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Which wires do i need to connect to this new one wire harness? Or should i just re-run a whole new wire? I’m installing a Holley SBC Complete Mid amount Accessory Drive kit on a 383 stroker. I’m running a new power wire for the alt that’s 2AWG
Parker Langley
Is that 2 pin alternator? or a 4-pin alternator. Do you have a part number for alternator. I'm guessing 4-pin but if you tell us the alternator part number can help figure out what you have.
I looked at the Holley part number it looks like it is a clone of the AD-244 with 4-pin connector.....
Originally Posted by Parker Langley
Which wires do i need to connect to this new one wire harness? Or should i just re-run a whole new wire? I’m installing a Holley SBC Complete Mid amount Accessory Drive kit on a 383 stroker. I’m running a new power wire for the alt that’s 2AWG
Parker Langley
Is that 2 pin alternator? or a 4-pin alternator. Do you have a part number for alternator. I'm guessing 4-pin but if you tell us the alternator part number can help figure out what you have.
Text above was struck-through to minimize misinformation since it does not appear to apply to AD-244 alternator. See post #8 below.
My understanding is that the 1 wire lead would be for an LS engine...... you want something that adapts it to your vehicle. I was considering going to an AD244 but ended up going to a 2-pin DR44G since i picked up the wrong alternator (by mistake) but in the end it was easier to adapt gave me more voltage control. I was hoping you had that so I could help you directly....that's why I had done some research on AD244s.
I previously had a 140-amp CS-144 an used an adapter harness with a resistor in it to make that work...and it worked wonderfully for years. The DR44G is a more recent development with a 2-pin connector and PWM control..... it was also used on LS engines but your 4-pin is the immediately prior generation.
Check me since I really don't know what a 78 had as far as an indication lamp.. Hope that is somewhat helpful. I would call Holley to ensure that your alternator is equivalent to AD244 alternator....I *think* that it is.
You really should call and ask Holley but I checked on the Holley & Summit & Rockauto websites what this holley alternator would fit and it seemed to be for vehicles that used the AD244.
My understanding is that the 1 wire lead would be for an LS engine...... you want something that adapts it to your vehicle. I was considering going to an AD144 but ended up going to a 2-pin DR44G since i picked up the wrong alternator (by mistake) but in the end it was easier to adapt gave me more voltage control. I was hoping you had that so I could help you directly....that's why I had done some research on AD244s.
I previously had a 140-amp CS-144 an used an adapter harness with a resistor in it to make that work...and it worked wonderfully for years. The DR44G is a more recent development with a 2-pin connector and PWM control..... it was also used on LS engines but your 4-pin is the immediately prior generation.
Check me since I really don't know what a 78 had as far as an indication lamp.. Hope that is somewhat helpful. I would call Holley to ensure that your alternator is equivalent to AD244 alternator....I'm fairly sure it is.
You can all and ask Holley but I checked on the Holley & Summit & Rockauto websites what this holley alternator would fit and it seemed to be for vehicles that used the AD244.
If you read the notes in the ebay ad it states: "Notes: For vehicles WITHOUT no charge light. Adapts two-pin, Si style vehicle wiring to the four pin oval plug used on CS121D, CS130D, AD230, AD237, and AD244 series alternators."
If it is a AD244 clone then you can use this instead. You need to ask Holley. I'm going to delete the earlier adapter post just to minimize misinformation.
Take a look at that. If its an AD244 clone then you don't need to do any rewiring...one end plugs into you 12si vehicle harness and the other end into your new alternator......well you should get a bigger output lead from the alternator.
Does you 78 go from the alternator to the starter post? My 68 alternator output (6 gauge now) runs to the horn relay bus bar; then another lead runs from the horn relay bus bar to the starter post. I upgraded the one from the altnernor to the starter post to 6-gauge also; wire with 10-gauge fusible link for protection.
If it is a AD244 clone then you can use this instead. You need to ask Holley.
Take a look at that. If it’s an AD244 clone then you don't need to do any rewiring...well other than a bigger output lead from the alternator. Does you 78 go from the alternator to the starter post?
Yeah it runs straight to the positive terminal, I’m running 2AWG
Ok then..... so I think you are saying it does NOT go to the starter post and goes directly to positive terminal on the battery? I guess it doesn't matter much but you need to have either a fuse or a fusible link for protection.
By the way....neither here nor there but I'm glad I ended up with a DR44G to replace the CS144. They're both about 140 amp alternators but with the PWM controller/contraption (~20 bucks total) I have better control of voltage. My CS144 would do about 13.5 to 13.7 vdc at idle....and more like 13.3 at ~650 to 700 rpm. When I installed the DR44G, with the PWM controller, I set the idle to maintain like 14.4 vdc at that low idle. I really like it. I would recommend it to anyone upgrading from an older generation alternator. The hardest part was fabricating a bracket for it.
Originally Posted by Parker Langley
Yeah it runs straight to the positive terminal, I’m running 2AWG
I concur. And I was looking for an AD244...... the DR44G gives you better voltage control and works really better at idle than my 140-amp CS-144 did. I picked mine up CHEAP at the boneyard just to see if it fit (and I thought it was a AD244- should have more research before I went looking but it worked out well)...
Originally Posted by Bikespace
DR44G is the way to go if you can find one for a reasonable price.
New alternator wiring
