 Stock exhaust photos, four-cylinder, that is... |
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| Dave_Darling |
 Apr 9 2004, 11:01 AM
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#1
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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 
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Every once in a while, I get asked questions about the differences between the various exhausts that came on stock four-cylinder 914s. I have taken a number of pictures, but cannot seem to find the best ones for the 1.7 and (early) 2.0 exhaust. But this is what I have. I would appreciate it if someone would help out by providing better pics if they have them.
Anyway, let's start out with the 1.7 exchangers. They were also used on the 1974-only 1.8 cars, but it's easiest simply to call them "1.7 exchangers". The ones in this pic are SSIs, but you can (hopefully) see that they lift up off the ground back between the heat exchanger wrapping and the muffler flange. (And yes, this is one that I'd like a better pic of.) Attached image(s) 
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Replies(1 - 11)
| Dave_Darling |
Apr 9 2004, 11:03 AM
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#2
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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
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Next is the pic of a 2.0 exchanger. These were used on the 1973-1974 2.0. Note that they lay flat on the ground all the way back to the muffler flange.
This pic is of one with some of the heater hardware hooked up to it, and doesn't show the flat area that well. I'd like a better pic if someone has one. Attached image(s) 
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| Dave_Darling |
Apr 9 2004, 11:04 AM
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#3
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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
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Finally, we have the "late" exhaust. This was used on all of the 75-76 914s, 1.8 and 2.0 both. Note that it is a two-piece affair, with one part that bolts to the heads and joins together in a single tube, then another part that bolts to that and has the heat-exchanger wrapping on it. The muffler flange, as a result, is triangular instead of trapezoid-shaped like the earlier ones.
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| lagunero |
Apr 9 2004, 11:14 AM
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#4
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Donkey Member Group: Benefactors Posts: 1,042 Joined: 8-January 04 From: orange county,ca Member No.: 1,531  |
Performance wise, how big of a difference do you find between the 1.7 and 2.0 w/ same muffler?
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| Bruce Allert |
Apr 9 2004, 11:23 AM
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#5
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Hellions asleep Group: Members Posts: 3,289 Joined: 19-March 03 From: Eagle Creek, Orygun Member No.: 441 Region Association: Pacific Northwest |
I'm using the 1.7's on the 2.0. I asked the same question and the reply was I would have more bottom end than top. Prolly due to the smaller diameter of the 1.7 tubing creating a wee bit more back pressure. I'll know in a few days when I get it in (IMG:style_emoticons/default/clap56.gif)
......b |
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| F4i |
Apr 9 2004, 11:25 AM
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#6
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914 DOG! Group: Benefactors Posts: 482 Joined: 22-December 03 From: AB Canada Member No.: 1,460 |
hope this helps
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| F4i |
Apr 9 2004, 11:26 AM
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#7
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914 DOG! Group: Benefactors Posts: 482 Joined: 22-December 03 From: AB Canada Member No.: 1,460 |
pic2
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| F4i |
Apr 9 2004, 11:27 AM
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#8
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914 DOG! Group: Benefactors Posts: 482 Joined: 22-December 03 From: AB Canada Member No.: 1,460 |
I also have realized that I seem to have the early ssi exchangers. SS except for the flanges. I may have to fix that.
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| SirAndy |
Apr 9 2004, 12:12 PM
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#9
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Resident German Group: Admin Posts: 41,688 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
here is a pic of my 1.7 SSIs on my 1.8 BEFORE cleaning ...
(IMG:http://www.sirandy.com/pix/914/work/006.jpg) |
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| Dave_Darling |
Apr 9 2004, 02:44 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
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Excellent, folks! (IMG:style_emoticons/default/smile.gif) Now we'll have something to point to when people ask how to tell which exhaust they have.
Does this rate "Classic" status? --DD |
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| tat2dphreak |
Apr 9 2004, 02:49 PM
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#11
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region |
QUOTE(Dave_Darling @ Apr 9 2004, 02:44 PM) Excellent, folks! (IMG:style_emoticons/default/smile.gif) Now we'll have something to point to when people ask how to tell which exhaust they have. Does this rate "Classic" status? --DD (IMG:style_emoticons/default/agree.gif) classic all the way... someone needs to measure diameters of 1.7, 2.0 and SSI pipes... I can probably do the 1.7s this weekend... |
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| Rusty |
Apr 10 2004, 11:43 AM
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#12
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Wanted: Engine case GA003709 Group: Admin Posts: 7,942 Joined: 24-December 02 From: North Alabama Member No.: 6 Region Association: Galt's Gulch
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If someone can get the diameters posted, I'll most this to classic.
Thanks, Dave! -Rusty (IMG:style_emoticons/default/smoke.gif) |
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