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DaveWharran · 01-16-07, 08:51 PM

I started out with an 80 amp Ford alternator and quickly found out it was too small. The radiator and oil cooler fans are BIG users of power. Combined with the EFI, 4 coils, fuel pumps, etc. the 80 amp unit failed. Power usage was tripping a 50 amp breaker.
I replaced it with a 140 amp single wire Powermaster. It does fine but requires a quality vbelt if you are using vbelts.
Also ran a second 50 amp feed to the dash area dedicated to the fans.

Dave

01-16-07, 08:51 PM	#5 (permalink)
DaveWharran 2 Tenths Join Date: Sep 2001 GT40: Clearville, PA Posts: 267 Rep Power: 10	Re: What alternator to use I started out with an 80 amp Ford alternator and quickly found out it was too small. The radiator and oil cooler fans are BIG users of power. Combined with the EFI, 4 coils, fuel pumps, etc. the 80 amp unit failed. Power usage was tripping a 50 amp breaker. I replaced it with a 140 amp single wire Powermaster. It does fine but requires a quality vbelt if you are using vbelts. Also ran a second 50 amp feed to the dash area dedicated to the fans. Dave __________________ Dave Wharran ERA GT 2072 - 351C,EFI,direct fired,ZF-2