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Trailblazer LS2 AC Compressor TRSA12

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Old Oct 19, 2010 | 04:28 PM
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Default Trailblazer LS2 AC Compressor TRSA12

Does anyone have any pics or know the dimensions on the TRSA12 compressor that came on the LS2 Trailblazer SSs? It looks smaller than a Sanden 508 or SD7 and it's a fixed displacement scroll type design. I can't find dimensions anywhere. I'm thinking about picking one up for my LY6-> Nova swap to hook up to a Vintage Air setup. There seem to be pad to o-ring adapters I could use for hooking up the lines. I'm mostly interested in the dimensions as mounted to the engine. Any info is appreciated!

Here is a pic from an ebay ad:
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Old Oct 19, 2010 | 05:05 PM
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Check out vintage air catalogue online, page 57. They have a new compressor, Sanden, that has the F-body mounts just like stock, appears to be small in diameter, like you need.......would post the link, but don't know if that's allowed.....

Part number.....046440-MTR 6-Groove serpentine pulley - standard finish


T,
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Old Oct 20, 2010 | 10:07 AM
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The reason I'm interested in the TRSA compressor is that I can get one used for $50-60, it will line up with my truck accessory drive using the Trailblazer brackets, and it appears (at least in picture) to be smaller than a 508 or SD7. It's a fixed displacement design and even though it displaces less per rev than a typical 508 or SD7H15, it uses a smaller pulley and runs faster so the flow rate is about the same. Seems like a good option to me.
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Old Oct 20, 2010 | 04:58 PM
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I thought we couldn't run factory AC compressors as they are concidered " climate control". I have no idea what it means. It would be nice to clearify for future reference.
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Old Oct 20, 2010 | 04:59 PM
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Perhaps someone with a TBSS LS2 would be willing to part with theirs?
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Old Oct 20, 2010 | 05:25 PM
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Originally Posted by Jimbo1367
I thought we couldn't run factory AC compressors as they are concidered " climate control". I have no idea what it means. It would be nice to clearify for future reference.
A lot of the new vehicle compressors are variable displacement. I believe there are ways to make them work for an older AC system, but fixed displacement compressors like the sanden 508 and sd7 series are more popular for retrofits. The compressor I'm asking about is supposably fixed displacement (according to the Sanden website) and I presume it would work fine.
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Old Oct 26, 2010 | 11:32 AM
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Originally Posted by TomM
Check out vintage air catalogue online, page 57. They have a new compressor, Sanden, that has the F-body mounts just like stock, appears to be small in diameter, like you need.......would post the link, but don't know if that's allowed.....

Part number.....046440-MTR 6-Groove serpentine pulley - standard finish


T,
I looked into these a bit more and they can be found on ebay for around $100 and potentially less. They are an SD7H15 with side direct mounts and side exit PAD. This looks like it would be a good option depending on where it is mounted and whether or not the lines exit someplace accessable. Thanks for the tip!
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Old Oct 26, 2010 | 01:08 PM
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Go down to Autozone or NAPA, and ask if they have one in stock. Take a look at it & check the dimensions while you're there.
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Old Jul 27, 2015 | 11:57 AM
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Default TBSS TRSA12B Compressor Mounting

Sorry to bring this back, but....

Has any one found a bracket that will allow the use of the TRSA12B compressor to mount to an LS2 in the low position similar to the factory TBSS bracket?

I am running the truck oil pan and do not have the bosses like the TBSS mount requires for the lower holes in the compressor bracket.

Thank you,

Bob
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Old Jul 27, 2015 | 12:29 PM
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I'm not sure what you're talking about. The stock bracket does not bolt to the oil pan.
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Old Jul 28, 2015 | 09:53 PM
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Originally Posted by -TheBandit-
I'm not sure what you're talking about. The stock bracket does not bolt to the oil pan.
A TBSS compressor bracket does.
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