I'd love to see a vintage air unit under the dash. How you would make it work with the factory controls, I don't know.

 

Your best bet is to modify your existing heater box (the inside half) and stack the evaporator core and heater cores side by side and add two more holes through the firewall for the refrigerant lines, use a a/c heater box delete blower motor shroud for the engine bay side. You'd need to add a 4 way by-pass valve to the heater hoses, a 10k pot would provide your heat control since you'd no longer be using the blend door control.

You'll need some decent fabrication skills and maybe an extra dash side heater box or two to cut up in order to make a larger frankenbox that still fits in the dash. It'd be a lot of work, but it is probably do-able.

Having had the dash apart many times, having replaced my heater and evaporators etc... my visual memory tells me that's how I'd attack the problem first.

The other way around would be just to delete the heater core, put the evaporator core where the heater core is (physically they aren't much different in size), and convert to electric heat, install an under-seat aux. 12v heater and wire it back to a dial mounted somewhere on your dash. You'd need a different evap core with two top outlets to still come out somewhere near where the heater cores does, otherwise the bottom outlet would be behind the passenger cylinder head... not a great spot for sure.

 

look at what they have for universal kits from Vintage and Classic Air,maybe adapt one of those.

 

Sounds like a lot of work when people have been putting turbos under the hood already.

 

I was considering adapting something from like a first gen Neon, or 1st Gen Jeep Liberty since the dash is pretty thin. I also looked and restomod air. Their stuff looks a lot nice than the Vintage air stuff. I've also looked at VW Jetta AC boxes and was going to check on the Colorado setup too, but haven't gotten that far.

Jay

 

I deleted the a/c compressor and lines when I put a turbo on my first gen Neon. They use an orafice tube where the hard lines bolt to the fire wall. Everything else is inside the dash. It works in the Neon because the dash comes out from the firewall like 2 feet.

Im 3000 miles away from the Neon so I cant measure or take pics and everything I had on that build is on photosuckit.

Not sure you could fit that behind the glove box door even if you cut out the back side of the glove box door.

 

Following. I have thought about this but have not gotten to the point of looking at parts. Does it need to be done no, but any extra space you can get under the hood I think is a win. Just depends how far you are willing to go.

 

Yea, this would be much easier to do with heat only. You could just move the blower motor to where the recirculation door is and make new ductwork. AC makes it tenfold more difficult, especially if you still want recirculation.

 

ok- food for thought- removing a/c to make room for turbo- upgrade alternator to the high output- run 6-8 gauge cables rearward- reroute a/c lines UNDER cab to relocated a/c setup under bed- power compressor off and electric motor- no changes in cab

 

another thought is to use the rear air portion of a tahoe,subdivison,escalade.
those seem to be a pretty compact unit.

 

There have been a few builds which used vintage air or a rear unit from an suv, to clear large wheels on air. The builds didn't detail the process and were not very helpful, other than it can be done.

 

I'm a member of neons.org myneonisbetterthanyours was my name there. I have a build thread there. I gave my neon to my son for his 18th birthday