Replacement Alternator AMP Max

[Tyron68]

I do have another question related to my alternator. I had an aftermarket, small amp/subwoofer installed last year. I noticed that they connected a wire from the battery to the bulk head connector AND ran a wire from the alternator stud to the bulkhead as well. My questions is why a wire is ran from the alternator to the bulkhead connector? I took it off. Thoughts on this?

 

[Tyron68]

Good to read the relay kit helped.

The increase in alternator amps really isn't for the max output. Usually the low rpm output levels are increased. As others have mentioned, you want an alternator that puts out adequate energy at idle to allow all the requested power to be satisfied, WITHOUT having to backfeed/draw from the battery. That is when the bulkhead starts to fry.

I like the densos off a late 80's toyota PU/4runner. They don't look original, they do put out good power at idle speeds. Changing the alternator pulley can help low speed as well. Make sure you don't exceed the max rpm and over rev it, same as an engine limit.

So far so good on the amps at idle. It’s a 65/35 max amp alternator. I drove the car yesterday evening and ran with AC on, stereo on and headlights on and no issue. This is the 4th time I’ve done this since I got everything put back together. Again, wanted to be cautious in the alt I purchased with not over doing the amperage as I don’t want to have to mess with wiring upgrades, etc..The headlamp relay hardness was very mindless install, except I didn’t have enough room under my battery tray so I mounted the stuff on the sidewall just in front of battery tray.

 

[Tyron68]

well, he corrected me the Idle spell ( even it was a typo mistake, but who cares ). Maybe that could be rated as "productive add"? LOL.

Still with that, I won't correct him how "Ccompressor or rhe Sundun" phrase must be spell it... oooooops


@Tyron68 sorry for all this colateral discussion half-higjhacking your thread, but it is what it is with this guy when begins to post replies without any respect.

All good!

 

[Nacho-RT74]

So far so good on the amps at idle. It’s a 65/35 max amp alternator.

OH! SURPRISE! AROUND HALF OF THE MAX OUTPUT AT IDLE… LOL

(Don’t let it know to nobody here)

 

[Tyron68]

OH! SURPRISE! AROUND HALF OF THE MAX OUTPUT AT IDLE… LOL

(Don’t let it know to nobody here)

I won’t lol

 

[Sinitro]

Needing to replace my alternator (68 charger 440, added AC). The alternator that was on the car had part # 3874271 on back. What is the biggest amp alternator I can go with without upgrading wiring?

Check out the Power Master alternators, they have a 95Amp with single or double pulley that bolts right up like the original.
Made in the USA.

Just my $0.02...