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> 914-6 Heat Exchanger Availability, Whats the current status
seanery
post Jun 22 2012, 07:56 PM
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Looking around for heat exchangers, it looks like Billy Boat is about it here in the US. Mittlemotor lists two different diameters but lists no manufacturer. It looks like GHL doesn't do Porsche stuff anymore?

*edit* added Hayward & Scott

BB - $2310 pr
MM - E 1469 each (IMG:style_emoticons/default/blink.gif) That's $1847 at today's exchange rate - each!! You will get a 19.5% discount if shipped to the US, however.
H&S GBP 1400 pr - they look most like factory exchangers

What else is available now?

That brings up another idea. What are the odds of buying Bursch headers and fabbing HE's and ceramic coating the whole lot?


Mittlemotor HEs
(IMG:http://www.914world.com/bbs2/uploads_offsite/www.mittelmotor.de-100-1340416888.1.jpg)

Billy Boat HEs
(IMG:http://www.914world.com/bbs2/uploads_offsite/www.bbexhaust.com-100-1340416977.1.jpg)

Bursch Headers
(IMG:http://www.914world.com/bbs2/uploads_offsite/www.pelicanparts.com-100-1340417099.1.jpg)

Hayward & Scott
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mepstein
post Jun 22 2012, 08:19 PM
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Look up Hayward and scott. Not cheap but looks nice. Many people have talked about fabbing up their own but it rarely happens.
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sixnotfour
post Jun 22 2012, 08:29 PM
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put a big alternator and go electric...thats my latest, love it.

http://dcthermal.com/brushess-cabin-heaters
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PlaysWithCars
post Jun 22 2012, 08:54 PM
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QUOTE(sixnotfour @ Jun 22 2012, 07:29 PM) *

put a big alternator and go electric...thats my latest, love it.

http://dcthermal.com/brushess-cabin-heaters


What size are you running Jeff? Looks like they range from 220W to 600W.

Its low priority on my list of things needed to get the -6 back on the road, but I love driving on cool spring or fall days with the top off. Won't be too enjoyable w/o heat; although I am looking seriously at putting seat heaters in too.
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smj
post Jun 22 2012, 09:53 PM
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I've got no heat in my -6, and was trying hard not to think about the cost of heat exchangers - though I'm glad they're still available. I'd been eyeing the heated seat inserts at Camp914, but an electric heater with enough umph to clear the windshield would still be a good idea... (IMG:style_emoticons/default/idea.gif)
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pete-stevers
post Jun 22 2012, 09:55 PM
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i have heard the bb and stainless versions.... are more for the thought ..than the heat....
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smj
post Jun 22 2012, 09:59 PM
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QUOTE(mepstein @ Jun 22 2012, 06:19 PM) *

Look up Hayward and scott. Not cheap but looks nice. Many people have talked about fabbing up their own but it rarely happens.

Hayward & Scott - 914 / 6 Performance manifold with heat exchangers

€1.400 w/o tax or shipping, or about US$1,760 for the pair at today's exchange rate. So depending on shipping and tax, maybe a better price than BB.
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ClayPerrine
post Jun 23 2012, 07:04 AM
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Use these:

Aircraft Spruce Homebuilder heat muffs.


(IMG:http://www.914world.com/bbs2/uploads_offsite/216.23.190.132-1143-1340456665.1.jpg)

They bolt over the exhaust and turn a simple tube into a heat exchanger.
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mepstein
post Jun 23 2012, 07:35 AM
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QUOTE(ClayPerrine @ Jun 23 2012, 09:04 AM) *

Use these:

Aircraft Spruce Homebuilder heat muffs.


(IMG:http://www.914world.com/bbs2/uploads_offsite/216.23.190.132-1143-1340456665.1.jpg)

They bolt over the exhaust and turn a simple tube into a heat exchanger.

It would be nice if someone tested them out. I have a feeling that 9 inches of coverage won't be enough to heat the interior to the temp I want
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seanery
post Jun 23 2012, 08:07 AM
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Ebay $3900 Heat Exchangers! (IMG:style_emoticons/default/unsure.gif)
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SLITS
post Jun 23 2012, 08:14 AM
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I have a set of B&Bs. Will let you know how they work once we finish the conversion.

I have a couple of sets of mangy /6s ... they can be fixed, but they ain't pretty.

$4K is a new high. Last ones I saw were $2.2K
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seanery
post Jun 23 2012, 08:16 AM
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Ron, the thing I've read about the BB is that the fit at the muffler (driver side?) is off a bit. I'd love to hear how they fit and function for you!

I do like the look of the Hayward & Scott.
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sean_v8_914
post Jun 23 2012, 09:57 AM
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what is the going price for original 914/6 heat exch that are in usable condition?
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seanery
post Jun 23 2012, 10:25 AM
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AA has some a left one that needs work for about $450 on ebay.
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sean_v8_914
post Jun 23 2012, 11:00 AM
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they are better than that.


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sean_v8_914
post Jun 23 2012, 11:01 AM
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...self lubricating
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sean_v8_914
post Jun 23 2012, 11:03 AM
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afraid of extinction, he has gone into self preservation mode.


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sean_v8_914
post Jun 23 2012, 11:05 AM
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the pipe bends are groovy
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Steve
post Jun 23 2012, 11:14 AM
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What sucks about original heat exchangers is that they measure 1 3/8" and taper to about 1 1/4 on the inside. Not optimal for a bigger motor. My 3.2 runs fine on them, but I know I am probably losing a bit of HP with them. I should be running 1 5/8"
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IronHillRestorations
post Jun 23 2012, 11:18 AM
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About 50% of the B&B's I've sold/bought had problems. I won't get them anymore, as it costs too much to round trip ship those things.

Heat exchangers of mild steel = future life insurance payout for your beneficiaries

Every set of factory 914-6 HE's I've ever seen have that same pitting as the spendy ones on eBay. And every set of 6 HE's that have come off a running car usually needs a little repair.

FWIW, the much storied carb'd 3.0 from Bruce Anderson's book, was a 914-6 with factory HE's. The factory HE's flow really well.
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