Anyone have experience with high output alternators?

[rommelrommel]

You can fit a group 31 in the factory spot with no mods, and a pair of 31's should handle a lot of winching.

 

[bryanl]

many times they're boosted at increased RPM's, so if you're sitting in a parking lot blasting your stereo at idle, you're not going to see any benefits.

The output at idle can actually be lower than stock, enough to make the alternator light flicker. Many years ago I bought a kit to convert my regular alternator to high output, not because I needed more amps but because the front bearing started to wine, and the kit was on close-out for just $15 and included a bearing and new electronics. The infrequent idle flicker was solved by installing a smaller pulley made for police cruisers.

 

[bruceb]

Both of these sites have top quality alternators and starters, which are better then OEM units.

http://www.mralternator.com/

http://www.motorcityreman.com/