NB Air conditioning in NA: Grassroots Motorsports forum: Grassroots Motorsports Magazine

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Sept. 1, 2011 12:53 p.m. Lugnut Dork

I got zero response from my miataforum post, so I will put it to you, my favorite Miata nuts.

I have a '91 with the factory air conditioning removed. I still have the AC button and I think there are a few parts left, I still need to catalog everything that is now missing.

I want to know whether a complete AC system removed from a '99 will install as-expected into my old '91. I think I am just getting too old to put up with these 600% humidity 184 degree summer days. Gotta have AC. So it's either a couple hundred bucks to buy a system removed from another car or a few grand to pick up another Miata with air conditioning.

Should I be able to put a later AC system into my '91?

Thanks!
Sept. 1, 2011 1:00 p.m. mtn SuperDork

Don't know about that, but you should be able to buy a new AC from mazdaspeed or other used/discount sources for your specific year.

And more info on your 99 AC? I have a 99 and the AC is also busted.
Sept. 1, 2011 1:33 p.m. bravenrace SuperDork

Your '91 will be an R-12 system and the '99 a 134-a system. That's okay, but some of the components are going to differ. Sorry, I don't know anything about Miata A/C, but if you have any general A/C questions while doing the swap, let me know. It's what I do.
Sept. 1, 2011 2:15 p.m. DaveEstey HalfDork

I'm most likely going to pull the A/C system out of my 96 if you're interested.
Sept. 1, 2011 3:27 p.m. Lugnut Dork

I still need to go through and figure out what is still there. If I get a complete system from the donor, I will just replace everything with the 134 system.