 Why are 1975/1976 heat exchangers considered undesirable? |
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| Tdskip |
 Nov 29 2019, 03:58 PM
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Advanced Member  Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None 
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Just more convoluted than the earlier ones? Don’t flow as well?
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| Mark Henry |
Nov 29 2019, 04:24 PM
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(Maltese Falcon @ Nov 29 2019, 05:12 PM)  Probably the short primary tube design (like a manifold log design), with a long secondary (each bank) leading directly into a restrictive muffler/egr dump/ + cat. Everything the EPA/CARB needed in a '75-'76 914 to run hot and compliant (IMG:style_emoticons/default/evilgrin.gif) Nothing in this design bringing performance to the table. (IMG:style_emoticons/default/agree.gif) The early 2.0 HE's are not headers but at least they're two pipes that go straight back. Headers are the only true bolt on HP, although the increase isn't that big on a stock engine, on performance engine the difference using a good header is huge. |
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Posts in this topic
Tdskip Why are 1975/1976 heat exchangers considered undesirable? Nov 29 2019, 03:58 PM
ConeDodger Flow. Cat? Nov 29 2019, 04:02 PM Maltese Falcon Probably the short primary tube design (like a man... Nov 29 2019, 04:12 PM rhodyguy And the fasteners rust up pretty solid. LOTS of pi... Nov 29 2019, 04:19 PM
porschetub
Probably the short primary tube design (like a m... Nov 29 2019, 10:40 PM Tdskip Thanks all - very helpful discussion (as always) Nov 30 2019, 07:22 AM Triaddave I have a box full of 75/76 flanges, laser cut, the... Nov 30 2019, 12:51 PM Tdskip
I have a box full of 75/76 flanges, laser cut, th... Nov 30 2019, 05:46 PM Tdskip Thought this might be of interest to people who ha... Jun 8 2020, 02:23 PM |
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