunk with my 120 amp denso (from mancini)
Thats why he should run a external reg... tap the
sense wire into the biggest draw item in the car to
get the highest voltage to the battery
The GM 3-wire alternator is internally regulated but has an external sensing line. These are the alternators I prefer because every parts store has them sitting on the shelf. Most people just jump the sensing line to the battery connection on the alternator but it should be routed to a more remote sensing point. These alternators also need a light bulb wired in for an Alternator warning light or they won't work correctly I believe. I like having an alternator warning light because if it comes on during a run I know I lost a belt.
1967 Coronet, 1989 Daytona tube chassis.
Former cars, 66 Charger, 67 R/T, 69 Coronet, 67 Dart GT.
-Banned for life from V8Buick.com-
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