What kind of alt did you use, and how does it wire up?

Any pictures you have would be very useful to me.

Nick

I did it but don't have a clue as to what the alternator fit. I went to NAPA and told them that I wanted a GM 1 wire and they got me one out. Ran the battery terminal on the starter relay. Modified the mounting brackets slightly.

Talk to Mark Hamilton at MAD Enterprises. 559-339-7128. This guy forgot more than I'll ever know about electrical systems. He's very easy to talk to.

Dunno about small block applications, But this is just dang near a bolt on for a big block. All that is required is a 3 inch spacer between the alternator and head,And in my case a 2 inch shorter belt. Fits right on OE brackets with no hacking and comes with a V-belt pulley on it

OE application is a 89 Caddy with a 5 liter, It is a CS style 105 amp...I think it was like 80 bucks at Autozone.

Its not a 1 wire as I don`t personally care for 1 wires...but that`s just me...its a easy wiring job to do regardless.


Rick

I run the same one as blown71x...

I'm running a three wire 100amp GM alternator built by HITACHI.





Wire connections......


Mounting - I dropped the alternator lower by using the bottom hole of the cylinder head.


Mounting connection from bottom of alternator.


Are you keeping your battery in the "stock" location or moving it to the trunk?......this does make a difference in the wire guage size to use.

The upper and lower mounting brackets where bought at Osh for about $20 dollars.

The battery is staying in the engine bay for now.

Blown71GTX, how do you wire the later style alternator? That's the one with the 4 wire plug on it, right?

Thanks, and thanks for the pictures guys!

Nick,
Lights dim at idle...

Yes Nick its the 4 pin plug one, Below is how I wired mine. Don`t laugh....I`m no artist

There may be a person or 2 that will have a cow because of the sense (S) wire looped around to the positive stud because some web site says it`s not the way to do it.....Well thats a crock....it works fine and was even done that way in a OEM application at one time.

I have above average current requirements in my car due the the electronics on it...this has just been a flawless setup.




Rick

Or if you are mechanical enough or want the factory look, go here and convert your old one: http://www.alternatorparts.com/chrysler_alt_repair_upgrade_kits.htm

Why use a GM alternator? I dropped in a 120 amp alternator from a Dodge van. It bolted up easily and works with the existing electrical system. I did upgrade the power lead off the alternator but that should be done with ANY high amp alternator.

On the Hot Rod Power Tour I was idling for extended periods with the stereo, 1000w amp, headlights, wipers, electrical fuel pump, and both electric fans all sucking amps. The alternator showed no signs of fatigue carrying that load at idle speed.
Can't complain when you consider that it was a $20 salvage yard alternator.

What year van?

I think it was a 92. Before the body change. It even had twin V belts.

This is good stuff for winter garage work. Thanks

any problem wiring it i have a 69 gtx with air?

I used the stock wiring with the exception of a larger lead to handle the current flow of the new alternator.
The factory wire was built for 30 amps. It won't like the load of 100+ when you get a heavy demand on the alt.

Should work fine with air.

Did you have to change any of your wiring to the voltage reg ?-

Feets, whats it look like?

why do u have to use a resistor on the GM alt? do u have to get it at radio shack?

where did u get the cool chrome Hitachi alt, what did it come off of and how much?

Okay, bought the GM one last night at work, just because they are more readily available than the Denso ones, and cheaper. Part # is 1345-6-7, fits Chevy pickups, 1987-1996, so every parts store has them. Just had to swap the pulley for a v-belt one.

Blown 71, where did you T into the stock field and amp gauge wires? I need to take out the stock regulator and wiring.

Also, hooking the ammeter wire right to the charge post won't fry the wires or the ammeter inside?? I don't think I want 100a going through my dashboard!

Thanks for your help!
Nick,
Will wire it up Friday...