dual carb adjustment

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jeff930
New Member
Posts: 6
Joined: Sat Sep 12, 2009 5:07 pm
Location: Big Bear Lake, CA

dual carb adjustment

Post by jeff930 »

i have dual webbers on my 1914 motor and they were recently tuned for down the hill but now its about 7000 feet in altitude... what adjustments do i do other then the idle :?: :?:
fatalifeaten
Senior Member
Posts: 512
Joined: Sun Feb 03, 2008 12:05 am
Location: The 480

Post by fatalifeaten »

As you go higher, you run richer because the air thins out, so the odds are you're going to either need to tweak your A/F ratio or rejet. Depends on your setup right now and what your tuning elevation is set for currently.

Give this a shot.

http://www.thesamba.com/vw/forum/viewto ... t=altitude

How are you jetted right now? How is your engine set up? Give us a rundown, as the parts inside will also make a difference in how your jetting should be set.

There's a lot more to it than just changing the idles. The adjustments required will be different for every setup. There's a lot of plug reading and jet tuning inolved and if you're not accustomed to doing it, you'll probably have to make several jet adjustments to get it right.
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