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 Weber 28/36 DCD 23 primary venturi
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melle
V4 Guru

United Kingdom
2603 Posts

Posted - 19 Feb 2018 :  22:13:29 Show Profile Visit melle's Homepage Reply with Quote
I'm looking for a Weber 28/36 DCD 23mm primary venturi. Gave one away recently as I thought I wouldn't need it, changed my mind though. Can swap for larger size, I think I have a spare 25 and 26.

www.saabv4.com

melle
V4 Guru

United Kingdom
2603 Posts

Posted - 13 Mar 2018 :  13:43:58 Show Profile Visit melle's Homepage Reply with Quote
Still looking for a DCD 23mm primary venturi.

www.saabv4.com
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green96v4
V4 Fanatic

Canada
393 Posts

Posted - 14 Mar 2018 :  11:46:15 Show Profile Visit green96v4's Homepage Reply with Quote
this one on eBay (Germany), but it's not cheap!

https://www.ebay.com/itm/28-36-DCD-VENTURI-gr-23mm-WEBER-CARBURATEUR-aluminium-1-4-pieces-VENTURI/162823120328?hash=item25e903a5c8:m:mOiOZN-kttbKAFv8fdiNG_A
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melle
V4 Guru

United Kingdom
2603 Posts

Posted - 14 Mar 2018 :  14:10:08 Show Profile Visit melle's Homepage Reply with Quote
You can also get them from FRC for about 16 I think, but I was hoping to swap. Many used DCDs come with 23/24 venturis whereas most people seem to prefer a 26/27 set-up for a V4 (bigger is better?).

www.saabv4.com
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green96v4
V4 Fanatic

Canada
393 Posts

Posted - 15 Mar 2018 :  09:36:53 Show Profile Visit green96v4's Homepage Reply with Quote
16 sounds better than 40 odd!
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melle
V4 Guru

United Kingdom
2603 Posts

Posted - 15 Mar 2018 :  11:36:05 Show Profile Visit melle's Homepage Reply with Quote
It does, so they're my plan B. I'm in no hurry, running 24/27 in my 96 at the moment, I want to test how a smaller primary (= higher air velocity) affects bottom torque. I have a 28 secondary (= more air cfm = more fuel) to go in for better high rpm performance. Be interesting so see if I understand the theory, how well theory and practice align and how far I can push primary and secondary venturi sizes apart before driveability and fuel consumption get affected.

www.saabv4.com
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green96v4
V4 Fanatic

Canada
393 Posts

Posted - 15 Mar 2018 :  14:58:10 Show Profile Visit green96v4's Homepage Reply with Quote
way over my head!!!

but then I'm still running the FoMoCo carb! (which despite everyone's complaints about it, has never given me trouble - famous last words!!!)
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