Questions Porthole Deep Valance Exaust exit locations |
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Questions Porthole Deep Valance Exaust exit locations |
Ferg |
Jan 22 2019, 10:14 AM
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#1
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914 Guru Group: Members Posts: 5,948 Joined: 8-January 03 From: Boulder CO Member No.: 116 Region Association: None |
Is there a measurement or way to figure the exact location difference between the exhaust exit locations on a early 4cyc and 6cyc deep rear oem valance?
TIA Ferg (IMG:style_emoticons/default/beerchug.gif) |
johnlush |
Jan 22 2019, 10:25 AM
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#2
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What's all this then? Group: Members Posts: 371 Joined: 26-May 04 From: Cheyenne, WY Member No.: 2,108 Region Association: Rocky Mountains |
Ferg, I'm not sure about the differences between the -4 and -6 but I'd be glad to measure my -6 valance for your reference. -John
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Ferg |
Jan 22 2019, 11:01 AM
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#3
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914 Guru Group: Members Posts: 5,948 Joined: 8-January 03 From: Boulder CO Member No.: 116 Region Association: None |
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Freezin 914 |
Jan 22 2019, 11:19 AM
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#4
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Senior Member Group: Members Posts: 855 Joined: 27-July 14 From: Wisconsin Member No.: 17,687 Region Association: Upper MidWest |
If I recall correctly, something like 6 and 8 in, so 2 inches difference, I believe the 4cyl. Is farther to outside. I am trying to remember, had a 4 cyl. Porthole about a year ago...
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VegasRacer |
Jan 22 2019, 11:35 AM
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#5
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ELVIRA Group: Benefactors Posts: 8,507 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
I took a deep 4 rear valance, cut a rectangular piece with the hole off center and flipped it. Now the hole, with the nice factory lip, is in the proper location for the 6 exhaust.
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Ferg |
Jan 22 2019, 12:30 PM
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#6
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914 Guru Group: Members Posts: 5,948 Joined: 8-January 03 From: Boulder CO Member No.: 116 Region Association: None |
I think the 4 was further inside...
My car according to records has a factory six valance. Appears to be correct looking at other original six portholes, exhaust exit just to the left of the bumper tow plug when aligned vertically. And this is a pic from the net, of a 4 cyc early valance. much more inside. And a regular 4 exit on short valance To my eye, it looks like a normal 4 exit location and the Porthole exit on a early six valance is almost in the same location. My car above is a 4cyc with 2.0 muffler exiting the six valance, I can't tell if the muffler tip was modified or not. Building new muffler and want correct fitment. I expect now that I did more research I will leave the tip unwelded and weld on site perfecting the exit. |
ClayPerrine |
Jan 22 2019, 12:31 PM
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#7
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Life's been good to me so far..... Group: Admin Posts: 15,454 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
I bought a low mileage /6 porthole valence for Elwood. Now I have to remove the exhaust pipe on the stainless muffler and add one that will go out the correct hole.
Anyone know the size of the factory exhaust pipe? |
ClayPerrine |
Jan 22 2019, 12:33 PM
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#8
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Life's been good to me so far..... Group: Admin Posts: 15,454 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
The 4 cylinder valence has the hole/cutout farther to the outside. It is funny that the /4 valence matches the location for the 911 muffler outlet. But the 914/6 doesn't.
Why would Porsche make a custom muffler and valence for the 914/6 when they could use the /4 one with a 911 muffler?? (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/screwy.gif) |
Ferg |
Jan 22 2019, 12:37 PM
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#9
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914 Guru Group: Members Posts: 5,948 Joined: 8-January 03 From: Boulder CO Member No.: 116 Region Association: None |
Thanks Clay, that helps, going to build a Triad single out to exit my six valance. Trying to determine how much modification the stock 4 exit unit he already builds will need, but I think I'm going to have him ship it un-welded to I can perfect the exit location here on site.
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