Alternators!! what amp/watt is a stock alt.

[Bengali86]

Heys guys and gals

Question

How can you tell what amp/watt is your alternator? I have a 93 325is with A/C Power/heated seats, power windows/mirrors and a stock cd changer. i dont tknow what its wattage is, it is making a high pich whinning sound, so i bought a 105 amp alternator... Is getting a higher wattage alternator a good thing or bad thig? what could i expect from a higher wattage alternator? more/less ignition performance? will it effect the spark of my plugs? any info will be helpful


Thanks!
Ben

[dutchbmw]

It's better for supply the electrical power that is need, but it takes some extra HP from your engine. Mine is ~90 Amps I think.

[Furious]

there were three of them avalible for e36's , which car got which was a mystery to most people.

the most common ones out there are 80 amp, 90amp and 140amp