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> Making a 914-6 Conversion your own, The Quest for Quiet
Root_Werks
post Nov 27 2024, 04:26 PM
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The Six Conversion:

2.7 CIS with 993 cams, 46/40 valves, 911S 8.5:1 CIS Pistons with Nikasil cylinders. Guessing it produces slightly more than stock 2.7S HP and has a much lower, broader TQ curve.

Current exhaust is stock 914-6 HE's and one of Ben's SS Quiet mufflers. Been very happy with the exhaust note the past few years, but always wondered if stock would be quieter.

Ben's Quiet Muffler ( I did have to reclock the tip as it was more for 1974-up 911):



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Root_Werks   Making a 914-6 Conversion your own   Nov 27 2024, 04:26 PM
Root_Werks   Took the 914 out and ran some baseline numbers usi...   Nov 27 2024, 04:32 PM
Root_Werks   Ran the same tests as close as I could, same stret...   Nov 27 2024, 04:38 PM
worn   When I first got the 3.2 engine in the car I decid...   Nov 27 2024, 04:55 PM
mb911   Man 86 dbs is pretty quiet for these cars   Nov 27 2024, 04:39 PM
Steve   With my 3.2 most of the noise came from the fan an...   Nov 27 2024, 05:03 PM
mepstein   With my 3.2 most of the noise came from the fan a...   Nov 27 2024, 06:54 PM
Montreal914   @[url=http://www.914world.com/bbs2/index.php?showu...   Nov 28 2024, 02:16 AM
mb911   https://achtungkraft.com/pages/gtk-muffler-line ...   Nov 28 2024, 05:00 AM
Root_Werks   Stock Dansk, sorry about that.   Nov 28 2024, 12:27 PM
mb911   Stock Dansk, sorry about that. Nothing to be sor...   Nov 28 2024, 01:39 PM
mlindner   I have Ben's sport muffler and headers. Great ...   Nov 28 2024, 04:36 PM
horizontally-opposed   Very interesting thread, and agree the readings ar...   Nov 29 2024, 12:04 PM
Steve   914toy on the forum is also on this quest. He has...   Dec 1 2024, 10:09 AM
914Toy   I use the 914-6 air cleaner. I am investigating a ...   Dec 1 2024, 04:23 PM
mepstein   I use the 914-6 air cleaner. I am investigating a...   Dec 1 2024, 08:00 PM
914Toy   I use the 914-6 air cleaner. I am investigating ...   Dec 1 2024, 08:20 PM
mb911   I really do miss the quiet system when the roof is...   Dec 1 2024, 05:12 PM


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