cgsheen1 Posted March 25, 2021 Share #13 Posted March 25, 2021 You'll find them in Factory A/C 260Z's and 280Z's. Mine has one that mounts under the steering column. Can't tell if it had one for the passenger cuz the ducting was all gone (destroyed by the Arizona heat) from that side. Mostly gone from the driver side too but the tee to the "foot vent" was still there. I have several of those plastic vent outlets in the shop as I tend to horde stock A/C parts. My son's 76 also has similar plumbing. And, no, the tubing that goes to those small foot vents is not rigid - it's flexible ~1 1/4" vent tubing. Like the larger stock vent tubing it was insulated. The answer(s) to low vent airflow in the 260Z/280Z are: Kia blower upgrade and replacing the stock center duct diverter with an UltraHeaven replacement. I hope Lucas (the engineer who designed this amazing ductwork improvement) will soon be selling those to all you 260/280 owners. I have the prototype in Goldie and airflow out the center vents is DRASTICALLY improved while maintaining stock airflow out the side vents... 1 Link to comment Share on other sites More sharing options...
Dave WM Posted March 25, 2021 Share #14 Posted March 25, 2021 interested in the new center duct diverter, hope to hear more about it later! 1 Link to comment Share on other sites More sharing options...
cgsheen1 Posted March 26, 2021 Share #15 Posted March 26, 2021 On 3/25/2021 at 1:25 PM, Dave WM said: interested in the new center duct diverter, hope to hear more about it later! Expand He told me he's ordered foam gaskets to be made for them so I think he's getting close. Link to comment Share on other sites More sharing options...
S30Driver Posted March 26, 2021 Share #16 Posted March 26, 2021 On 3/25/2021 at 1:25 PM, Dave WM said: interested in the new center duct diverter, hope to hear more about it later! Expand Ditto ... Link to comment Share on other sites More sharing options...
siteunseen Posted March 26, 2021 Share #17 Posted March 26, 2021 Anyone know what this is? I found it recently in my storage building. Link to comment Share on other sites More sharing options...
zKars Posted March 26, 2021 Share #18 Posted March 26, 2021 On 3/26/2021 at 1:39 AM, siteunseen said: Anyone know what this is? I found it recently in my storage building. Expand Its part of the front of the 240z heater box that sits behind the center dash vent that directs vent air forward and to the two eye ball vents on the ends of the dash. Doesn’t exist on a 74-78 260/280 1 Link to comment Share on other sites More sharing options...
Dave WM Posted March 26, 2021 Share #19 Posted March 26, 2021 and this would be why the 240z add on ac pretty much sucks. It puts the evap on the suck side of the blower and then has to direct air thru this tiny center vent duct. I remember my old 72 having that system, and it really was not very good as far as cooling. Link to comment Share on other sites More sharing options...
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