10Speed Posted July 27, 2015 Share Posted July 27, 2015 VW's are air cooled. A small amount of the air that is blown over the engine is siphoned off and blow through heater boxes that are around the exhaust, and then through the sill's and in to the car... Because my car is turbo with over sized exhaust tubing there is no room for heater boxes even if they did fit my tubing, so I have no heating in my car, not really a big problem, it's not my daily and I'd rather go fast than stay warm. But I was wondering, if I changed my turbo for one with water cooling connected to a heater core and blower would it generate enough heat to warm my car? 1 Quote Link to comment Share on other sites More sharing options...
Roman Posted July 27, 2015 Share Posted July 27, 2015 I cant see why it wouldnt work, annnnndddddddA prius (There's one at Zebra, at last check) has good parts for this idea. They need to keep the heater going even when the motor is off, in the engine bay there's a thermos tank for hot coolant, and a 12v electric water pump designed to pump the heater circuit. So you could use the pump from that, and then any old water based heater core, and lines in between. 3 Quote Link to comment Share on other sites More sharing options...
xsspeed Posted July 27, 2015 Share Posted July 27, 2015 issue will be if you dont want to heat the cabin how do you cool the turbo Quote Link to comment Share on other sites More sharing options...
Roman Posted July 27, 2015 Share Posted July 27, 2015 The same way that he would if there were no water lines connected (oil only) 1 Quote Link to comment Share on other sites More sharing options...
xsspeed Posted July 27, 2015 Share Posted July 27, 2015 is that sufficient on a turbo that has/needs(?) water lines? (I don't know just asking) I was thinking you could run a valve quite easily that diverts flow and just have a small rad or oil cooler for the turbo water when not wanting to heat cabin, so its just a manual slider to select heating/cooling inside cab Quote Link to comment Share on other sites More sharing options...
burrowssj Posted July 27, 2015 Share Posted July 27, 2015 Could also look into using a intercooler water pump from the first generation of subaru legacy. A lot of turbos don't require water cooling but still have it e.g td05 1 Quote Link to comment Share on other sites More sharing options...
Roman Posted July 27, 2015 Share Posted July 27, 2015 If wanting to divert the coolant to one thing or the other then there's an electric valve in the heater circuit for that as well. (Prius) Quote Link to comment Share on other sites More sharing options...
10Speed Posted July 27, 2015 Author Share Posted July 27, 2015 hmmm I hadn't got as far as considering pumps... that prius piece looks like the way to go... Quote Link to comment Share on other sites More sharing options...
10Speed Posted July 27, 2015 Author Share Posted July 27, 2015 was really just an idea... but might start hording parts.... though my turbo was reconditioned only a few hours ago... 1 Quote Link to comment Share on other sites More sharing options...
browndog Posted July 27, 2015 Share Posted July 27, 2015 I think it's a good idea, but I just wonder how much heat the turbo will generate, especially under light throttle/cruise conditions? The pipework to the core is usually quite small, 6-8mm usually, so not going to be a huge amount of flow, and it is just the central housing that the water flows around, not the exhaust housing. There will be some losses of heat as the water is piped forwards too. A water cooled turbo does not necessarily need the water cooling, they will operate okay without it, as the oil cooling will do the job on its own, so no need for diverters etc. It will still get a lot of cooling with the pump going, and the heater flap closed shut anyway. Another option might be to double skin the turbo downpipe, and blow air between the two skins, much like the original Porsche/VW heat exchanger. Should be plenty of available heat there. The only downside to this is that if you develop an exhaust leak between the two skins, it will kill you with carbon monoxide poisoning. But as a VW owner you probably knew that anyway 3 Quote Link to comment Share on other sites More sharing options...
AllTorque Posted July 27, 2015 Share Posted July 27, 2015 I can't see a turbo creating enough heat for heating a cabin. That prius water pump is for the invertor cooler, which only gets up to about 40°C Quote Link to comment Share on other sites More sharing options...
AllTorque Posted July 27, 2015 Share Posted July 27, 2015 Just get a electric heater like they use on hot rods 2 Quote Link to comment Share on other sites More sharing options...
Brock-Lee Posted July 27, 2015 Share Posted July 27, 2015 /water jacketed exhaust. 3 Quote Link to comment Share on other sites More sharing options...
tortron Posted July 27, 2015 Share Posted July 27, 2015 I have a vintage heater for cars without water pumps. Its just a fan unit that takes air from behind the radiator. Just modify the ducting to suck from.the heads and accept tge slight smell Quote Link to comment Share on other sites More sharing options...
Roman Posted July 27, 2015 Share Posted July 27, 2015 That prius water pump is for the most invertor cooler, which only gets up to about 40°C Aahhh yep my bad, indeed it is. There is still another electric pump and stop valve in the engine bay though, as I described - not sure what it looks like though. Quote Link to comment Share on other sites More sharing options...
sentra Posted July 28, 2015 Share Posted July 28, 2015 just run your turbo harder 3 Quote Link to comment Share on other sites More sharing options...
glen Posted July 28, 2015 Share Posted July 28, 2015 an anti-lag system would be great at getting the turbo up to heater temp in the morning. 7 Quote Link to comment Share on other sites More sharing options...
Yowzer Posted July 28, 2015 Share Posted July 28, 2015 The old Chevy Corvairs had little petrol burning heaters, I recommend one of them. 2 Quote Link to comment Share on other sites More sharing options...
h4nd Posted July 28, 2015 Share Posted July 28, 2015 http://www.trademe.co.nz/motors/caravans-motorhomes/parts-accessories/other/auction-923624765.htm Quote Link to comment Share on other sites More sharing options...
Testament Posted July 28, 2015 Share Posted July 28, 2015 Wear a turbo beanie 2 Quote Link to comment Share on other sites More sharing options...
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