 Curious... factory -6 carb specs |
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| Scott S |
 Dec 30 2009, 06:27 PM
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#1
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Small Member  Group: Members Posts: 1,697 Joined: 30-April 03 From: Colorado Member No.: 633  |
Hi All -
Being that Porsche sold cars in all 50 states, shouldnt there be a factory listing for the different carb settings/jet sizes for the 911? Obviously the cars that were sent to different altitudes had to be set up with different jetting. Has anyone ever heard or seen any sort of technical bulletin? (IMG:style_emoticons/default/beerchug.gif) Scott S |
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| Al Meredith |
Dec 30 2009, 07:12 PM
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#2
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Senior Member Group: Members Posts: 960 Joined: 4-November 04 From: Atlanta, ga Member No.: 3,061 |
Check in Anderson's book, he discusses the origional factory jetting (smog) and the recommended jets.
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| Gint |
Dec 30 2009, 07:13 PM
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#3
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Mike Ginter Group: Admin Posts: 16,071 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains  |
I have a copy you can borrow Scott.
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| jmill |
Dec 30 2009, 09:43 PM
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#4
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
Does this work?
Attached image(s) 
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| GeorgeRud |
Dec 30 2009, 11:20 PM
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#5
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
The top line of the chart (2.0 liter with L cams) looks quite right, though I don't have the spec book handy.
I know that the original venturis are the 27mm ones, a common upgrade was to enlarge to the 30mm ones on the 40 IDA carbs (along with larger jets). I don't believe that Porsche specified different jet specifications for higher altitudes, though I'm sure most owners living there had to change their jets to compensate for the lower oxygen levels. |
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| brant |
Dec 31 2009, 12:12 AM
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#6
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914 Wizard Group: Members Posts: 11,623 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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Scott,
want to borrow an innovate? ha.... Told you my little 2.0 jetting wouldn't work for you were using: 34vents 170mains another 50 units of 2ndary enrichment (IDS) and about 220airs 55idles I just bought 35vents and 180/190 mains for the new 2.1 that is getting built. |
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| Scott S |
Dec 31 2009, 04:08 PM
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#7
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Small Member Group: Members Posts: 1,697 Joined: 30-April 03 From: Colorado Member No.: 633 |
Ha! Holy cow Brant!
Brant, who do you order your jets from? Thanks for the chart Jmill. Mr Gint - I would love to borrow that book. I think I will also call PMO, as I will be using their spacers between the head and the intake manifold - I am sure that will alter things too. Happy New Year (IMG:style_emoticons/default/beerchug.gif) |
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| campbellcj |
Jan 1 2010, 02:17 AM
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#8
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I can't Re Member Group: Members Posts: 4,545 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California
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PMO has jets and many other parts.
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