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-   -   Need some jetting advice (http://forums.pelicanparts.com/porsche-911-technical-forum/272094-need-some-jetting-advice.html)

Headrage 03-17-2006 02:55 PM
Need some jetting advice
 
Need some advice on jetting for my car. It's a 2.7 with cis cams running about 9.5-1 compression with 40mm webbers and stock ignition. Normal driving will be at sea level with the occasional 4000 ft run to get over the grapevine.

Whatya guys recommend???

Headrage 03-17-2006 06:50 PM
Just a little bumperoo.

Kinda like to do this tomorrow.

Thanks...

Tooth911 03-17-2006 07:07 PM
just a start 60 idels 180 air F3 em tubes 135 mains

Headrage 03-17-2006 07:28 PM
It has 60 idles in it now and runs way too fat.

Steve@Rennsport 03-17-2006 08:28 PM
Hi:

60 idles ARE indeed way too fat,...:)

Use 32-34mm venturies with 55 idles, 140-150 mains, F26 emulsion tubes and 180 air correctors.

Make sure your fuel pressure is 3.5 psi and your float levels are PERFECT. You also need a very good fuel filter setup since Weber's are quite sensitive to dirt & water.


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