With carbs the secret is all in the tuning, or the jetting.........If dialed
in right they can be darn close to fuel injection.

Adam P
81  Westy "The Brick "
70 Single Cab "Whitey"
74 Beetle "Ol Yeller"
73 Transporter (STILL at paint shop)
1988 Vanagon Wolfsburg
75 Campmobile "for sale'
Used Vanagon Parts for sale (mostly aircooled)
----- Original Message -----
From: "Ari Ollikainen" <Ari@OLTECO.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, July 29, 2002 4:33 PM
Subject: Re: Carbs R.I.P.

> At 3:54 PM -0300 7/29/02, Malcolm Stebbins wrote:
>
> >  I had the emissions recorded and posted the results to the list (
> >http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind0005B&L=vanagon&P=R3097
> >9 )  As I recall it was not so 'dirty'.  Also, any emissions study
> >will have to include all of the diagnostics & replacement of EFI
> >stuff (that constitutes about 20% of the discussion on this list).
> >also carbs 'wear' slowly over time and don't 'break' so I hope to get
> >some warning prior to being stranded.
>
>         Offhand, I'd say that your idea of "dirty" needs some revision.
>
>         Here's a comparison of yours versus mine...at IDLE
>
>         Malcom's carburetor       California spec '91 Carat
>         equipped '91                tested 6/01
>                                               MAX ALLOWED
>         HC 228                    HC  0023    0120 (ppm)
>         CO  2.23                  CO  0.03    1.00 (%)
>         O2  2.03                  O2   0.6     --
>         CO2 12.5                  CO2 14.3     --
>         A/F 14.9                  A/F  - -
>          RPM  914                  RPM  890
>
>
>         Please NOTE the CALIFORNIA MAX ALLOWED values for HC and CO
>         which your carb equipped engine hadily exceeds. The CA average
>         test result for the same vehicle year are HC= 0.30 and CO= 0.10
>
>
>
> -----------------------------------------------------------------------
>     "Global Crossing and 360networks will battle for global supremacy,
>      but in a trillion-dollar market, there will be no loser."
>                               - George Gilder, Forbes, 2/19/01
> -----------------------------------------------------------------------
>         OLTECO                    Ari Ollikainen, Consultant
>         P.O. BOX 20088            Networking Architecture & Technology
>         Stanford, CA              Ari@OLTECO.com
>         94309-0088                415.517.3519
>