Do any of you know where or know of a 3g 6 rib alternator pulley that is 2.75 inches . I know a 94-95 is 2 1/8 . 96-98 v6 is 2.5 inches . I’m looking for something that is 2.75 .
I am looking to put my custom asp 8 inch blower pulley with my 6 inch acc drive to get my water pump moving more water at idle . It will be slightly over spun from a 93 cobra After doing all the math . Where as right now it’s spinning slower then a stock 5.0 car or a 93 cobra car with the 93 water pump pulley and a 4.6 under driven acc drive blower pulley at idle .
The alternator must be addressed as well because at 7200rpm if I didn’t change the pulley it will be on fire at close to 20k rpm with the current 94-95 pulley . If i go to the 2.5inch alternator pulley it’s still a little higher then I’d like at 17,280 . For the split seconds it would live there I don’t think it will hurt it but I’d rather be down around 15k rpm at max rpm .
So that leaves the question of does anyone know if one exists ?
In case anyone was curious . They say are 16k is the limit for failure on the alternator .
Water pump and alternator speeds
4.75inch stock w/p
4 inches 93 cobra
5.2 inch crank pulley cobra
4.6 diameter on Vortech ( 8 inch blower)
4.75 diameter on Vortech (6.87 blower )
6 inch stock mustang
1000 rpm idle Speed
Water pump Speed
Stock 1263 rpm
Cobra 1300 rpm
4.6inch crank 1150 rpm / 6.0 crank 1470rpm
4.75 crank - 1163rpm
5800 rpm
Water pump speed
Stock 7326
Cobra 7540
4.6 inch crank 6669/ 6.0 crank -8700
4.75 - 6887
7000rpm
Water pump speed
Stock 8842 Rpm
Cobra 9100 rpm
4.6 drive -8049 Rpm / 6 inch drive 10,500 rpm
4.75 drive - 8312 rpm
Alternator Speeds
My car 2 1/8 Pulley ( stock 94-95 3g)
2.5 - 96-98 v6 3g alternator pulley
4.6 Crank at 6800 rpm = 14,685 rpm
6.0 Crank at 6800 rpm = 19,154 rpm
4.6 Crank at 980 rpm= 2,116 rpm
6.0 Crank at 980rpm =2,760 rpm
2.5 alt pulley -
4.6 Crank / 6800 rpm = 12411 rpm
6.0 Crank /6800 rpm =16,320 rpm
4.6 crank / idle 980rpm = 1803 rpm
6.0crank / idle 980rpm = 2352 rpm
2.75 alt pulley
4.6 crank /6800 rpm =11,374 rpm
6.0 crank /6800 rpm =14,836 rpm
4.6 crank / idle980rpm =1,683 rpm
6.0 crank / idle 980 rpm =2,138 rpm
I am looking to put my custom asp 8 inch blower pulley with my 6 inch acc drive to get my water pump moving more water at idle . It will be slightly over spun from a 93 cobra After doing all the math . Where as right now it’s spinning slower then a stock 5.0 car or a 93 cobra car with the 93 water pump pulley and a 4.6 under driven acc drive blower pulley at idle .
The alternator must be addressed as well because at 7200rpm if I didn’t change the pulley it will be on fire at close to 20k rpm with the current 94-95 pulley . If i go to the 2.5inch alternator pulley it’s still a little higher then I’d like at 17,280 . For the split seconds it would live there I don’t think it will hurt it but I’d rather be down around 15k rpm at max rpm .
So that leaves the question of does anyone know if one exists ?
In case anyone was curious . They say are 16k is the limit for failure on the alternator .
Water pump and alternator speeds
4.75inch stock w/p
4 inches 93 cobra
5.2 inch crank pulley cobra
4.6 diameter on Vortech ( 8 inch blower)
4.75 diameter on Vortech (6.87 blower )
6 inch stock mustang
1000 rpm idle Speed
Water pump Speed
Stock 1263 rpm
Cobra 1300 rpm
4.6inch crank 1150 rpm / 6.0 crank 1470rpm
4.75 crank - 1163rpm
5800 rpm
Water pump speed
Stock 7326
Cobra 7540
4.6 inch crank 6669/ 6.0 crank -8700
4.75 - 6887
7000rpm
Water pump speed
Stock 8842 Rpm
Cobra 9100 rpm
4.6 drive -8049 Rpm / 6 inch drive 10,500 rpm
4.75 drive - 8312 rpm
Alternator Speeds
My car 2 1/8 Pulley ( stock 94-95 3g)
2.5 - 96-98 v6 3g alternator pulley
4.6 Crank at 6800 rpm = 14,685 rpm
6.0 Crank at 6800 rpm = 19,154 rpm
4.6 Crank at 980 rpm= 2,116 rpm
6.0 Crank at 980rpm =2,760 rpm
2.5 alt pulley -
4.6 Crank / 6800 rpm = 12411 rpm
6.0 Crank /6800 rpm =16,320 rpm
4.6 crank / idle 980rpm = 1803 rpm
6.0crank / idle 980rpm = 2352 rpm
2.75 alt pulley
4.6 crank /6800 rpm =11,374 rpm
6.0 crank /6800 rpm =14,836 rpm
4.6 crank / idle980rpm =1,683 rpm
6.0 crank / idle 980 rpm =2,138 rpm
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