Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> Stock exhaust photos, four-cylinder, that is...
Dave_Darling
post Apr 9 2004, 11:01 AM
Post #1


914 Idiot
**********

Group: Members
Posts: 14,991
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California



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)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies(1 - 11)
Dave_Darling
post Apr 9 2004, 11:03 AM
Post #2


914 Idiot
**********

Group: Members
Posts: 14,991
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California



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)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dave_Darling
post Apr 9 2004, 11:04 AM
Post #3


914 Idiot
**********

Group: Members
Posts: 14,991
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California



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.


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
lagunero
post Apr 9 2004, 11:14 AM
Post #4


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?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bruce Allert
post Apr 9 2004, 11:23 AM
Post #5


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
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
F4i
post Apr 9 2004, 11:25 AM
Post #6


914 DOG!
**

Group: Benefactors
Posts: 482
Joined: 22-December 03
From: AB Canada
Member No.: 1,460



hope this helps


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
F4i
post Apr 9 2004, 11:26 AM
Post #7


914 DOG!
**

Group: Benefactors
Posts: 482
Joined: 22-December 03
From: AB Canada
Member No.: 1,460



pic2


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
F4i
post Apr 9 2004, 11:27 AM
Post #8


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.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Apr 9 2004, 12:12 PM
Post #9


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)
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Dave_Darling
post Apr 9 2004, 02:44 PM
Post #10


914 Idiot
**********

Group: Members
Posts: 14,991
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California



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
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tat2dphreak
post Apr 9 2004, 02:49 PM
Post #11


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...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Rusty
post Apr 10 2004, 11:43 AM
Post #12


Wanted: Engine case GA003709
*****

Group: Admin
Posts: 7,942
Joined: 24-December 02
From: North Alabama
Member No.: 6
Region Association: Galt's Gulch



If someone can get the diameters posted, I'll most this to classic.

Thanks, Dave!

-Rusty (IMG:style_emoticons/default/smoke.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 15th June 2024 - 05:38 PM