alternators for dummies

[AusRs]

i tried the search and it reads like chinese to me
is there a direct bolt in (hi mount no a/c ) higher amperage alternater available ?
i will have to buy new and will need make and model if they are available !

[10secvega]

http://www.powermastermotorsports.com/

[zeke]

http://forums.h-body.org/viewtopic.php?t=19039

[HI WINDING MONZA]

www.Ebay.com search ''GM 100 amp alternators "
for" SI "alternators- simular to stock apperance and size . Doug in AZ

[SunbirdMan]

This looks like a good thread to hijack. I went to the junkyard and found a nice looking 12si alternator. i read somewhere on the internet (so it must be true) that if the rectifier fins are curved then its a 94 amp. It looks like its a direct bolt -in but there's one thing that has me wondering. On one of the 4 bolts that hold the thing together there's a small tag with the letter "N" stamped on it. Anyone got a clue why its there? Thanks.

[zeke]

i read somewhere on the internet (so it must be true) that if the rectifier fins are curved then its a 94 amp.

I believe u may have read that here: http://forums.h-body.org/viewtopic.php?t=20996 And it is true!

On one of the 4 bolts that hold the thing together there's a small tag with the letter "N" stamped on it. Anyone got a clue why its there? Thanks.

I've seen lots of tags/stickers on alternators over the years, usually just a rebuilders way of marking a unit.

[v8vega]

www.madelectrical.com is just super on this. Tells why 3 wire alternator is better than 1 wire. Tells of high power alternators. Tells of proper wiring systems in a manner anyone can understand.
Dennis

[acstestinc]

12SI alternator is a direct bolt in for stock 10SI style.

See my Modifications list in the Garage.

[HI WINDING MONZA]

Paul, is the case the same exact size as the 10SI? Doug in AZ

[acstestinc]

Exactly the same dimensions in every way

Even the pulley mine came with was the correct size.

I might try swapping the stock pulley over because it is deeper and the belt sits in it lower.

[HI WINDING MONZA]

Thanks , do you know what car- truck that alternator was stock on? My 32 amp is barely cutting now but when I start racing later in the season when it gets hotter and they shift to nights, I'll be in trouble. Doug in Az

[acstestinc]

This is what the AC-Delco site had for usage:


1987 BUICK ELECTRA ESTATE WAGON V8 5.0L 307cid GAS CARB N Engine VIN = Y
1987 BUICK LESABRE ESTATE WAGON V8 5.0L 307cid GAS CARB N Engine VIN = Y
1987 BUICK REGAL LIMITED V8 5.0L 307cid GAS CARB N Engine VIN = Y
1987 BUICK REGAL V8 5.0L 307cid GAS CARB N Engine VIN = Y
1987 CADILLAC FLEETWOOD BROUGHAM V8 5.0L 307cid GAS CARB N Engine VIN = 9
1987 CADILLAC FLEETWOOD BROUGHAM V8 5.0L 307cid GAS CARB N Engine VIN = Y
1986 BUICK ELECTRA ESTATE WAGON V8 5.0L 307cid GAS CARB N Engine VIN = Y
1986 BUICK LESABRE ESTATE WAGON V8 5.0L 307cid GAS CARB N Engine VIN = Y
1986 BUICK REGAL LIMITED V8 5.0L 307cid GAS CARB N Engine VIN = Y
1986 BUICK REGAL V8 5.0L 307cid GAS CARB N Engine VIN = Y
1986 CADILLAC FLEETWOOD BROUGHAM V8 5.0L 307cid GAS CARB N Engine VIN = Y
1985 BUICK ELECTRA ESTATE WAGON V8 5.0L 307cid GAS CARB N Engine VIN = Y
1985 BUICK LESABRE CUSTOM V8 5.0L 307cid GAS CARB N Engine VIN = Y
1985 BUICK LESABRE ESTATE WAGON V8 5.0L 307cid GAS CARB N Engine VIN = Y
1985 BUICK LESABRE LIMITED V8 5.0L 307cid GAS CARB N Engine VIN = Y
1985 BUICK RIVIERA V8 5.0L 307cid GAS CARB N Engine VIN = Y
1984 BUICK ELECTRA ESTATE WAGON V8 5.0L 307cid GAS CARB N Engine VIN = Y
1984 BUICK ELECTRA LIMITED V8 5.0L 307cid GAS CARB N Engine VIN = Y
1984 BUICK ELECTRA PARK AVENUE V8 5.0L 307cid GAS CARB N Engine VIN = Y
1984 BUICK ELECTRA ESTATE WAGON V8 5.7L 350cid DIESEL FI N Engine VIN = N
1984 BUICK LESABRE CUSTOM V8 5.0L 307cid GAS CARB N Engine VIN = Y
1984 BUICK LESABRE LIMITED V8 5.0L 307cid GAS CARB N Engine VIN = Y
1984 BUICK LESABRE CUSTOM V8 5.7L 350cid DIESEL FI N Engine VIN = N
1984 BUICK LESABRE LIMITED V8 5.7L 350cid DIESEL FI N Engine VIN = N
1984 BUICK RIVIERA V8 5.0L 307cid GAS CARB N Engine VIN = Y

[HI WINDING MONZA]

Thanks Paul, I hope you didn't type all those , my one finger style would take me all day , I got a " F " in typing in High School. Doug in AZ

[acstestinc]

LOL, no that was a pure "cut & paste".

[HI WINDING MONZA]

The old 84 Citation sitting in my back yard with the tired 151 also has the 94 amp 12 SI brand new in it.

Looks like I'll be borrowing it!

Doug in Az