 Can we have a photo conversation on the difference in H.E. by the year |
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| rick 918-S |
 Feb 21 2010, 02:06 PM
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Hey nice rack! -Celette  Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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I'm picking up a 74 2.0 car for Sandy. It is coming with a 75 engine. I started thinking about the H.E.'s and the difference in years. I'm not going to use the air pump stuff.
1) I don't recall is the 75's have a cat. Anyone have a photo of a 75 Exhaust from under the car? 2) I have a 72 steel exhaust. How much different are the 1.7's from the 2.0's? I think it would be cool if we could get a thread with photos of the different exhausts and how they perform. Header conversations are cool too. |
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| Gint |
Feb 21 2010, 03:24 PM
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Mike Ginter Group: Admin Posts: 16,075 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains  |
The 75 HE's and the early 1.78 and 2.0 are completely different. I've never owned a 75 or later, but I've been under a few. I don't have pics either unfortunately. Got PET? Look in there.
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| rick 918-S |
Feb 21 2010, 03:26 PM
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#3
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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QUOTE(Gint @ Feb 21 2010, 03:24 PM)  The 75 HE's and the early 1.7 and 2.0 are completely different. I've never owned a 75 or later, but I've been under a few. I don't have pics either unfortunately. Got PET? Look in there. No PET. Are you saying the 75 are the short set with CATS? Never owned newer that 73 and never a 2.0 |
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| Gint |
Feb 21 2010, 03:29 PM
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Mike Ginter Group: Admin Posts: 16,075 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
Only CA 75's had cats (I think). I know nothing about cats. You can put any set of HE's on any 4 cylinder 914 if you have the right parts. PET will tell you the difference. You can view it on the Porsche site even these days. Someone posted a link in the last day or two. In Mary's thread I think.
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| rick 918-S |
Feb 21 2010, 03:34 PM
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#5
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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OK cool, that helps. This is a 75 2.0 engine so it may have cats. I think the inside diameter is smaller with the 1.7 than the 2.0's I'm really just wondering if I'm going to have to search for a 2.0 H.E. set or if I can use what's on the engine. I will know what I have in a couple weeks.
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| underthetire |
Feb 21 2010, 03:35 PM
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
Didn't the 75 and 76 have the funny triangle flange instead of the 2 side by side?
I do know first hand (IMG:style_emoticons/default/headbang.gif) the 1.7 is different than the 2.0, and even the muffler and hanger are different. |
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| rick 918-S |
Feb 21 2010, 03:36 PM
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#7
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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QUOTE(underthetire @ Feb 21 2010, 03:35 PM) Didn't the 75 and 76 have the funny triangle flange instead of the 2 side by side? I do know first hand (IMG:style_emoticons/default/headbang.gif) the 1.7 is different than the 2.0, and even the muffler and hanger are different. What were you trying to fit? Got any photos? |
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| TheCabinetmaker |
Feb 21 2010, 03:42 PM
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#8
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Rick, I just removed a 75. Its sitting on the floor, I can get a pic and post it tomorrow. The ssi's are all the same diamater inside. The 75 he's will rob you of signifigant HP.
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| rick 918-S |
Feb 21 2010, 03:48 PM
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#9
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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QUOTE(vsg914 @ Feb 21 2010, 03:42 PM) Rick, I just removed a 75. Its sitting on the floor, I can get a pic and post it tomorrow. The ssi's are all the same diamater inside. The 75 he's will rob you of signifigant HP. Cool, This will help alot. So your saying the inside diameter if all H.E.'s are the same or all the Stainless sets are the same? Then are you saying the 75-76 H.E.'s rob HP? Because? of the cats? Can you remove the cats and get the HP back without replacing the entire system? We don't have inspections here in MN. So IO'm not planning on running the air pump stuff. |
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| underthetire |
Feb 21 2010, 03:48 PM
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#10
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
QUOTE(rick 918-S @ Feb 21 2010, 01:36 PM) QUOTE(underthetire @ Feb 21 2010, 03:35 PM) Didn't the 75 and 76 have the funny triangle flange instead of the 2 side by side? I do know first hand (IMG:style_emoticons/default/headbang.gif) the 1.7 is different than the 2.0, and even the muffler and hanger are different. What were you trying to fit? Got any photos? Just a bunch of 1.7 and 2.0 stuff on the ground right now. The 1.7 come out higher at the end and has a bend in it. The 2.0 has bigger tube and come straight out. It's really raining out, so cant get pics right now. I do not have the later units at all. |
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| rick 918-S |
Feb 21 2010, 03:52 PM
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#11
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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QUOTE(underthetire @ Feb 21 2010, 03:48 PM) QUOTE(rick 918-S @ Feb 21 2010, 01:36 PM) QUOTE(underthetire @ Feb 21 2010, 03:35 PM) Didn't the 75 and 76 have the funny triangle flange instead of the 2 side by side? I do know first hand (IMG:style_emoticons/default/headbang.gif) the 1.7 is different than the 2.0, and even the muffler and hanger are different. What were you trying to fit? Got any photos? Just a bunch of 1.7 and 2.0 stuff on the ground right now. The 1.7 come out higher at the end and has a bend in it. The 2.0 has bigger tube and come straight out. It's really raining out, so cant get pics right now. I do not have the later units at all. Oh, ok, I think I'm catching on. (just a little slow today (IMG:style_emoticons/default/biggrin.gif) ) Post what you have when you get a chance. |
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| TheCabinetmaker |
Feb 21 2010, 03:55 PM
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#12
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
