Look for some better than the stainless parts. A bigger radius roll at the
outer edge will flow more air and also assist in swallowing more of the
standoff when using a BIG camshaft.
----- Original Message -----
From: Joe Curry <spitlist@gte.net>
To: <GuyotLeonF@aol.com>
Cc: <kaskas@earthlink.net>; FOT <fot@autox.team.net>
Sent: Tuesday, January 25, 2000 5:09 PM
Subject: Re: Velocity Stacks and Rampipes? was SU carb fuel flow
> To add to Leon's question, I would like to know if I would be better off
> finding some differently shaped alloy pipes or buy some of the original
> Stainless ones that come with DCOE carbs? Since the setup I have
> doesn't have any, now would be an ideal time to consider the options!
>
> Regards,
> Joe
>
> GuyotLeonF@aol.com wrote:
> >
> > In a message dated 25/01/00 23:05:01 GMT Standard Time,
kaskas@earthlink.net
> > writes:
> >
> > << The shape of the velocity stacks is super important. The air is
actually
> > drawn from the carburetor side of the air inlet and so must go around
the
> > corner to get into the carburetor. Therefore making a smooth roll on
the
> > edge makes this possible and will alter the value if not taken into
> > consdieration. There are several companies that make this kind of
stack.
> > (NO, I don't know who off hand but I know if I wanted these parts I'd
sure
> > find 'em.)) >>
> >
> > Dear Kas and other FOT'ers
> >
> > My Vitesse has Triple Weber 40DCOE-18's fitted with the old style of
steel
> > Rampipes.
> >
> > Firstly,
> > Are they what you are referring to as velocity stacks? or is that
something
> > different?
> >
> > Secondly,
> > I have seen some racers using a more modern design of alloy rampipes,
> > referred to as 'full radius' rampipes, which apparently exhibit
increased
> > airflow due to roll back lip design...
> >
> > I would be interested to hear of your (Kas) and any other FOT'ers
thoughts on
> > these, and whether they are a worthwhile upgrade from the old design?
> >
> > Léon F Guyot
> >
> > Triumph Sports Six Club
> > International Liaison Secretary
> > 1963 Triumph Vitesse 2-Litre Convertible
> > Wimbledon, London, England.
>
> --
> "If you can't excel with talent, triumph with effort."
> -- Dave Weinbaum in National Enquirer
>
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