[net.auto] Weber carb conversion for Triumph

pgf (04/05/83)

	I have 73 Triumph GT6, which could use some new life in the 
	carb area.  (The GT6 is essentially a hardtop Spitfire with
	a 2 liter six like the TR6.)  Right now I have dual Strombergs,
	and I have been considering getting Webers instead.  I know of
	some triple Weber conversions, but they seem a bit drastic, and
	I have to cut open my hood to make 'em fit.  Has anyone found or
	had experience with double (or even single) Weber conversions, 
	especially on GT6's or TR6's?  A place in Linden NJ is going to
	have a kit soon to adapt downdraft Webers in place of the side-
	draft Strombergs.  Anyone have better ideas?  Does that sound
	like a reasonable thing to want to do?

				Paul Fox BTL Holmdel (...!houxm!pgf)

crc (04/06/83)

	I have a 74 TVR (TR6 engine/tranny) and have been considering the weber
conversion.
	The normal weber conversion uses 45DCOE or 40DCOE carbs. These 
are really for racing or serious sports-car people. They allow the
engine to breathe very well. However, they (the DCOEs) also tend to
require constant tuning. Tuning triple carbs is an art and difficult
too- UNLESS you have a "colour tune", from england, a spark plug with a
clear insulator. Then its said to be easy. Still, If you are the install
it and forget type, don't go for triple carbs.
	The one or two carb down draft system will not be as good as
tripl carbs, but you won't notice unless you are doing well over 6000
rpm. I think the downdraft set will be better for street use, and will not
require constant tuning.
	You should also know that the tr6 engine is a VERY modified version
of the 2000cc  six in your GT6, so the manifolds may not match.
	I think the place you refer to in Linden is "Seven Flags",
which has a good reputation.

			Charles Colbert

jlw (04/07/83)

My 1972 BMW 2002 is currently running a Holly carb.  This may not
sound like an upgrade from the Zenith 2bbl progressibe (vacuum) 32/36
downdraft, but I assure you that it is.  The Holly is a Weber design
made under licence by Holly for the 1971-1 Pinto 4 banger.  It is a very
nice 32/36 2bbl progressive(mechanical) downdraft.  The nicest part is that
the price was (in 1979) only $66 rather than the $395 BMW wanted for
the Zenith replacement.


					Joe Wood
					ABI - HO
					ariel!jlw