 1.7 HX on a 2.0, What's the difference? |
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| Teknon |
 Dec 22 2004, 10:38 AM
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#1
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The more I learn the dumber i think I am  Group: Members Posts: 357 Joined: 10-August 04 From: Denver, Colorado Member No.: 2,505 Region Association: Rocky Mountains  |
Why can't the 1.7/1.8 exhaust fit on a 2.0? Doesn't the exhaust manifold come out in the same place? I see the bend on the 1.7 HX where as the 2.0 exhaust is straight. Curious. (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif)
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Replies(1 - 9)
| Aaron Cox |
Dec 22 2004, 10:39 AM
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#2
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
it CAN go on....
but the 2.0 EX is good for *5* more HP b/c less restriction * subject to verification * |
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| Mueller |
Dec 22 2004, 10:49 AM
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#3
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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5hp is pushing it, it's a much less loss than that.....
you'll need the 1.7 muffler and exhaust hanger that bolts to the rear of the transmission |
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| Bleyseng |
Dec 22 2004, 11:14 AM
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#4
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
There is a difference in the OEM HE's 1.7 vs 2.0l in pipe diameter. With the SSI HE's the pipe is the same size. Using the OEM 1.7's on a 2.0l will rob some hp.
Geoff |
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| Teknon |
Dec 22 2004, 11:25 AM
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#5
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The more I learn the dumber i think I am Group: Members Posts: 357 Joined: 10-August 04 From: Denver, Colorado Member No.: 2,505 Region Association: Rocky Mountains |
These are SS HX's. I heard but not sure that they are bigger. (IMG:http://www.914world.com/bbs2/html/emoticons/monkeydance.gif)
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| Rhodes71/914 |
Dec 22 2004, 11:41 AM
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#6
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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 in the process of going from a 1.7 to a 2.0, the 2.0 that I have is a 75 so I will be using the 1.7 HX and muffler that I already have until I can afford the SS 73 style HX. I have been told that I can swap them right over.
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| Teknon |
Dec 22 2004, 11:52 AM
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#7
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The more I learn the dumber i think I am Group: Members Posts: 357 Joined: 10-August 04 From: Denver, Colorado Member No.: 2,505 Region Association: Rocky Mountains |
Why did Porsche make the 2.0 HX straight?
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| Root_Werks |
Dec 22 2004, 12:06 PM
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#8
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Village Idiot Group: Members Posts: 8,320 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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If you look at a stock and I mean stock (30+ year old stock) 1.7 muffler and 2.0 muffler you will see the 2.0 is just larger, hence the need to bring it down a little more or make the pipes straight. The 1.7 muffler is smaller so Porsche was able to bring it up a little farther to better hide it. You can use the 1.7 HE on a 2.0, I would doubt you would actually notice a power loss. Both engines are under 100hp and differ by less than 20hp so the difference would probably be 1-2hp loss. Somewere in there.
Yes, the SSI's are slightly larger than even the stock 2.0 HE pipes. Now, I set of SSI's and bursch muffler (or equiv) might add 4-5hp on a 2.0, 3-4hp on a 1.7. Also, yes the hangers are different as well of course. The 1.7 puts the muffler higher. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) |
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| SirAndy |
Dec 22 2004, 12:11 PM
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#9
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Resident German Group: Admin Posts: 41,640 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
yupp, they are. same inner dia. for the 1.7/1.8/2.0 SSIs, larger than stock ... and yes, you'll also need the 1.7 hanger and a 1.7 exhaust ... (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) Andy |
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| Teknon |
Dec 22 2004, 12:14 PM
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#10
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The more I learn the dumber i think I am Group: Members Posts: 357 Joined: 10-August 04 From: Denver, Colorado Member No.: 2,505 Region Association: Rocky Mountains |
Thanks alot you guys. I love this website. Don't know how I would do all this without it.
(IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif) Three cheers. |
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