Aftermarket vs Factory A/C Comparisons - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**29od1** · 01-18-2014, 12:17 PM

I would like to pose the question whether the aftermarket A/C kits (Vintage Air, Old Air, etc) perform well enough to cool the entire cab of a Blazer/Jimmy?

And also if anyone has a comparison of the factory A/C systems compared to aftermarket A/C.

I know this has been asked in the past, but I've not found a real concensus on an answer.

I think this topic would greatly interest many people, so please let's hear from RUNNING and DRIVING Blazer and Jimmy owners that have actual first hand experience.

Thanks!

**Blazerowner** · 01-18-2014, 02:32 PM

I have factory air and just need a charge so this a question I would like to see answered. I also wonder if a newer compressor would improve the capacity of the system. Especially if you are doing an LS swap. Vintage air is nice but if you can keep stock and be cheaper why not.

TonyJohnson · 01-23-2014, 09:43 AM

I'm listening. Gonna do something this summer...

pound41 · 01-23-2014, 12:03 PM

My 1970 Blazer which I am now restoring and haven't run in a while made me wonder the same question. Searching online I found and article by a person who restored car professionally. They were giving steps on how to adjust your POA valve or what one to use to make your old system perform like it did on R12 with 134a. If memory is correct R12 is supposed to be cooler. Anyway the computer crashed and I lost the article. I am sure you could search that and fined some info

01-18-2014, 12:17 PM	#1
29od1 Registered User Join Date: Oct 2006 Location: Wichita, Kansas Posts: 1,050	Aftermarket vs Factory A/C Comparisons I would like to pose the question whether the aftermarket A/C kits (Vintage Air, Old Air, etc) perform well enough to cool the entire cab of a Blazer/Jimmy? And also if anyone has a comparison of the factory A/C systems compared to aftermarket A/C. I know this has been asked in the past, but I've not found a real concensus on an answer. I think this topic would greatly interest many people, so please let's hear from RUNNING and DRIVING Blazer and Jimmy owners that have actual first hand experience. Thanks!

01-18-2014, 02:32 PM	#2
Blazerowner Senior Member Join Date: Apr 2006 Location: Yuba City, Ca Posts: 1,956	Re: Aftermarket vs Factory A/C Comparisons I have factory air and just need a charge so this a question I would like to see answered. I also wonder if a newer compressor would improve the capacity of the system. Especially if you are doing an LS swap. Vintage air is nice but if you can keep stock and be cheaper why not. __________________ Kirk 72 Blazer CST 4wd highlander

01-23-2014, 09:43 AM	#3
TonyJohnson Registered User Join Date: Mar 2003 Location: Cheboygan, MI Posts: 998	Re: Aftermarket vs Factory A/C Comparisons I'm listening. Gonna do something this summer... __________________ Tony Johnson -- '71 Blazer w/L-31 Vortec 350, SM465, NP205, performer intake, edelbrock 1406, HEI, 4" lift, Boyd EFI tank, Vintage A/C My Blazer --

01-23-2014, 12:03 PM	#4
pound41 Registered User Join Date: Dec 2002 Location: Northern Virginia Posts: 1,268	Re: Aftermarket vs Factory A/C Comparisons My 1970 Blazer which I am now restoring and haven't run in a while made me wonder the same question. Searching online I found and article by a person who restored car professionally. They were giving steps on how to adjust your POA valve or what one to use to make your old system perform like it did on R12 with 134a. If memory is correct R12 is supposed to be cooler. Anyway the computer crashed and I lost the article. I am sure you could search that and fined some info



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