Nippondenso 10pa20c - Team Camaro Tech
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post #1 of 6 (permalink) Old Jun 13th, 11, 08:14 AM Thread Starter
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Steve
 
Join Date: May 2001
Location: Clermont, FL
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Nippondenso 10pa20c

Has anyone used the Nippondenso 10pa20c direct replacement for the A6 compressor? There is a direct A6 replacement available from Nostalgic air Parts. There is also the Saden 508 based replacement available from Old Air Products. I am looking for a comparison of the two, if anyone has experience, please post.
Additionally, has anyone replaced their OEM condenser with newer style cross flow or parallel flow condenser. Did you notice any improvement?

68 convertible
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post #2 of 6 (permalink) Old Jun 14th, 11, 11:40 AM
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Michael
 
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Location: Lutz, FL
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Re: Nippondenso 10pa20c

I had a stock '67 AC setup and converted to R134.

I switched to the Sanden compressor because it doesn't explode at 6,000 RPM or take as much HP to turn. Don't know about the Nippondenso compressor, but I'm real happy with the tiny Sanden.

Along with the R134 conversion, I switched to the parallel condenser which is supposed to do a better job than the old condenser. All I know is its pretty hot in the summer in FL and the AC works great.
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post #3 of 6 (permalink) Old Jun 14th, 11, 05:18 PM Thread Starter
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Steve
 
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Re: Nippondenso 10pa20c

Thanks for the input Mahunt. I see we are in the same part of Florida, and it has sure been hot here lately. The info about the Sanden 508 internals in the Old Air Products A6 replacement is out of date. I found it in an earlier post on this form, but the tech I got in touch with today said they are using a "10 pack Nippondendo." He did not know what the displacement was, so I can't be sure if it is the larger 10pa20c. So I have ordered a 207cc Nippondenso 10pa20c from Nostalgic Air in Tampa. I have all the performance specs on the original A6, so I will determine the new ones for this compressor and post once I have it done.

68 convertible
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post #4 of 6 (permalink) Old Jun 15th, 11, 09:50 AM
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Michael
 
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Re: Nippondenso 10pa20c

I got help for my conversion in Tampa at http://www.classicautoair.com/ by the airport. My 2 favorite parts of the conversion was CCA turning the screw in the POA to allow for R134a (1 minute while I watched) and them custom cutting and crimping the two big AC top hoses.

CCA sells the parallel condenser as a kit specifically for the '67 Camaro. Great people.

Ask them about your Nippondenso, they'll probably have an opinion.
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post #5 of 6 (permalink) Old Jun 21st, 11, 09:12 AM Thread Starter
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Steve
 
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Location: Clermont, FL
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Re: Nippondenso 10pa20c

I decided to purchase the Cool Pro S6 Compressor from Nostalgic Auto Air. this is the Niiondenso 10pa20c. It has a larger displacement than the Sanden508. Installation has been a bit of a head ache. It is not a "direct replacement" for first gen Camaros. The issue is that the front flange on the compressor is a lot thicker than the A6. This will work fine if the compressor mounts to the bracket using the rear of the flange, however the first gen Camaro uses the back of the flange. The way around this is to either machine (or grind) the rear of the the compressor flange to make it thinner and mount it as the original, or to use 7/16 spacers between the bracket that mounts to the compressor and the bracket that mounts to the water pump. If using the spacers, the compressor will then mount to the rear of the bracket. I am using the spacers because I felt that machining the flange would make it too thin and risk cracking it. I will post again once completed and let all know how well it works.

68 convertible
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post #6 of 6 (permalink) Old Jun 27th, 11, 08:58 AM Thread Starter
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Steve
 
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Location: Clermont, FL
Posts: 296
Re: Nippondenso 10pa20c

Installation is complete. The new compressor is a lot quieter than the A6 and does appear to take less HP. In addition to using spacers in the mounting brackets as described above, I had to adust the compressor manifold bracket to mount it to the front of the compressor for stability. The system cools well, no change from the A6. I do think I will install a new cross flow condensor, the old design is not as efficient with the 134a.

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