 Larger chokes (venturies) on my Webers? |
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| Eddie914 |
 Oct 19 2004, 07:35 PM
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Unregistered  |
I have removed the Weber 40IDC 3A carbs for a rebuild.
They currently have 32mm venturies. Will larger venturies give more top end power? The engine is 2.7 from a '77 911. Internals (P/Cs, compression ratio, Cams) are unknown. Bursch Headers with megaphones (with removable baffles). The car is 90% track. Weighs less than 2100lbs. Thanks Eddie |
 
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Replies
| Root_Werks |
Oct 21 2004, 09:08 AM
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Village Idiot  Group: Members Posts: 8,738 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest 
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Hey Eddie,
Put those 40/36's on that guys 2.8 last night and holy (IMG:style_emoticons/default/ohmy.gif) !!! Big difference on his car. Althoug he has 37mm ports, mod E cams and 9.5/ratio so his engine was just eating up the fuel last night. We of course had to "Test" drive the new carbs. (IMG:style_emoticons/default/biggrin.gif) Anyway, the set we pulled off his car are 40/34's not 40/36's like I thought. Bummer, but if you want to try them out, I don't think he will care at all for a while. They are in pretty good shape and should be a bolt on and go sort of thing. Good enough to just fiddle around with. Up to you. (IMG:style_emoticons/default/boldblue.gif) |
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Posts in this topic
Eddie914 Larger chokes (venturies) on my Webers? Oct 19 2004, 07:35 PM
TimT Yes you will get more top end, but you will give... Oct 19 2004, 07:44 PM campbellcj I could be wrong (it happens every few years :sha... Oct 19 2004, 09:29 PM fiid Did you know if you spell carbs wrong you get crab... Oct 19 2004, 10:06 PM nebreitling LMFAO... Oct 19 2004, 10:23 PM Eddie914 I pulled the carbs apart tonight.
Current jetting... Oct 20 2004, 01:43 AM J P Stein It's not a good idea to just change one aspect... Oct 20 2004, 02:03 AM Joe Ricard Well Maybe I'm and idiot (I doubt it) But CIS ... Oct 20 2004, 06:23 AM Root_Werks For something cammed like a 2.7S engine you will w... Oct 20 2004, 08:50 AM Thorshammer Since the SCCA has stuck me with 34mm Venturis, I ... Oct 20 2004, 10:09 AM Eddie914 The power curve is fairly linear. The rev limiter ... Oct 20 2004, 11:33 AM Root_Werks Probably, they are going on a cutomers 2.8 tonight... Oct 20 2004, 11:39 AM Eddie914 Dan,
Oops!
I meant to ask if the 40/36 Weber... Oct 20 2004, 11:44 AM Root_Werks Hmm, I might have another set we could use though.... Oct 20 2004, 11:46 AM Eddie914 I'll do the antipercolation modifications and ... Oct 20 2004, 12:38 PM J P Stein ... Oct 20 2004, 06:00 PM Eddie914 JP,
What are the specs on your 2.7?
What are the... Oct 21 2004, 08:50 AM J P Stein ... Oct 21 2004, 12:52 PM
Eddie914 Dan,
Thanks for the offer. I'd love to try ou... Oct 22 2004, 12:01 AM |
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