Si to CS alternator-I know...

[hardwaycooke]

I have the cs130. I have the harness with the built in resister that goes from the ext reg alt to the CS.

Do I simply plug in the plug into the harness and then the CS end into the new alternator?? or do I have to do the cutting and jumping at the ext reg??

Someone please give me very simple, 12 year old instructions if I need to, . Thanks

[lolife99]

Does this help?
http://www.novaresource.org/alternator.htm

[hardwaycooke]

Originally Posted by lolife99

Does this help?
http://www.novaresource.org/alternator.htm

yeah, but it says that this infom if only if going to SI int reg to CS int Reg.

I'm going from SI ext reg to CS int reg and have the resister adapters from AC Delco.

Help me people...

[POPO1984]

I have the same adapter. I believe you still need to do the connecting at the external regulator harness. I have not got that far yet.

[67 chevelle]

this will answer all your questions if you take time to read it , actually it is concise

http://madelectrical.com/electrical-tech.shtml

[DeadheadNM]

Not sure this helps but I got the jumper harness kit that bridges the OEM alternator connector to the int regulated alternator. The kit also has a rubber "stopper" that plugs into the harness connector for the ext regulator. It's clean and that easy.

[hardwaycooke]

Originally Posted by POPO1984

I have the same adapter. I believe you still need to do the connecting at the external regulator harness. I have not got that far yet.

Let me know please thx

[hardwaycooke]

Originally Posted by DeadheadNM

Not sure this helps but I got the jumper harness kit that bridges the OEM alternator connector to the int regulated alternator. The kit also has a rubber "stopper" that plugs into the harness connector for the ext regulator. It's clean and that easy.

Where did you get that?

[davepl]

There are a billion pages on how to convert from external to internal regulator. If you want to be fancy you can hack up a spare regulator and do the mod internally as well, but I just loop the wires as per normal. Can't see the regulator under the battery box anyway.

But what's this about a resistor? Is it some weird requirement to get the field jump started or something? I've never heard of a resistor in the adapter, not have i had a resistor in any of the half-dozen or so conversions I've done, all of which worked fine...

[hardwaycooke]

Originally Posted by davepl

There are a billion pages on how to convert from external to internal regulator. If you want to be fancy you can hack up a spare regulator and do the mod internally as well, but I just loop the wires as per normal. Can't see the regulator under the battery box anyway.

But what's this about a resistor? Is it some weird requirement to get the field jump started or something? I've never heard of a resistor in the adapter, not have i had a resistor in any of the half-dozen or so conversions I've done, all of which worked fine...

Yeah, I know, it's confusing me. There's 100 different threads and most with different approaches. They say you need a resistor if going from a Si to a CS if you dont have the idiot light. I'm kinda learning as I go so I'm just trying to find the best, easiest, right way to do it.
Still not getting that...LOL..

[Firecap44]

Try doing a dn to a cs conversion

[hardwaycooke]

Ok. Talked to the guy at madelectrical. He said a cs130 140amp alternator was overkill for my application, no stereo, no electrical fans, no a/c...and said a si12 100 amp was plenty and that he definitely would not use the cs130 140 with an ext wire jump like I've been reading about. He said new wiring is best and even with my higher end ignition components a 65-100 si is plenty.
So there...but since I have the cs130, I'm gonna hook it up and see for myself.

[DeadheadNM]

Originally Posted by hardwaycooke

Where did you get that?

See here: http://www.classicheartbeat.com/Elec...%20harness.htm

Plug and play - easy and does the job right with no harness mods.

[hardwaycooke]

Originally Posted by DeadheadNM

See here: http://www.classicheartbeat.com/Elec...%20harness.htm

Plug and play - easy and does the job right with no harness mods.

mine is a v-belt setup. Will this be ok???

[hardwaycooke]

Originally Posted by hardwaycooke

Ok. Talked to the guy at madelectrical. He said a cs130 140amp alternator was overkill for my application, no stereo, no electrical fans, no a/c...and said a si12 100 amp was plenty and that he definitely would not use the cs130 140 with an ext wire jump like I've been reading about. He said new wiring is best and even with my higher end ignition components a 65-100 si is plenty.
So there...but since I have the cs130, I'm gonna hook it up and see for myself.

Also said he wouldnt use the cs130 with a v-belt setup. wow...am I just way off base with this or what?
Should I just get a Si12 int reg and send the cs back??

[VetteVet]

Originally Posted by hardwaycooke

I have the cs130. I have the harness with the built in resister that goes from the SI to the CS.

Do I simply plug in the SI plug into the harness and then the CS end into the new alternator?? or do I have to do the cutting and jumping at the ext reg??

Someone please give me very simple, 12 year old instructions if I need to, . Thanks

If you have already converted to the SI internal regulated alternator you should not have to jump the external regulator plug.

Originally Posted by hardwaycooke

yeah, but it says that this infom if only if going to SI int reg to CS int Reg.

I'm going from SI ext reg to CS int reg and have the resister adapters from AC Delco.

The SI alternators are internal regulated alternators. The external regulators alternators are called DN. The thread I posted at the bottom covers both types.



Help me people...

Originally Posted by Firecap44

Try doing a dn to a cs conversion

Yours is a bit different because your junction for the red alternator wires is the Horn relay mounted on the radiator support. I will work with you in your thread in the electrical forum. In any case read the following thread. It covers both conversions


....http://67-72chevytrucks.com/vboard/s...d.php?t=417872

[hardwaycooke]

Originally Posted by VetteVet

If you have already converted to the SI internal regulated alternator you should not have to jump the external regulator plug.







Yours is a bit different because your junction for the red alternator wires is the Horn relay mounted on the radiator support. I will work with you in your thread in the electrical forum. In any case read the following thread. It covers both conversions


....http://67-72chevytrucks.com/vboard/s...d.php?t=417872

sorry mine is an ext reg...must be a dn.

[DeadheadNM]

Originally Posted by hardwaycooke

mine is a v-belt setup. Will this be ok???

Not sure - the harness are available for CS and SI type alts if that helps.

[RichardJ]

I have a CS130 in my '87 Vette and it's the last alternator I would take the time to put in my truck. I'm on the third or fourth one. Granted, Vette underhood temperatures are a lot higher than most '67-72 trucks, but that alternator can't stand the heat. The CS 130 has one external fan and one internal fan. The CS130D is a different animal and has two internal fans. I have read about many guys with C4 Vettes, switch out the CS130 for the CS130D or later model alternator.

>>cs130 140amp alternator was overkill for my application, no stereo, no electrical fans, no a/c...and said a si12 100<<

The guy at madelectric is more than correct. My '67 has a small dash Stereo with Bluetooth, Digital Climate Control AC, trailer brake controller, HEI and two fans on the radiator. Only one fan works because the second one is on an overheat thermostat.

The alternator is a 10DN with External regulator

[davepl]

Ah, that makes sense. In a normal setup (ie: every one I've done before) I've always included the idiot light. That voltage differential (sense line) must be important for some reason.

As for size, you need to scale it to what you're running. My truck really has no additional extra load beyond stock, but if you've got dual electric fans and a big electric fuel pump and extra lighting and so on, then it becomes an issue.

My Range Rover, for example, has a heated windshield, heated rear window, heated steering wheel, four heated seats, and on and on. That's why it has a monstrous alternator (sounds like close to 200A just adding that stuff up at 12V) that they literally liquid-cool. Only liquid-cooled alternator I've run across.