Angel Posted 2August, 2018 Report Share Posted 2August, 2018 Trying to see if anyone has any experience with trying to get fresh air through the centre vent. The AC has been removed, so now am trying to get the fresh air through centre vent also. See photos of current setup at the moment. All I can seem to find is for LHD cars, but not much on RHD. Trying to find out what I need and how I can make this work. Any help/knowledge would be much appreciated. Link to comment Share on other sites More sharing options...
tazzieman Posted 2August, 2018 Report Share Posted 2August, 2018 I just ran a duct from the A/C outlet from under the dash , attached an angled piece of plumbing plastic (painted black so no purist gets knotted knickers) and kept the front A/C fan. It works fine blasting a convection current past your sweating bod on a warm day. If you were inclined you could get creative with snap on duct extensions, like a real urban OTLW! Link to comment Share on other sites More sharing options...
Zelrik911 Posted 2August, 2018 Report Share Posted 2August, 2018 Great question: I would love to see a simple solution. Link to comment Share on other sites More sharing options...
Harvs11 Posted 3August, 2018 Report Share Posted 3August, 2018 Plenty of info and pictures on PP. The colour coded air flow diagrams at the start help to explain the system http://forums.pelicanparts.com/porsche-911-technical-forum/385784-retrofitting-non-c-ventilation-ducts.html On 8/2/2018 at 5:18 PM, tazzieman said: I just ran a duct from the A/C outlet from under the dash , attached an angled piece of plumbing plastic (painted black so no purist gets knotted knickers) and kept the front A/C fan. It works fine blasting a convection current past your sweating bod on a warm day. If you were inclined you could get creative with snap on duct extensions, like a real urban OTLW! I think this would be recirculating cabin air, not drawing fresh air. Link to comment Share on other sites More sharing options...
tazzieman Posted 3August, 2018 Report Share Posted 3August, 2018 11 hours ago, Harvs11 said: I think this would be recirculating cabin air, not drawing fresh air. Convection current is all you need. Fresh air comes from those pieces of glass above the door. If you're suffering sweat rash from stop start CBD traffic in summer, I can't help you. A consequence of choices A back wax might help. Link to comment Share on other sites More sharing options...
OZ930 Posted 4August, 2018 Report Share Posted 4August, 2018 Since your fresh air to the side vents comes in via the grill above the bonnet and travels through the fan box you need to tap into a hose from the fan box to a vent. You need a "y" piece or splitter, preferably in the tube that goes to the passengers side, with one exit hose going to the passengers vent and the other to the centre vent. Link to comment Share on other sites More sharing options...
81SC Posted 4August, 2018 Report Share Posted 4August, 2018 My understanding is that you need item 20 from the PET to achieve fresh air at the centre vent. Link to comment Share on other sites More sharing options...
OZ930 Posted 4August, 2018 Report Share Posted 4August, 2018 I was just about to load that same diagram. Cheers. Be aware that this diagram is of a LHD car, but the principle is the same. Link to comment Share on other sites More sharing options...
81SC Posted 4August, 2018 Report Share Posted 4August, 2018 22 minutes ago, OZ930 said: I was just about to load that same diagram. Cheers. Be aware that this diagram is of a LHD car, but the principle is the same. OZ, per the PET remarks column the /LL & /RL generally designate what is LHD & RHD specific. Link to comment Share on other sites More sharing options...
Peter M Posted 4August, 2018 Report Share Posted 4August, 2018 LL -> Linkslenker RL -> Rechtslenker ie LHD and RHD respectively In case I wasn't the only one wondering what the initials were shorthand for. Link to comment Share on other sites More sharing options...
OZ930 Posted 4August, 2018 Report Share Posted 4August, 2018 1 hour ago, Peter M said: LL -> Linkslenker RL -> Rechtslenker ie LHD and RHD respectively In case I wasn't the only one wondering what the initials were shorthand for. Sorta like instructions. Looked at the diagram, yeah I know what's going on, didn't look at the narrative. Part 20 isn't there but thanks Peter, I have learnt something today...now I need nanny nap ? Link to comment Share on other sites More sharing options...
Angel Posted 5August, 2018 Author Report Share Posted 5August, 2018 Hi guys, Thanks for everyone's responses, been helpful, will look into part 20 and go from there. Link to comment Share on other sites More sharing options...
DS911 Posted 5August, 2018 Report Share Posted 5August, 2018 I was looking to do the same thing when I restored my old SC. I tried to get hold of part 20 but had no luck so I found a suitable Y piece on eBay. I think the brand was Webasto. I also bought new flexi ducting as you can see from the pic. It worked pretty well, although this method splits the air flow so it's a strong as the when the air con fan is installed. Link to comment Share on other sites More sharing options...
Angel Posted 7August, 2018 Author Report Share Posted 7August, 2018 Thanks DS911, that's very helpful! Link to comment Share on other sites More sharing options...
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