Ahhhh!! Why is this so dificult? AC with Denso Alt.

I can't be the only person that has done this. Here is the deal. I want a high amp alternator that I can run with my new style AC. I just feel like there has to be a solution out there and I missed it. I've dug through alot of posts but can't find a definitive answer.

Here is what I have run into. AREngineering makes the Denso bracket, but it won't work with AC from what I have read. Bouchillon Perf. makes a relocation bracket for the AC unit that allows you to move the compressor below the altenator, but they say it won't work with the AR Eng. bracket.

What other solutions are there? I'm not married to the Denso alternator, but I really like the way it looks compared to the GM units.

Also, I have already upgraded all of my wiring harness and ditched the dash amp meter.

Denso's, while a bit better than Mopar alternators, just don't put out a lot of amps down low in the rpm range.

I ended up using an AC-Delco CS 144 for that very reason. It effortlessly runs all my add-on electrical accessories with the engine idling at 800rpm; Halogen headlights, twin Spal high-output fans, large electric fuel pump, MSD, and A/C.

Most people(Moparts members excepted) never even notice it's not a Mopar alternator either, but then again, most people don't notice my car has A/C.

...another pic of CS 144 & A/C add-on. The voltage regulator on the firewall is not hooked up while using this alternator.

The CS 144 has remote voltage sensing if you want to use it. I found it uneccessary as it puts out more than enough amps to keep the voltage up at the rear mounted battery.

Thank you for sharing this. I love the clean look of your engine bay. What brackets are you using for the alternator and compressor?

Thanks,
Tim

I thought they would work together. I was planning on using both vendors for the same on my B-body. Maybe AndyF and Bouchilon needs to be contacted to possibly remedy this situation? I hope this can be resolved

As you found out, the "with AC" alternator bracket has extra bracing at the top and a fixed swing arc. Not very flexible.

When the squareback wouldn't cut it for me I took the setup from my core engine... the big 100+A Chrysler unit per the pic. It works great... just heavy.

The swing arc for the Chrysler alternator and matching brackets is bigger than the Denso. As a winter project I'll try to fab an adator fitting to mount the Denso in the Chrysler bracket.

PS: I had to lengthen the water neck by about 2" so the stock type top hose would clear the belts with room to spare. Not shown in the pic.

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Thank you for sharing this. I love the clean look of your engine bay. What brackets are you using for the alternator and compressor?

Thanks,
Tim

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Thanks. I used a $35 adaptor braket that I got on-line and then all the factory Mopar alternator stuff.

For the A/C, I used Buchillon's under alternator kit, but then modified it so I have about 30% more belt wrap on both the crank-to-A/C compressor and A/C compressor-to-alternator pulleys. Both the A/C and alternator have their own belt with the A/C driving the alternator on it's second pulley groove.

I found the way Buchillon's belt path was designed to be run resulted in belt squeel and inadequate power transfer to the A/C and alternator in my case, as only about 30% of the A/C & alternator pulleys made contact with the belt. By changing the belt routing, I was able to get over 50% belt wrap on both pulleys. The Buchillon kit also requires you to use an electric fuel pump, which I wanted to run anyway.

My water pump and Power steering use a separate belt.