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Posted by: luminarycrush Nov 10 2008, 07:15 PM

Hi, does anyone know if VW T-IV Bus heat exchangers will fit on a 914-4 cyl (and by fit I mean not hit the body or suspension)? I'm planning a turbo install and want to retain the car's heat, but thought it might be better for turbo plumbing to exit the heat exchangers farther forward.. this might allow me to install the turbo somewhere other than the tail w/ 914 factory heat exchangers.....

Posted by: melnyk Nov 10 2008, 07:39 PM

ditch the HE's and use an aux oil cooler as a heatercore

Posted by: kwales Nov 10 2008, 07:45 PM

You do know that the bus engine is located behind the axles with the exhaust aimed rearward and the teener engine is in front of the axles with the exhaust aimed rearward.

Placing bus heat exchangers on the teener will aim the exhaust at the front of the car....

Is that what you want?????

Ken

Posted by: Cap'n Krusty Nov 10 2008, 08:04 PM

The answer to your question, without all the unnecessary crap, is NO. Even T4 HEs, which are a LOT smaller than a bus, won't work. The Cap'n

Posted by: luminarycrush Nov 10 2008, 10:21 PM

Right, I wasn't thinking about the opposite engine mounting direction. What about reversed (left side to right) - even if the flanges have to be modified to make it bolt up to the head - they would not work/fit?
Otherwise I might have to look at something from Tangerine but they are pricey, or some other custom heat exchanger from... where?
I don't think favorably of using an oil heat exchanger - for one I already have a thermostat-controlled auxiliary oil cooler & second I don't like the fact that in cold weather I'm depending on the cooler oil to keep me warm - when I most need it. I could even over-cool the oil perhaps.

Posted by: Mark Henry Nov 11 2008, 02:28 PM

I've thought of this but never tried it, my guess is a lot of custom fab work. I've also thought about using later bus (79-82) boxes as they are just a box with a flange on each end. I would search some junk cores for mock-up as new boxes aren't cheap.

Any/all turbo exhaust set-ups are a total DIY and you're on your own bud.

Posted by: Cap'n Krusty Nov 11 2008, 04:38 PM

Bus HEs stick out 4-6" beyond the valve covers ..................

The Cap'n

Posted by: McMark Nov 11 2008, 08:14 PM

If you wanna go this route, look for 411/412 HE. They might work mounted backwards.

Posted by: ericread Nov 11 2008, 09:16 PM

If the HE's are mounted backwards, won't that generate cold air???

Seems like the wrong use for HRs.

Eric Read

Posted by: AJB Nov 12 2008, 06:36 AM

Eric, that's funny. I nearly spat my coffee out through my nose!

Posted by: Mark Henry Nov 12 2008, 07:24 AM

With the later bus boxes I wasn't even thinking about mounting them in the stock position.

Turbo exhaust is always going to be a custom part.