Just upgraded the alternator in my 91 LX to a 140amp. Do my volts look ok? Here are the details of the car
1991 LX.
Underdrive Crank and Water pump pullies
Stock Alternator pulley
Readings taken with Digital Volt Meter
Warm Idle 750 rpm with stock tach.
Car Off, Key Off = 12.32v
Car Off, Key On = 11.96v
Idle, all Acc. off = 14.0v at start up, drop to 13.45v after a min.
Idle + Headlights = 12.4v
Idle + Max A/C = 11.85v
I know the 11.85v is a little low and I attribute that to the UD Pullies. Should I invest in an alternator OD pulley? Go back to the stock crank pulley? The only other big draw item I plan on adding later is an electric fan. So wadda ya think? Thanks!
1991 LX.
Underdrive Crank and Water pump pullies
Stock Alternator pulley
Readings taken with Digital Volt Meter
Warm Idle 750 rpm with stock tach.
Car Off, Key Off = 12.32v
Car Off, Key On = 11.96v
Idle, all Acc. off = 14.0v at start up, drop to 13.45v after a min.
Idle + Headlights = 12.4v
Idle + Max A/C = 11.85v
I know the 11.85v is a little low and I attribute that to the UD Pullies. Should I invest in an alternator OD pulley? Go back to the stock crank pulley? The only other big draw item I plan on adding later is an electric fan. So wadda ya think? Thanks!