alternator

[austyfrosty]

i was searching the advance auto parts website the other day and i noticed the festiva alt. was a 50 amp. then i checked on the alt. for a mazda 323 and it was a 65 amp. so my question is could i buy the 323 alt and put it in my festiva? it is basically the same engine i thought but bigger. let me know what u think. also it was a 90 323 into a 90 festiva.
thanks

[mattswabb]

I think on the BP and BPT I used the bigger alternators from the donated engines.

[elcamino1]

Yes they will interchange,I have a 70amp off of a protege

[austyfrosty]

what year and everything is the 70 amp from? that would be even better than the 65 amp. thanks

[Bowls]

You'll lose horsepower if your not running the bigger engine. a 100amp takes 5 horsepower. so you'll be losing about less than 1 horse, but i'd rather keep the horse, but thats just me.

[elcamino1]

You'll lose horsepower if your not running the bigger engine. a 100amp takes 5 horsepower. so you'll be losing about less than 1 horse, but i'd rather keep the horse, but thats just me.

Who runs around needing 100amp all the time.
Alternator only puts out what you need at the time.
Built in regulator.

[elcamino1]

what year and everything is the 70 amp from? that would be even better than the 65 amp. thanks

Most mazda cars 88 thru 96 with 4cly engines use the same alternator just higher or lower amperage.