heat exchanger question, 75 2.0 |
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heat exchanger question, 75 2.0 |
TROJANMAN |
Feb 3 2005, 12:08 PM
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#1
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Looks nice in pictures......... Group: Members Posts: 5,271 Joined: 5-March 04 From: Colorado Member No.: 1,753 Region Association: None |
can i swap my 75 2.0 HE's with a pre 75 car? and if so, will this help performance? and...........does anyone have some? and.............would anyone want mine?
thanks in advance (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) |
Allan |
Feb 3 2005, 12:13 PM
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#2
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Teenerless Weenie Group: Members Posts: 8,373 Joined: 5-July 04 From: Western Mesopotamia Member No.: 2,304 Region Association: Southern California |
Yes you can. I am doing the same thing to mine. If you look at the '75-'76 H/E's you will notice that the exhaust goes forward first then to the back which I understand dosn't flow well. You will need to also replace all of the tubes that go to the heater flapper valves and the exhaust hanger, plus a new muffler.
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TROJANMAN |
Feb 3 2005, 12:14 PM
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#3
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Looks nice in pictures......... Group: Members Posts: 5,271 Joined: 5-March 04 From: Colorado Member No.: 1,753 Region Association: None |
are these all items i can scrape from a parts car and easily install, or will i need to make modifications?
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Allan |
Feb 3 2005, 12:17 PM
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#4
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Teenerless Weenie Group: Members Posts: 8,373 Joined: 5-July 04 From: Western Mesopotamia Member No.: 2,304 Region Association: Southern California |
It's my first time so I hope so. Actually I believe as long as you can find the parts everything should bolt up with no problem. |
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Root_Werks |
Feb 3 2005, 04:15 PM
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#5
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Village Idiot Group: Members Posts: 8,331 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
Shameless plug here. (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)
If you live in CA, don't you have to keep the ability to have the CAT on for the 75-76 914's? Anyway, I have a Bursch header w/cat bypass. Used, nice shape. PM me if you want it cheap. Just in case you decide to stick with the stock set up. Yeah, the 73-74' 2.0 is the better set up by far. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) |
Dave_Darling |
Feb 3 2005, 04:26 PM
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#6
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Do a search. I posted a list of what you need from the earlier cars a little while back...
--DD |
double-a |
Feb 3 2005, 05:00 PM
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#7
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Senior Member Group: Members Posts: 987 Joined: 15-September 03 From: vancouver, wa, usa Member No.: 1,162 Region Association: Pacific Northwest |
(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif)
i referred to that list a few weeks ago when i began looking for the necessary parts. ~a |
MarkG |
Feb 3 2005, 05:09 PM
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#8
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Member Group: Members Posts: 314 Joined: 24-May 04 From: Colorado Springs Member No.: 2,102 |
quote" To use the 2.0 heat exchangers (or SSIs) on a 75-76 914 (either 1.8 or 2.0), you will need:
The 2.0 exchangers The 2.0 muffler The 2.0 muffler hanger 2 muffler gaskets 4 2.0 exhaust gaskets (the copper rings) 8 exhaust nuts (usually best to replace them) All of the heater hardware except for some hoses. That means-- • 2 S-shaped ducts from the fan shroud to the exchangers • 2 J-shaped tubes from the large holes in the engine tin to the S-ducts • 2 Extension pipes from the exchangers to the flapper valves • 2 Flapper valves • 2 Hoses from the flapper valves to the heater channels in the chassis You can actually use the 75-76 flapper valves and the hoses; but the flappers can be a real pain to remove from the late exchangers (or the early extension pipes), and the hoses often need to be replaced anyway. If you don't get the heater hardware, the exhaust will still function--but the heat won't." from Dave's post.... will be doing this myself someday.... |
Rhodes71/914 |
Feb 3 2005, 07:34 PM
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#9
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Glacier Group: Members Posts: 1,374 Joined: 8-August 04 From: End of the Road, Alaska Member No.: 2,482 |
I am about to do this as well and will be moving everything from my 1.7 to my 75 2.0.
The question I have is what copper exhaust gaskets to use the 1.7 (since the HE are 1.7s) or 2.0 (since the heads are 2.0) |
Dave_Darling |
Feb 4 2005, 02:19 PM
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#10
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
That points out one error in my post above. The copper gaskets go with the heads, not with the exchangers. So you need the copper gaskets for whichever cylinder heads you have.
--DD |
Dominic |
Feb 5 2005, 11:48 AM
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#11
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Dominic Group: Members Posts: 992 Joined: 14-January 03 From: Vacaville, CA Member No.: 149 Region Association: Northern California |
Yes it will definately help with performance, the earlier cars had 95HP and your car has 87HP with the smog crap and restrictive exhaust. Disconnect the smog pump, cap off the smog injectors and put the early exhaust system on your car for some free HP...Well maybe not free but it's just waiting to be let out. If you don't need the heat, you could probably sqeeze a few more ponies out with a header. FREE HORSE POWER (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif) |
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Rhodes71/914 |
Feb 5 2005, 12:13 PM
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#12
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Glacier Group: Members Posts: 1,374 Joined: 8-August 04 From: End of the Road, Alaska Member No.: 2,482 |
Thanks Dave, luckily I ordered the right ones. |
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scotty914 |
Feb 5 2005, 12:21 PM
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#13
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suby torque rules Group: Members Posts: 1,525 Joined: 20-July 03 From: maryland, the land of 25 year Member No.: 924 |
two tricks to get the HE to seal to the head better are:
take a long file and file the HE where they go to the head so they are flat and parallel also take the copper sealing ring and heat it up with a propane torch as haot as you can get it with out melting it, then drop it in to a bucket of water, this will soften it |
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