Stock alt @ idle held a higher voltage then my rebuilt alternator.....

[JEFFYBOI]

Ok so my stock alternator was only 80 amps. at idle (800-900rpms) it always would hold a voltage of 14+volts on my Stinger volt meter ( wired @ the amp ). I had a local guy put a 170 amp stator, new brushes, and bearings and he also cleaned the case up. He bench tested 148 amps @1100 rpms but at idle on this one im only holding about 12.5 maybe 12.8V. I know its holding way better then stock at higher rpms because I set my HU and gains with the DD1, @ full tilt holds 13.5V + @ about 1200 rpm. It just seems odd my voltage is so low at idle now. Anyone have any ideas?

[OrionStang]

LOL

Get what you pay for.

If you want an HO alt, buy one.

[rockFord_Expedition]

Yup. Sounds about right. Sounds like the alternator doesn't even kick on until you touch the gas pedal.

DC power.

Mechman.

Singer.

[gckless]

That's the trade off you get with the crap stock rebuilt ones. Get a better one.

[rockFord_Expedition]

Nvm

[Guest]

bigger internals in stock casing = shit idle output.

[xxgokouxx]

What Kranny said.

If you don't want to purchase the higher end alternators, you can slap on a smaller pulley, get a smaller belt for grip, and you should be fine so long as you don't go redlining it all day.

GL

[smashedz28]

Had terrible results with an old alt that was rebuilt. Now I have a dc power alternator.

[JEFFYBOI]

LOL

Get what you pay for.

If you want an HO alt, buy one.

I contacted Mechman and Stinger they weren't able to help me... Its better then stock, it should be a upgrade.

[rockFord_Expedition]

DC alts ftmfcsdltfw