Re: [T3] Single carb vs. Dual carb

[Scott Taylor <scottbtaylor@earthlink.net>]

<x-flowed>I agree with Jason. The early 32PHN carbs were problematic (flat spots, 
a tendency to stall on hard cornering), but many improvements were made 
over the years, the adjustable accelerator pump in particular. The 
Elfrink manual has many pages devoted to the ongoing improvements. I 
think by 1965 or so the major problems had been worked out. The big 
advantages of the single carb are simplicity and engine compartment 
access. That and (in comparison with the S models) the ability to run 
on low octane fuel. It's hard to argue with the increase in both power 
and fuel economy that the dual carbs offer, but I still prefer the 
single carb. I got pretty good at balancing 1500S carbs over the years, 
but that doesn't mean I ever enjoyed it!

Scott
62 343

On Thursday, November 11, 2004, at 07:07  AM, Jason Weigel wrote:

> I think the single carb gets a bad wrap due to its hesitation 
> tendencies. Being the owner of several variations, I can see where 
> frustration can set in. Andre has had some of the worse (go figure not 
> Andre ;) ) hesitation problems from a Stock 1500 SP side draft motor 
> Ive seen. But as time progressed VW changed the carb with small 
> refinements and better distributors.
>
> Some early oddities were an adjustable plastic linkage, a cam follower 
> throttle cable to get a longer throw for the gas peddal and the most 
> effective adjustment screw for the accelorator pump. All these were 
> attempts at releaving the single carb of hesitation issues.
>
> My all stock 63 had the weird cam follower deal on it and I didnt like 
> it. I lost feel with it on. Ive since removed it with little to no 
> hesitation issues. My latest 65 RHD notch is single carb as well and 
> it drives like a champ with no hesitation. When I get my 62 running 
> Ill know more about the odd, first single carb/iron dizzy combo.
>
> The dual carbs on the other hand are awsome in comparision. Its like 
> going from a 25 hoarse to a 1600. The duals are crisper, quicker and 
> feel more powerfull. The power range stays longer at higher rpm. I 
> miss duals so much Im going to change my 65 to a dual carb S motor. I 
> cant wait.
>
>
> > My thinking was that this must have meant that there was something 
> > wrong with
> > his single carb that he never figured out, but I've never dealt with 
> > these.
> > What's the consensus of single carb owners out there?
> >
> > We agreed that the dual carbs were much better.

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