 Vents & Jetting 44 IDF's for 2.0 |
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| bobhasissues |
 May 11 2007, 01:16 PM
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seemingly endless issues with my 914  Group: Members Posts: 218 Joined: 13-February 07 From: Chicagoland Member No.: 7,532 Region Association: None  |
I'm trying to get my 2.0 to run with Weber 44 IDF's. Can anyone share sizes of Main Venturi, Main Fuel and Air Corrector jets for a stock 2.0? What's working for you? There's a lot of conflicting information out there regarding the venturi. Some say 28mm while others say the 36mm will work. I would really appreciate feedback from someone with firsthand experience.
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| SirAndy |
May 11 2007, 01:23 PM
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Resident German Group: Admin Posts: 41,633 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(bobhasissues @ May 11 2007, 11:16 AM)  I would really appreciate feedback from someone with firsthand experience. well, mine wasn't a stock 2.0L, i had a warmed over 2056 with a agressive cam, but here's some info anyways ... the 36mm venturis will flow way too much air. the motor will bog down at the off idle transition. on my 2056, i had to go down to 32mm venturis to get a nice, clean powerband without any flatspots. the larger venturis just don't get the airspeed needed ... for a stock 2.0L, i suggest you go with the smaller 28mm. i can't really comment on the jetting for a stock motor. maybe jake will throw in some info ... (IMG:style_emoticons/default/bye1.gif) Andy PS: (IMG:style_emoticons/default/welcome.png) |
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| LvSteveH |
May 12 2007, 12:26 AM
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I put the Poor in Porsche Group: Members Posts: 1,080 Joined: 22-April 03 From: Las Vegas, Nevada Member No.: 600 |
This should be a good starting point for a stockish 2.0L using 44's
32 vents F11 emulsion 175 air 50 idle 130 main Another option would be: 32mm vent F 7 emulsion 200 air 50 idle 130 main |
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| ws91420 |
May 12 2007, 08:03 AM
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Yes I have one a Lensley 914 Group: Members Posts: 2,063 Joined: 10-September 03 From: Ruther Glen,VA (halfway between sticks and civilization) Member No.: 1,137 Region Association: MidAtlantic Region |
Is there a way to determine vent size w/o disassembly or w/o having to get gaskets for a rebuild?
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| SirAndy |
May 12 2007, 12:15 PM
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#5
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Resident German Group: Admin Posts: 41,633 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(ws91420 @ May 12 2007, 06:03 AM) Is there a way to determine vent size w/o disassembly or w/o having to get gaskets for a rebuild? you could measure it ... (IMG:style_emoticons/default/poke.gif) Andy |
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| bperry |
May 12 2007, 12:29 PM
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Lurker Group: Members Posts: 477 Joined: 16-February 04 From: Dallas, Tx Member No.: 1,661 |
QUOTE(ws91420 @ May 12 2007, 09:03 AM) Is there a way to determine vent size w/o disassembly or w/o having to get gaskets for a rebuild? If they are unmodified weber venturis, they will have the size cast into the top of the vent. Using a flashlight you should be able to see it by looking down from the top. It will be a raised number along the mid to upper edge. Mine came from the factory with the numbers directly under the accelerator pump jets. Still readable though. See photo below --- bill  |
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