Hey guys, I'm an S197 guy myself, but have a friend with a '66 289 Coupe. He says that he thinks he needs a larger alternator. His problem is that when the car is running with any electrical components on, and then the wipers are turned on that there is a noticeable drain in power.

He said that he once saw oh Horsepower TV or something of the sort, that there was a larger than stock alternator available for his model year. He couldn't remember any of the details though.

Anyone have any good advice I can give him on this.

Thanks

 

There a plenty of different amp alternators for old Stangs.

Stock for a 1st gen with a 289 is like 60 amps, I think... I'd go at least 100.

 

Thanks! Any brand or vendor that you would recommend?

 

yeah...I think I need to go this route too. I have an ammeter in my car...and with every electrical device I turn on....lights, fan, wipers, heater, make that needle jump further and further to the left. draws a lot of power from my alternator.

 

No one in particular... just order a Summit Racing catalog, go to their website, or better yet, drive to ANY local car parts store (NAPA, Kragen/Checker/Shmucks, CarQuest, AutoZone, etc) and ask for alternators for 1st gen, small-block Mustangs.

 

Cool, thanks for the help.

 

Not a problem. I'm looking and small-block first gen later this year.

It'd make a great first REAL car for me. Sorry, Z-formerly-owned-by-dad and old Dodge motorhome.

 

I have a power master one wire on my car works great and looks cool and no more voltage regulator

 

Early Mustang stock alternator base rating was 38 amp, with options of 45, 55 and 60 amp.

Like StreetDemon, I went to a 100 amp one-wire 3G alternator on my '67 coupe. It really provides the power I wanted for direct headlamp lighting, horn activation and other various electrical options.

I went to eBay and did a search for: "mustang 3g alternator". That search will return a pile of alternators of varying size: 100 to 270 amp!

Here's a link to one example.

http://www.ebay.com/itm/1-WIRE-FORD-...sories&vxp=mtr

I bought one just like this. Good luck!