QUOTE(rick 918-S @ Feb 21 2010, 03:48 PM) QUOTE(vsg914 @ Feb 21 2010, 03:42 PM) Rick, I just removed a 75. Its sitting on the floor, I can get a pic and post it tomorrow. The ssi's are all the same diamater inside. The 75 he's will rob you of signifigant HP. Cool, This will help alot. So your saying the inside diameter if all H.E.'s are the same or all the Stainless sets are the same? Then are you saying the 75-76 H.E.'s rob HP? Because? of the cats? Can you remove the cats and get the HP back without replacing the entire system? We don't have inspections here in MN. So IO'm not planning on running the air pump stuff. The late he's are made different. They have a piece that goes forward from the header then makes a u turn, and bolts to the he's. SSI's are the same 1.7 0r 2's |
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| rick 918-S |
Feb 21 2010, 04:01 PM
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#13
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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QUOTE(vsg914 @ Feb 21 2010, 03:55 PM) QUOTE(rick 918-S @ Feb 21 2010, 03:48 PM) QUOTE(vsg914 @ Feb 21 2010, 03:42 PM) Rick, I just removed a 75. Its sitting on the floor, I can get a pic and post it tomorrow. The ssi's are all the same diamater inside. The 75 he's will rob you of signifigant HP. Cool, This will help alot. So your saying the inside diameter if all H.E.'s are the same or all the Stainless sets are the same? Then are you saying the 75-76 H.E.'s rob HP? Because? of the cats? Can you remove the cats and get the HP back without replacing the entire system? We don't have inspections here in MN. So IO'm not planning on running the air pump stuff. The late he's are made different. They have a piece that goes forward from the header then makes a u turn, and bolts to the he's. SSI's are the same 1.7 0r 2's Thanks Curt, I'm going to have to see if I can find a photo of the 75-76 system. Thanks for the clarification of the SSI's |
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| TheCabinetmaker |
Feb 21 2010, 04:05 PM
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#14
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
QUOTE(rick 918-S @ Feb 21 2010, 04:01 PM) QUOTE(vsg914 @ Feb 21 2010, 03:55 PM) QUOTE(rick 918-S @ Feb 21 2010, 03:48 PM) QUOTE(vsg914 @ Feb 21 2010, 03:42 PM) Rick, I just removed a 75. Its sitting on the floor, I can get a pic and post it tomorrow. The ssi's are all the same diamater inside. The 75 he's will rob you of signifigant HP. Cool, This will help alot. So your saying the inside diameter if all H.E.'s are the same or all the Stainless sets are the same? Then are you saying the 75-76 H.E.'s rob HP? Because? of the cats? Can you remove the cats and get the HP back without replacing the entire system? We don't have inspections here in MN. So IO'm not planning on running the air pump stuff. The late he's are made different. They have a piece that goes forward from the header then makes a u turn, and bolts to the he's. SSI's are the same 1.7 0r 2's Thanks Curt, I'm going to have to see if I can find a photo of the 75-76 system. Thanks for the clarification of the SSI's Should be on the PET. |
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| Dave_Darling |
Feb 21 2010, 10:39 PM
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#15
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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I'm pretty sure there's a post in the Classics forum with pics.
The 1.7 and 74 1.8 use the same exhaust. The 73-74 2.0 is a different one; the heater parts interchange with the earlier exhaust but the muffler and muffler hanger and heat exchangers are different and not swappable. The 75-76 exhaust is different, and restrictive, and pretty much none of the parts interchange to the earlier setup. But you can swap on the whole exhaust and heater setup from an earlier car onto the late cars. --DD |
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| rick 918-S |
Feb 21 2010, 11:08 PM
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#16
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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QUOTE(Dave_Darling @ Feb 21 2010, 10:39 PM) I'm pretty sure there's a post in the Classics forum with pics. The 1.7 and 74 1.8 use the same exhaust. The 73-74 2.0 is a different one; the heater parts interchange with the earlier exhaust but the muffler and muffler hanger and heat exchangers are different and not swappable. The 75-76 exhaust is different, and restrictive, and pretty much none of the parts interchange to the earlier setup. But you can swap on the whole exhaust and heater setup from an earlier car onto the late cars. --DD Thanks Dave! I'll try to find it in the Classics thread |
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| Mikey914 |
Feb 22 2010, 12:56 AM
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#17
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The rubber man Group: Members Posts: 12,670 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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Not all 75 or 76's (mine's a 76) have the cats. It's my understanding the cats were for CA cars. I would you could easily find someone in CA(without the cat set up) that wants to DEQ thier car would swap in a heartbeat.
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| Sleepin |
Feb 22 2010, 01:25 AM
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#18
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Advanced Member Group: Members Posts: 3,647 Joined: 20-November 07 From: Grand Junction, Co. Member No.: 8,357 Region Association: Rocky Mountains |
Man! I wish I knew this earlier! I had a whole 76 2.0 (HE's included) tipped on it's side in the back of dad's pickup! ...and I had my camera out!
We had quite a converstion about the 75-76 exhausts. I will try to take some pics tomorrow. Yup, cats are for Cali cars. I have a catalytic converter off of mine in my attic. |
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| rick 918-S |
Feb 22 2010, 07:50 AM
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#19
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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QUOTE(Sleepin @ Feb 22 2010, 01:25 AM) Man! I wish I knew this earlier! I had a whole 76 2.0 (HE's included) tipped on it's side in the back of dad's pickup! ...and I had my camera out! We had quite a converstion about the 75-76 exhausts. I will try to take some pics tomorrow. Yup, cats are for Cali cars. I have a catalytic converter off of mine in my attic. Did you replace the entire exhaust or just remove your cat? I guess I'm wondering if you remove the cat and fad a "test pipe" as the chevy call it, is that enough to recover the hp lost through that system? That photo would be a big help. Thanks. I did a search last night for the PET but didn't find it. |
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| TheCabinetmaker |
Feb 22 2010, 08:10 AM
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#20
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Here ya go Rick.
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