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help ID unique carb stacks
ID 47mm no taper. overall length 90mm top to bottom. not sure what the second flange is for.
what effect would the extra length have ? (55mm stack for comparison) TIA   
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05-28-2020, 12:55 PM
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It's a 914 ...
Join Date: Jan 2008
Location: Ossining, NY
Posts: 4,690
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Sometimes people will vary stack length to optimize engine tuning. I don't recognize these, but maybe someone wanted custom length stacks for a 911.
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05-28-2020, 01:10 PM
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Registered
Join Date: Sep 2015
Location: Costa Rica and Pennsylvania U.S.
Posts: 3,301
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stack
I have seen this before.A standard stack cut and another slipped over to make it taller for mid range torque change.
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05-28-2020, 01:59 PM
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undervalued member
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seems to me you'd have a hard time getting those to tuck into a K&N type rainhat filter assembly. would the Porsche OE air filter assembly take that height? im not aware??
the second flange is for trimming them down to a manageable height?
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78SC PRC Spec911 (sold 12/15) https://www.youtube.com/watch?v=f7I6HCCKrVQ Now gone: 03 996TT/75 slicklid 3.oL carb'd hotrod 15 Rubicon JK/07.5 LMM Duramax 4x/86 Ski Nautique Correct Craft |
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05-28-2020, 04:53 PM
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Join Date: Jul 2001
Location: mt. vernon Wa. USA
Posts: 8,702
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I would think that the 2nd flange is the mounting surface for a filter base-plate.
Wasn't there some high filter assemblies available?
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[B]Current projects: 69-911.5, Previous:73 911X (off to SanFrancisco/racing in Germany).77 911S (NY), 71E (France/Corsica), 66-912 ( France), 1970 914X (Wisconsin) 76 911S roller..off to Florida/Germany RGruppe #669 http://www.x-faktory.com/ |
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05-30-2020, 08:21 AM
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Briget
the 23 car
domino
