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> A/C on a 3.2 Conversion, Building an A/C system
McMark
post Jan 5 2015, 09:13 PM
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We're doing an A/C install on a 3.2 project car and I though ya'll might like to see how it goes.

First I made a rough mockup of the location to test fit the setup in the car. This is just a TINY bit too high. I need to move it down and outwards a bit to clear things.
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Once I had the general location I started making paper templates of the mount. It's a bit like putting together a puzzle, but instead of finding where pieces go, you just make your own as you go along. This will be made out of 1/8" plate most likely. The three circles you see will be bolts. The mount will be two pieces -- one underneath the tin and one on top. The tin will be sandwiched in between the two.
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Oh man. How do I STILL not have a CNC plasma cutter. (IMG:style_emoticons/default/headbang.gif)
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jeeperjohn56
post Jan 8 2015, 01:31 AM
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Mark, if you need a car to work with let know,you can use mine for mock up.John
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McMark
post Jan 9 2015, 12:49 PM
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Got the steel version done. It's very rigid and will work great. Just have to final weld the whole thing and make a few more sub-brackets. (IMG:style_emoticons/default/beerchug.gif)


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GeorgeRud
post Jan 9 2015, 03:10 PM
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Great looking! I think you may have finally come up with a workable solution for properly mounting an AC compressor on a 914-6. Have you checked whether the compressor location will allow you to swap out the oil filter on the oil tank with the AC compressor mounted? Worse comes to worse, it should be easy enough to move out of the way if needed for servicing, and should actually end up with better access to components than in a 911.
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Steve
post Jan 9 2015, 07:48 PM
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Wow!!! Looks great, but will it interfere with factory heat exchangers? You could probably still use the right side and or a fan for the left side.
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McMark
post Jan 9 2015, 09:19 PM
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I've realized there is too many combinations of components to offer a 'kit'. This will probably be full install only, with each setup custom tailored to the specific setup of each car.
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Steve
post Jan 10 2015, 10:30 AM
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QUOTE(McMark @ Jan 9 2015, 07:19 PM) *

I've realized there is too many combinations of components to offer a 'kit'. This will probably be full install only, with each setup custom tailored to the specific setup of each car.

I understand, but it would be awesome if you offered a kit that just included the pulleys, bracket and hardware. We could easily source the rest for our particular application.
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Dave_Darling
post Jan 10 2015, 01:44 PM
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I think he's saying that the bracket itself will probably have to be different for many of the installs. Maybe not unique to a particular car, but likely onesey-twosey...

--DD
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larryM
post Jan 10 2015, 09:02 PM
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interesting idea

show me how this fits in a stock oem 914-6 engine mount with double sheave 3.2 lower pulley

- i don't see the pulley clearances on mine

i have all the oem 3.2 compressor mounts
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McMark
post Jan 11 2015, 10:47 AM
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It doesn't fit on a stock 914-6 engine mount.
It doesn't fit on most of the currently available aftermarket engine mounts.

And so....
QUOTE
I've realized there is too many combinations of components to offer a 'kit'. This will probably be full install only, with each setup custom tailored to the specific setup of each car.
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McMark
post Jan 29 2015, 01:32 PM
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Finally finished all these brackets. Figuring out how to handle the tensioning was the hardest part, but this works really well. The lower pivot of the compressor is a door-hinge style setup. Once that M10 bolt is tightened the tensioner will be doing very little work. I still have to trim the engine tin for belt clearance and the two holes for the mounting bolts.

All in all it's quite rigid and I've already test fit everything and it just clears. All in all this project took about 35 hours. (IMG:style_emoticons/default/w00t.gif) And this definitely needs to be tailored to each individual setup. So a bolt on kit is impossible. (IMG:style_emoticons/default/sad.gif)


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SirAndy
post Jan 29 2015, 01:50 PM
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ConeDodger
post Jan 29 2015, 07:38 PM
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Saw it today in person! Installation looks factory... (IMG:style_emoticons/default/evilgrin.gif)
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McMark
post Jan 31 2015, 12:17 AM
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WHOA! Thanks to jcd914 (Jim) for pointing out that the 3.2 used just the crank pulley for A/C. The second groove on the fan pulley is not used. Time to order a new belt. WHEW! (IMG:style_emoticons/default/smiley_notworthy.gif)
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Steve
post Jan 31 2015, 10:53 AM
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Too funny.. I was wondering why you had that dual fan pulley on there. I thought it was a clearance thing. My 3.2 came with AC and only had the crank dual pulley.
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Gary
post Feb 1 2015, 06:49 AM
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Really slick!

I'm guessing the "handle bar" that's bolted to the top of the compressor is used set the tension?
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jeeperjohn56
post Feb 1 2015, 02:04 PM
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Mark, are you going to make more mounts for 3.2 motors? what will you charge for the whole set up and installation? let me know please. John
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mepstein
post Feb 1 2015, 02:12 PM
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Wow! Nice job! Real heat exchangers become available for a 6 and now an a/c option. Really opens up the possibilities to having an all weather car.

I understand you set this needs to be tailored to each individual set up but does that hold true for a 3.2 install - meaning, can you make a kit for the 3.2's or is that still not possible?
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okieflyr
post Feb 1 2015, 06:27 PM
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That looks sweet!
My question is do you think a center belt idler pulley would help with belt flutter given it's length? I can see the damper on the compressor but a belt damper may be beneficial as well?
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Cairo94507
post Feb 2 2015, 06:20 PM
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I just hate that McMark has figured this out! (IMG:style_emoticons/default/pray.gif) I would LOVE to add AC to my Six as it gets pretty darn hot where I live and it would be so cool (see what I did there....) to have AC blowing while cruising in the summer. But I will probably be condemned to burn in Hell if I try to put AC in my car in addition to the 3.2 engine.
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bcheney
post Nov 17 2016, 05:44 AM
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Great work. Why not at least offer a bolt on kit for someone doing a 3.2 like this one?
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