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Registered
Join Date: Oct 2011
Location: Carignan, Quebec.
Posts: 13
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Camshaft selection for a 2.7w/ Weber carbs.
I have converted my 1973 2.4 to a 2.7 with 90mm pistons & cyls., 911s heads w/ 35mm ports and Weber 40ida3c carbs w/ 30mm venturies which I plan on opening up to 34mm. The cams I have now are 14300 & 14400 which I believe are CIS cams and not suitable for this engine. I would appreciate any input in choosing the ideal cams for this combination.
Thanks, Craig. |
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01-27-2012, 01:53 PM
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,543
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depends on your pistons. if you went with euro 2.7 pistons, then E/solex cams work great.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 Last edited by john walker's workshop; 01-28-2012 at 06:46 AM.. Reason: sp |
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01-27-2012, 02:31 PM
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Join Date: May 2003
Posts: 3,346
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Second Johns recommendation. You'll be tempted to use 911S cams. Don't do it. I've raced and street driven with Solex and "S" cams. The Solex are better in every way.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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01-27-2012, 10:07 PM
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Join Date: Dec 2001
Location: Ky, USA
Posts: 1,131
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I have 40IDAs and Solex cams on my 2.7. Love it. Very drivable and great throttle response.
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01-28-2012, 06:34 AM
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Join Date: Jul 2005
Location: Northeastern,Ohio
Posts: 36
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I used the euro pistons and Solex cams when I built my 2.7. My car pulls hard from idle to 7100 rpms.
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01-28-2012, 06:54 AM
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Registered
Join Date: Jul 2001
Location: mt. vernon Wa. USA
Posts: 8,754
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One of my favorite engines was my 2.7 with Webers, 9.5:1 JE pistons, E-cams, SSI's and 2in-1out Dansk sport muffler. This combo just worked!
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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01-28-2012, 08:41 AM
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Registered
Join Date: Oct 2011
Location: Carignan, Quebec.
Posts: 13
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Thanks for the input, guys. I'll be in the market for a set of these cams, possibly trading up my 911T CIS cams. I have 1 more question - will my 30mm venturies be sufficient with this set-up or will I have to go to 32 or 34?
Targaman |
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01-29-2012, 03:26 PM
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Registered
Join Date: Dec 2001
Location: Ky, USA
Posts: 1,131
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The Weber guru is Paul Abbott of Performance Oriented
Hes on this forum, but I cant remember his handle. |
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01-29-2012, 03:46 PM
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Registered
Join Date: Jul 2001
Location: mt. vernon Wa. USA
Posts: 8,754
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As a great starting configuration, I would suggest :
34mm main vents 145 main jets 180 air 60 idle regards, al When i built my 2.7, I got these sizes off of the PMO website and they worked very well. +1 for Paul Abbott. he rebuilt a set of Webers for me.............excellent work.
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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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01-29-2012, 03:46 PM
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Registered
Join Date: Jun 2009
Location: Clarksville TN.
Posts: 553
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Paul Abbott is ( 1Quicks ) here on Pelican.
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01-29-2012, 04:38 PM
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