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JW Apostate
Join Date: May 2004
Location: Napa, Ca
Posts: 14,164
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Weber jetting changes
From my old 2.0 to a '74 2.7
I have a pair of Weber 40's. What are the recommended jets, tubes and chokes for the bigger motor? Whose your vendor of choice? Thanks, KT
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'74 914-6 2.6 SS #746 '01 Boxster |
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03-10-2008, 09:28 PM
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Registered
Join Date: Jul 2001
Location: mt. vernon Wa. USA
Posts: 8,709
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Depends on your setup/cams
Per the PMO website: 2.7 CIS (cams): Venturi = 32 Main = 135 Air - 180 Idle = 55 Emulsion = F26 2.7 CIS with tall AV's 34 140 180 60 F3 2.7 E,S 34 145 180 60 F3 2.7 E,S W/tall AV's 36 155 175 60 F3 regards, al
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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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03-11-2008, 05:28 AM
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JW Apostate
Join Date: May 2004
Location: Napa, Ca
Posts: 14,164
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Thank you very much.
My memory does not have what it takes to recall my current jetting ( 2.0 S ), but those numbers for the 2.7 CIS sound very familiar. KT
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'74 914-6 2.6 SS #746 '01 Boxster |
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03-11-2008, 08:30 AM
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